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Home
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Grade 8 Hex Nut, Plated
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1-8 J995 GRADE 8 FINISH HEX NUT, PLATED
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1-8 J995 GRADE 8 FINISH HEX NUT, PLATED
Item #:
NF8P1000000
1-8 J995 GRADE 8 FINISH HEX NUT, PLATED
$1.52729/EA
Quantity
Price
Quantity
Price
1
$1.52729/ EA
40
$1.43781/ EA
150
$1.26914/ EA
640
$0.87797/ EA
Qty
In Stock
Add To Cart
Technical Data
Product Specification
Governing Standards
Mechanical Properties
Chemical Properties
Dimensional Specifications
Product Specification
Diameter
1
Grades
Grade 8,Grade C
Finish
Plated
Weight
0.283,
Governing Standards
Governing Standards
Grade 8
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.
Grade 8 Marking
Mechanical Properties
Mechanical Properties
Grade 8
Carbon Alloy Steel, Quenched & Tempered
Per SAE J995 2017-07
Diameter
Proof Load Stress (1)
Core Hardness
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
1. The proof load in pounds for nuts is computed by multiplying the proof load stress, in psi (lbf/in2), for the nut grade, size, thread series, and type, as shown in Table 2, and tensile stress area in square inches (in2), for the applicable size and thread series shown in Table 3. (both tables available in SAE J995 2017-07 standard) To convert the inch based pounds per square inch (psi) values above to metric Megapascal (MPa) units, multiply the above values by .00689.
Chemical Properties
Chemical Properties
Grade 8
Per SAE J995 2017-07
Grade
Material
Carbon
Manganese
Phosphorus
Sulfur
% 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)
1. If agreed between purchaser and producer, sulfur content may be 0.33 maximum provided that manganese content is 1.35 minimum.
Dimensional Specifications
Dimensional Specifications
Grade 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.