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2H Heavy Hex Nut

ASTM A194 Grade 2H heavy hex nuts are intended for use in flange bolting applications, as well as structural applications and with other high strength bolting. ASTM A194 covers carbon steel, alloy steel, and stainless steel nuts for bolts in high pressure or high temperature service. Grade markings consists of both the grade symbol "2H" and the manufacturer's identification mark. They are a common high strength nut used with many different bolting grades, including A193 Grade B7, F3125 Grades A325 and A490, as well as with F1554 Grade 105 anchor bolts and studs. Dimensional specifications are governed by ASME B18.2.2. Heavy hex nuts provide increased bearing surface area over finished nuts such as J995 Grade 5 nuts.

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Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsGrade 2H

Per ASME B18.2.2-2015
Nominal Diameter		UNC	UNF	UN8	F			G		H
					Width Across Flats			Width Across Corners		Thickness
					Basic	Max	Min	Max	Min	Basic	Max	Min
1/4	0.250	20	28		1/2	0.500	0.488	0.577	0.556	15/64	0.250	0.218
5/16	0.313	18	24		9/16	0.562	0.546	0.650	0.220	19/64	0.314	0.280
3/8	0.375	16	24		11/16	0.688	0.669	0.794	0.763	23/64	0.377	0.341
7/16	0.438	14	20		3/4	0.750	0.728	0.866	0.830	27/64	0.441	0.403
1/2	0.500	13	20		7/8	0.875	0.850	1.010	0.990	31/64	0.504	0.464
9/16	0.563	12	18		15/16	0.938	0.909	1.083	1.037	35/64	0.568	0.526
5/8	0.625	11	18		1 1/16	1.062	1.031	1.227	1.175	39/64	0.631	0.587
3/4	0.750	10	16		1 1/4	1.250	1.212	1.443	1.382	47/64	0.758	0.710
7/8	0.875	9	14		1 7/16	1.438	1.394	1.660	1.589	55/64	0.885	0.833
1	1.000	8	14		1 5/8	1.625	1.575	1.876	1.796	63/64	1.012	0.956
1 1/8	1.125	7	12	8	1 13/16	1.812	1.756	2.093	2.002	1 7/64	1.139	1.079
1 1/4	1.250	7	12	8	2	2.000	1.380	2.309	2.209	1 7/32	1.251	1.187
1 3/8	1.375	6	12	8	2 3/16	2.188	2.119	2.526	2.416	1 11/32	1.378	1.310
1 1/2	1.500	6	12	8	2 3/8	2.375	2.300	2.742	2.622	1 15/32	1.505	1.433
1 5/8	1.625	5 1/2	12	8	2 9/16	2.562	2.481	2.959	2.828	1 19/32	1.632	1.556
1 3/4	1.750	5	12	8	2 3/4	2.750	2.662	3.175	3.035	1 23/32	1.759	1.679
1 7/8	1.875	5	12	8	2 15/16	2.938	2.844	3.392	3.242	1 27/32	1.886	1.802
2	2.000	4 1/2	12	8	3 1/8	3.125	3.025	3.608	3.449	1 31/32	2.013	1.925
2 1/4	2.250	4 1/2	12	8	3 1/2	3.500	3.388	4.041	3.862	2 13/64	2.251	2.155
2 1/2	2.500	4	12	8	3 7/8	3.875	3.750	4.474	4.275	2 29/64	2.505	2.401
2 3/4	2.750	4	12	8	4 1/4	4.250	4.112	4.907	4.688	2 45/64	2.759	2.647
3	3.000	4	12	8	4 5/8	4.625	4.475	5.340	5.102	2 61/64	3.013	2.893
3 1/4	3.250	4	12	8	5	5.000	4.838	5.774	5.515	3 3/16	3.252	3.124
3 1/2	3.500	4	12	8	5 3/8	5.375	5.200	6.207	5.928	3 7/16	3.506	3.370
3 3/4	3.750	4	12	8	5 3/4	5.750	5.562	5.562	6.341	3 11/16	3.670	3.616
4	4.000	4	12	8	6 1/8	6.125	5.925	5.925	6.755	3 15/16	4.014	3.862

All dimensions are in inches.

