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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.

Products
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

3/8

9/16

0.3281

NF2B0370000

In Stock

$0.1081/EA

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3/8-16 J995 GRADE 2 HEX NUT

$0.1081/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.1081/EA
630	$0.1015/EA
2500	$0.09076/EA
11250	$0.06009/EA

3/8

9/16

0.3281

NF2B037NF00

Out Of Stock

$0.03989/EA

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3/8-24 J995 GRADE 2 HEX NUT

$0.03989/EA

Qty

Out Of Stock

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Quantity	Price
Quantity	Price
1	$0.03989/EA
630	$0.03745/EA
2500	$0.03349/EA
11250	$0.02217/EA

1/2

3/4

0.4375

NF2B0500000

In Stock

$0.11582/EA

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1/2-13 J995 GRADE 2 HEX NUT

$0.11582/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.11582/EA
270	$0.10872/EA
1070	$0.09639/EA
4800	$0.06494/EA

1/2

3/4

0.4375

NF2B050NF00

In Stock

$0.26993/EA

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1/2-20 J995 GRADE 2 HEX NUT

$0.26993/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.26993/EA
270	$0.25339/EA
1070	$0.22464/EA
4800	$0.15136/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

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3/8-16 J995 GRADE 2 HEX NUT

3/8-24 J995 GRADE 2 HEX NUT

1/2-13 J995 GRADE 2 HEX NUT

1/2-20 J995 GRADE 2 HEX NUT