Home > Fasteners > Nuts > Hex Nuts > Grade 8 Hex Nut, Plated

Enlarge

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.

Products
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

of 1

Sort By

View

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

5/16

1/2

0.2656

NF8P0310000

In Stock

$0.05803/EA

See Quantity Discounts

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

$0.05803/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.05803/ EA
910	$0.05436/ EA
3640	$0.04841/ EA
16370	$0.03208/ EA

5/16

1/2

0.2656

NF8P031NF00

In Stock

$0.13768/EA

See Quantity Discounts

5/16-24 J995 GRADE 8 FINISH HEX NUT, PLATED

$0.13768/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.13768/ EA
910	$0.12898/ EA
3640	$0.11487/ EA
16370	$0.07612/ 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

You've Selected

Grade

Thread Pitch

Thread Type

Width Across Flats

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

5/16-24 J995 GRADE 8 FINISH HEX NUT, PLATED