2H Heavy Hex Nut

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Diameter	Thread Pitch	Width Across Flats	Height of Nut	Item #	Availability	Price	Quantity
2H Heavy Hex Nut Diameter 1/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 20 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1/2 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.2344 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0250000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.07499/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1/4-20 A194 2H HEAVY HEX NUT $0.07499/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 5/16 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 18 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 9/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.2969 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0310000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.04576/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
5/16-18 A194 2H HEAVY HEX NUT $0.04576/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 3/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 16 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 11/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.3594 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0370000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.09954/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
3/8-16 A194 2H HEAVY HEX NUT $0.09954/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 3/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 24 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 11/16 Quantity Discounts	-	2H Heavy Hex Nut Item # N2HB037NF00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $1.91964/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
3/8-24 A194 2H HEAVY HEX NUT $1.91964/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 7/16 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 14 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3/4 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.4219 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0430000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.16572/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
7/16-14 A194 2H HEAVY HEX NUT $0.16572/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 7/16 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 20 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3/4 Quantity Discounts	-	2H Heavy Hex Nut Item # N2HB043NF00-I Quantity Discounts	2H Heavy Hex Nut Availability 3-5 Working Days Quantity Discounts	2H Heavy Hex Nut Price $0.71692/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
7/16-20 A194 2H HEAVY HEX NUT $0.71692/EA Qty 3-5 Working Days Product Detail
2H Heavy Hex Nut Diameter 1/2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 13 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 7/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.4844 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0500000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.27656/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1/2-13 A194 2H HEAVY HEX NUT $0.27656/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1/2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 20 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 7/8 Quantity Discounts	-	2H Heavy Hex Nut Item # N2HB050NF00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.50687/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1/2-20 A194 2H HEAVY HEX NUT $0.50687/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 9/16 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 12 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 15/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.5469 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0560000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.55528/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
9/16-12 A194 2H HEAVY HEX NUT $0.55528/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 5/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 11 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1 1/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.6094 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0620000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.3311/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
5/8-11 A194 2H HEAVY HEX NUT $0.3311/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 5/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 18 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1 1/16 Quantity Discounts	-	2H Heavy Hex Nut Item # N2HB062NF00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.95445/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
5/8-18 A194 2H HEAVY HEX NUT $0.95445/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 3/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 10 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1 1/4 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.7344 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0750000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.46999/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
3/4-10 A194 2H HEAVY HEX NUT $0.46999/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 7/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 9 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1 7/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.8594 Quantity Discounts	2H Heavy Hex Nut Item # N2HB0870000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $0.84172/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
7/8-9 A194 2H HEAVY HEX NUT $0.84172/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 7/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 14 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1 7/16 Quantity Discounts	-	2H Heavy Hex Nut Item # N2HB087NF00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $3.27384/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
7/8-14 A194 2H HEAVY HEX NUT $3.27384/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1 5/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 0.9844 Quantity Discounts	2H Heavy Hex Nut Item # N2HB1000000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $1.00922/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1-8 A194 2H HEAVY HEX NUT $1.00922/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 1/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 7 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1 13/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.1094 Quantity Discounts	2H Heavy Hex Nut Item # N2HB112NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $3.90757/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 1/8-7 A194 2H HEAVY HEX NUT $3.90757/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 1/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 1 13/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.1094 Quantity Discounts	2H Heavy Hex Nut Item # N2HB1120000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $1.70304/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 1/8-8 A194 2H HEAVY HEX NUT $1.70304/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 1/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 7 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.2188 Quantity Discounts	2H Heavy Hex Nut Item # N2HB125NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $3.56948/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 1/4-7 A194 2H HEAVY HEX NUT $3.56948/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 1/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.2188 Quantity Discounts	2H Heavy Hex Nut Item # N2HB1250000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $2.33608/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 1/4-8 A194 2H HEAVY HEX NUT $2.33608/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 3/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 6 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 