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Grade 8 Hex Nut, Plated

SAE J995 Grade 8 hex nuts are high-strength nuts manufactured from quenched and tempered carbon alloy steel. Grade 8 hex nuts are available in diameters from 1/4" through 1 1/2" inclusive. Dimensional specifications are governed by ASME B18.2.2. Grade markings include two circumferential lines located 60 degrees apart and the manufacturer's identification mark. Grade 8 hex nuts are commonly used on Grade 8 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 8

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 8 Hex Nut, Plated

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

1/4

7/16

0.2187

NF8P0250000

In Stock

$0.02993/EA

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1/4-20 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.02993/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.02993/EA
1370	$0.02803/EA
5450	$0.02499/EA
24490	$0.01646/EA

5/16

1/2

0.2656

NF8P0310000

In Stock

$0.05051/EA

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5/16-18 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.05051/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.05051/EA
910	$0.04732/EA
3640	$0.04214/EA
16370	$0.02793/EA

3/8

9/16

0.3281

NF8P0370000

In Stock

$0.05636/EA

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3/8-16 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.05636/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.05636/EA
630	$0.05292/EA
2500	$0.04732/EA
11250	$0.03133/EA

7/16

11/16

0.3750

NF8P0430000

In Stock

$0.19141/EA

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7/16-14 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.19141/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.19141/EA
540	$0.17955/EA
2160	$0.15935/EA
9680	$0.10692/EA

1/2

3/4

0.4375

NF8P0500000

In Stock

$0.19681/EA

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1/2-13 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.19681/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.19681/EA
270	$0.18475/EA
1070	$0.16379/EA
4800	$0.11036/EA

9/16

7/8

0.4843

NF8P0560000

In Stock

$0.42235/EA

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9/16-12 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.42235/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.42235/EA
180	$0.39647/EA
690	$0.35149/EA
3090	$0.23682/EA

5/8

15/16

0.5468

NF8P0620000

In Stock

$0.35721/EA

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5/8-11 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.35721/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.35721/EA
140	$0.33558/EA
550	$0.29703/EA
2460	$0.20179/EA

3/4

1 1/8

0.6406

NF8P0750000

In Stock

$0.58755/EA

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3/4-10 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.58755/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.58755/EA
90	$0.55235/EA
340	$0.48847/EA
1520	$0.33376/EA

7/8

1 5/16

0.7500

NF8P0870000

In Stock

$1.17028/EA

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7/8-9 J995 GRADE 8 FINISH HEX NUT, PLATED

$1.17028/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.17028/EA
60	$1.10087/EA
220	$0.97253/EA
950	$0.66944/EA

1 1/2

0.8593

NF8P1000000

In Stock

$1.52538/EA

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1-8 J995 GRADE 8 FINISH HEX NUT, PLATED

$1.52538/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.52538/EA
40	$1.43601/EA
150	$1.26755/EA
640	$0.87687/EA

1 1/8

11/16

0.9687

NF8P1120000

In Stock

$4.24634/EA

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1 1/8-7 J995 GRADE 8 FINISH HEX NUT, PLATED

$4.24634/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$4.24634/EA
25	$4.00161/EA
100	$3.5309/EA
500	$2.46433/EA

1 1/4

1 7/8

1.0625

NF8P1250000

In Stock

$3.94664/EA

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1 1/4-7 J995 GRADE 8 FINISH HEX NUT, PLATED

$3.94664/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$3.94664/EA
25	$3.71919/EA
80	$3.2817/EA
500	$2.29041/EA

1 3/8

2 1/16

1.6875

NF8P1370000

In Stock

$3.28441/EA

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1 3/8-6 J995 GRADE 8 FINISH HEX NUT, PLATED

$3.28441/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$3.28441/EA
25	$3.09846/EA
60	$2.73196/EA
500	$1.92212/EA

1 1/2

2 1/4

1.2812

NF8P1500000

In Stock

$9.2119/EA

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1 1/2-6 J995 GRADE 8 FINISH HEX NUT, PLATED

$9.2119/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$9.2119/EA
25	$8.69037/EA
50	$7.66243/EA
500	$5.39105/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.

Carbon Alloy Steel, Quenched & Tempered		Per SAE J995 2017-07
Diameter	Proof Load Stress (1)	Core Hardness
Diameter	psi	Rockwell
1/4 thru 5/8"	150,000	C24-C32
Over 5/8 thru 1"	150,000	C26-C34
Over 1 thru 1 1/2"	150,000	C26-C36

Per SAE J995 2017-07
Grade	Material	Carbon	Manganese	Phosphorus	Sulfur
Grade	Material	% by weight	% by weight	% by weight	% by weight
8	Carbon Alloy Steel, Quenched & Tempered	0.55 max	0.30 min	0.04	0.05 (1)

Grade 8 Hex Nut, Plated

Technical Data

Governing Standards

Governing StandardsGrade 8

Mechanical Properties

Mechanical PropertiesGrade 8

Chemical Properties

Chemical PropertiesGrade 8

Dimensional Specifications

Dimensional SpecificationsGrade 8

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Grade

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Diameter

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Width Across Flats

1/4-20 J995 GRADE 8 FINISH HEX NUT, PLATED

5/16-18 J995 GRADE 8 FINISH HEX NUT, PLATED

3/8-16 J995 GRADE 8 FINISH HEX NUT, PLATED

7/16-14 J995 GRADE 8 FINISH HEX NUT, PLATED

1/2-13 J995 GRADE 8 FINISH HEX NUT, PLATED

9/16-12 J995 GRADE 8 FINISH HEX NUT, PLATED

5/8-11 J995 GRADE 8 FINISH HEX NUT, PLATED

3/4-10 J995 GRADE 8 FINISH HEX NUT, PLATED

7/8-9 J995 GRADE 8 FINISH HEX NUT, PLATED

1-8 J995 GRADE 8 FINISH HEX NUT, PLATED

1 1/8-7 J995 GRADE 8 FINISH HEX NUT, PLATED

1 1/4-7 J995 GRADE 8 FINISH HEX NUT, PLATED

1 3/8-6 J995 GRADE 8 FINISH HEX NUT, PLATED

1 1/2-6 J995 GRADE 8 FINISH HEX NUT, PLATED