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Grade 2 Hex Nut

SAE J995 Grade 2 hex nuts are an economical, common low strength nut manufactured from low carbon steel. Grade 2 hex nuts are available in diameters from 1/4" through 1 1/2" inclusive. Dimensional specifications are governed by ASME B18.2.2. Grade 2 requires no material marking.These nuts are equivalent in strength to ASTM A563 Grade A nuts. Grade 2 nuts are commonly used in bolting applications with Grade 2 bolts, Grade 5 bolts, and A307 bolts. Available in zinc plated finish. Zinc plating sacrifices itself, corroding before the base material, offering added corrosion resistance.

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Governing Standards
Mechanical Properties
Chemical Properties
Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsGrade 2

Per ASME B18.2.2-2015
Nominal Diameter		UNC	UNF	F			G		H
				Width Across Flats			Width Across Corners		Thickness
				Basic	Max	Min	Max	Min	Basic	Max	Min
1/4	0.2500	20	28	7/16	0.4380	0.4280	0.5050	0.4880	7/32	0.2260	0.2120
5/16	0.3125	18	24	1/2	0.5000	0.4890	0.5770	0.5570	17/64	0.2730	0.2580
3/8	0.3750	16	24	9/16	0.5630	0.5510	0.6500	0.6280	21/64	0.3370	0.3200
7/16	0.4375	14	20	11/16	0.6880	0.6750	0.7940	0.7680	3/8	0.3850	0.3650
1/2	0.5000	13	20	3/4	0.7500	0.7300	0.8660	0.8400	7/16	0.4480	0.4270
9/16	0.5625	12	18	7/8	0.8750	0.8610	1.0100	0.9820	31/64	0.4960	0.4730
5/8	0.6250	11	18	15/16	0.9380	0.9220	1.0830	1.0510	35/64	0.5590	0.5350
3/4	0.7500	10	16	1 1/8	1.1250	1.0880	1.2990	1.2400	41/64	0.6650	0.6170
7/8	0.8750	9	14	1 5/16	1.3120	1.2690	1.5160	1.4470	3/4	0.7760	0.7240
1	1.0000	8	14	1 1/2	1.5000	1.4500	1.7320	1.6530	55/64	0.8870	0.8310
1 1/8	1.1250	7	12	1 11/16	1.6880	1.6310	1.9490	1.8590	31/32	0.9990	0.9390
1 1/4	1.2500	7	12	1 7/8	1.8750	1.8120	2.1650	2.0660	1 1/16	1.0940	1.0300
1 3/8	1.3750	6	12	2 1/16	2.0620	1.9940	2.3820	2.2730	1 11/16	1.2060	1.3800
1 1/2	1.5000	6	12	2 1/4	2.2500	2.1750	2.5980	2.4800	1 9/32	1.3170	1.2450

All dimensions are in inches.

Grade 2 Hex Nut

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Diameter Thread Pitch Width Across Flats Height of Nut Item # Availability Price Quantity UOM

1/4

7/16

0.2188

NF2B0250000

In Stock

$0.02415/EA

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1/4-20 J995 GRADE 2 HEX NUT

$0.02415/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.02415/EA
1370	$0.02262/EA
5450	$0.02017/EA
24490	$0.01329/EA

5/16

1/2

0.2656

NF2B0310000

In Stock

$0.04675/EA

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5/16-18 J995 GRADE 2 HEX NUT

$0.04675/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.04675/EA
910	$0.0438/EA
3640	$0.039/EA
16370	$0.02585/EA

3/8

9/16

0.3281

NF2B0370000

In Stock

$0.10786/EA

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3/8-16 J995 GRADE 2 HEX NUT

$0.10786/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.10786/EA
630	$0.10127/EA
2500	$0.09056/EA
11250	$0.05996/EA

7/16

11/16

0.3750

NF2B0430000

In Stock

$0.03906/EA

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7/16-14 J995 GRADE 2 HEX NUT

$0.03906/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.03906/EA
540	$0.03664/EA
2160	$0.03252/EA
9680	$0.02182/EA

1/2

3/4

0.4375

NF2B0500000

In Stock

$0.1288/EA

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1/2-13 J995 GRADE 2 HEX NUT

$0.1288/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.1288/EA
270	$0.12091/EA
1070	$0.10719/EA
4800	$0.07222/EA

5/8

15/16

0.5469

NF2B0620000

In Stock

$0.31132/EA

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5/8-11 J995 GRADE 2 HEX NUT

$0.31132/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.31132/EA
140	$0.29248/EA
550	$0.25887/EA
2460	$0.17587/EA

3/4

1 1/8

0.6406

NF2B0750000

In Stock

$0.39162/EA

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3/4-10 J995 GRADE 2 HEX NUT

$0.39162/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.39162/EA
90	$0.36816/EA
340	$0.32558/EA
1520	$0.22247/EA

7/8

1 5/16

0.7500

NF2B0870000

In Stock

$0.60836/EA

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7/8-9 J995 GRADE 2 HEX NUT

$0.60836/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.60836/EA
60	$0.57228/EA
220	$0.50556/EA
950	$0.348/EA

1 1/2

0.8594

NF2B1000000

In Stock

$0.78668/EA

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1-8 J995 GRADE 2 HEX NUT

$0.78668/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.78668/EA
40	$0.74059/EA
150	$0.65371/EA
640	$0.45223/EA

1 1/4

1 7/8

1.0625

NF2B1250000

In Stock

$1.975/EA

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1 1/4-7 J995 GRADE 2 HEX NUT

$1.975/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.975/EA
25	$1.86118/EA
80	$1.64225/EA
500	$1.14618/EA

SAE J995	Covers the mechanical and material requirements for inch series fasteners used in automotive and related industries in diameters through 1-1/2″.
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.

Low Carbon Steel	Per SAE J995 2017-07
Diameter	Proof Load Stress (1)	Core Hardness
Diameter	psi	Rockwell
1/4 thru 1 1/2" UNC & 8UN	90,000	C32 Max
1/4 thru 1 1/2" UNF, 12UN and Finer	80,000	C32 Max

Per SAE J995 2017-07
Grade	Material	Carbon	Phosphorus	Sulfur
Grade	Material	% by weight	% by weight	% by weight
2	Low Carbon Steel	0.55 max	0.12 (1)	0.15 max (2)

Grade 2 Hex Nut

Technical Data

Governing Standards

Governing StandardsGrade 2

Mechanical Properties

Mechanical PropertiesGrade 2

Chemical Properties

Chemical PropertiesGrade 2

Dimensional Specifications

Dimensional SpecificationsGrade 2

You've Selected

Grade

Diameter

Thread Pitch

Width Across Flats

1/4-20 J995 GRADE 2 HEX NUT

5/16-18 J995 GRADE 2 HEX NUT

3/8-16 J995 GRADE 2 HEX NUT

7/16-14 J995 GRADE 2 HEX NUT

1/2-13 J995 GRADE 2 HEX NUT

5/8-11 J995 GRADE 2 HEX NUT

3/4-10 J995 GRADE 2 HEX NUT

7/8-9 J995 GRADE 2 HEX NUT

1-8 J995 GRADE 2 HEX NUT

1 1/4-7 J995 GRADE 2 HEX NUT