3/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.3438 Quantity Discounts	2H Heavy Hex Nut Item # N2HB137NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $5.10855/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 3/8-6 A194 2H HEAVY HEX NUT $5.10855/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 3/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 3/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.3438 Quantity Discounts	2H Heavy Hex Nut Item # N2HB1370000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $3.48144/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 3/8-8 A194 2H HEAVY HEX NUT $3.48144/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 3/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 12 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3 15/16 Quantity Discounts	-	2H Heavy Hex Nut Item # N2HB137NF00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $3.32566/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 3/8-12 A194 2H HEAVY HEX NUT $3.32566/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 1/2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 6 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 3/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.4688 Quantity Discounts	2H Heavy Hex Nut Item # N2HB150NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $6.37904/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 1/2-6 A194 2H HEAVY HEX NUT $6.37904/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 1/2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 3/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.4688 Quantity Discounts	2H Heavy Hex Nut Item # N2HB1500000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $4.32455/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 1/2-8 A194 2H HEAVY HEX NUT $4.32455/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 5/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 5.5 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 9/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.5938 Quantity Discounts	2H Heavy Hex Nut Item # N2HB162NC00-I Quantity Discounts	2H Heavy Hex Nut Availability 3-5 Working Days Quantity Discounts	2H Heavy Hex Nut Price $9.7403/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 5/8-5.5 A194 2H HEAVY HEX NUT $9.7403/EA Qty 3-5 Working Days Product Detail
2H Heavy Hex Nut Diameter 1 5/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 9/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.5938 Quantity Discounts	2H Heavy Hex Nut Item # N2HB1620000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $5.14375/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 5/8-8 A194 2H HEAVY HEX NUT $5.14375/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 3/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 5 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 3/4 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.7188 Quantity Discounts	2H Heavy Hex Nut Item # N2HB175NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $10.80513/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 3/4-5 A194 2H HEAVY HEX NUT $10.80513/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 3/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 3/4 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.7188 Quantity Discounts	2H Heavy Hex Nut Item # N2HB1750000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $6.6485/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 3/4-8 A194 2H HEAVY HEX NUT $6.6485/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 7/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 5 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 15/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.8438 Quantity Discounts	2H Heavy Hex Nut Item # N2HB187NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $11.19704/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 7/8-5 A194 2H HEAVY HEX NUT $11.19704/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 1 7/8 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 2 15/16 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.8438 Quantity Discounts	2H Heavy Hex Nut Item # N2HB1870000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $8.3255/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
1 7/8-8 A194 2H HEAVY HEX NUT $8.3255/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 4 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3 1/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.9688 Quantity Discounts	2H Heavy Hex Nut Item # N2HB200NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $18.79461/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
2-4.5 A194 2H HEAVY HEX NUT $18.79461/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3 1/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 1.9688 Quantity Discounts	2H Heavy Hex Nut Item # N2HB2000000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $10.93585/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
2-8 A194 2H HEAVY HEX NUT $10.93585/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 4 5/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 2.9531 Quantity Discounts	2H Heavy Hex Nut Item # N2HB3000000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $27.90493/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
3-8 A194 2H HEAVY HEX NUT $27.90493/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 1/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 4.5 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3 1/2 Quantity Discounts	2H Heavy Hex Nut Height of Nut 2.2031 Quantity Discounts	2H Heavy Hex Nut Item # N2HB225NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $25.95401/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
2 1/4-4.5 A194 2H HEAVY HEX NUT $25.95401/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 1/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3 1/2 Quantity Discounts	2H Heavy Hex Nut Height of Nut 2.2031 Quantity Discounts	2H Heavy Hex Nut Item # N2HB2250000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $15.41005/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
2 1/4-8 A194 2H HEAVY HEX NUT $15.41005/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 1/2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 4 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3 7/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 2.4531 Quantity Discounts	2H Heavy Hex Nut Item # N2HB250NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $19.67826/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
2 1/2-4 A194 2H HEAVY HEX NUT $19.67826/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 1/2 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 3 7/8 Quantity Discounts	2H Heavy Hex Nut Height of Nut 2.4531 Quantity Discounts	2H Heavy Hex Nut Item # N2HB2500000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $19.13439/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
2 1/2-8 A194 2H HEAVY HEX NUT $19.13439/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 3/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 4 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 4 1/4 Quantity Discounts	2H Heavy Hex Nut Height of Nut 2.7031 Quantity Discounts	2H Heavy Hex Nut Item # N2HB275NC00-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $37.40075/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
2 3/4-4 A194 2H HEAVY HEX NUT $37.40075/EA Qty In Stock Product Detail
2H Heavy Hex Nut Diameter 2 3/4 Quantity Discounts	2H Heavy Hex Nut Thread Pitch 8 Quantity Discounts	2H Heavy Hex Nut Width Across Flats 4 1/4 Quantity Discounts	2H Heavy Hex Nut Height of Nut 2.7031 Quantity Discounts	2H Heavy Hex Nut Item # N2HB2750000-I Quantity Discounts	2H Heavy Hex Nut Availability In Stock Quantity Discounts	2H Heavy Hex Nut Price $30.25537/EA Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts	See Quantity Discounts	2H Heavy Hex Nut Unit of Measure EA Quantity Discounts
2 3/4-8 A194 2H HEAVY HEX NUT $30.25537/EA Qty In Stock Product Detail

ASTM A194	This specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1⁄4 through 4 in. and metric M6 through M100 nominal. It also covers austenitic stainless steel nuts in the size range 1⁄4 in. and M6 nominal and above. These nuts are intended for high-pressure or high temperature service, or both. Grade substitutions without the purchaser’s permission are not allowed.
ASME B18.2.2	Covers the complete general and dimensional data for the various types of inch series square and hex nuts, including machine screw nuts and coupling nuts.
ASME B1.1 UNC & UNF Class 2B	Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

Carbon Steel, Quenched & Tempered		Per ASTM A194/A194M-16
Diameter	Proof Load Stress	Core Hardness		Tempering Temperature
	Min psi	Rockwell		Min
		Min	Max
1/4" thru 1 1/2"	175,000	C24	C35	850F
Over 1 1/2"	175,000		C35	850F

Per ASTM A194/A194M-16
Grade	Material	Carbon	Manganese	Phosphorus	Sulfur (1)	Silicon
Grade	Material	% by weight	% by weight	% by weight	% by weight	% by weight
2H	Carbon Steel	0.40 min	1.00 max	0.040 max	0.050 max	0.04 max

2H Heavy Hex Nut

2H Heavy Hex Nut

Technical Data

Governing Standards

Governing StandardsGrade 2H

Mechanical Properties

Mechanical PropertiesGrade 2H

Chemical Properties

Chemical PropertiesGrade 2H

Dimensional Specifications

Dimensional SpecificationsGrade 2H

Diameter

Thread Pitch

Use

Thread Type

Width Across Flats

1/4-20 A194 2H HEAVY HEX NUT

5/16-18 A194 2H HEAVY HEX NUT

3/8-16 A194 2H HEAVY HEX NUT

3/8-24 A194 2H HEAVY HEX NUT

7/16-14 A194 2H HEAVY HEX NUT

7/16-20 A194 2H HEAVY HEX NUT

1/2-13 A194 2H HEAVY HEX NUT

1/2-20 A194 2H HEAVY HEX NUT

9/16-12 A194 2H HEAVY HEX NUT

5/8-11 A194 2H HEAVY HEX NUT

5/8-18 A194 2H HEAVY HEX NUT

3/4-10 A194 2H HEAVY HEX NUT

7/8-9 A194 2H HEAVY HEX NUT

7/8-14 A194 2H HEAVY HEX NUT

1-8 A194 2H HEAVY HEX NUT

1 1/8-7 A194 2H HEAVY HEX NUT

1 1/8-8 A194 2H HEAVY HEX NUT

1 1/4-7 A194 2H HEAVY HEX NUT

1 1/4-8 A194 2H HEAVY HEX NUT

1 3/8-6 A194 2H HEAVY HEX NUT

1 3/8-8 A194 2H HEAVY HEX NUT

1 3/8-12 A194 2H HEAVY HEX NUT

1 1/2-6 A194 2H HEAVY HEX NUT

1 1/2-8 A194 2H HEAVY HEX NUT

1 5/8-5.5 A194 2H HEAVY HEX NUT

1 5/8-8 A194 2H HEAVY HEX NUT

1 3/4-5 A194 2H HEAVY HEX NUT

1 3/4-8 A194 2H HEAVY HEX NUT

1 7/8-5 A194 2H HEAVY HEX NUT

1 7/8-8 A194 2H HEAVY HEX NUT

2-4.5 A194 2H HEAVY HEX NUT

2-8 A194 2H HEAVY HEX NUT

3-8 A194 2H HEAVY HEX NUT

2 1/4-4.5 A194 2H HEAVY HEX NUT

2 1/4-8 A194 2H HEAVY HEX NUT

2 1/2-4 A194 2H HEAVY HEX NUT

2 1/2-8 A194 2H HEAVY HEX NUT

2 3/4-4 A194 2H HEAVY HEX NUT

2 3/4-8 A194 2H HEAVY HEX NUT