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Fastenal Product Standard
Date: March 8, 2016
REV-03
HJN.GR8.P
Hex Jam Nut, SAE J995 Grade 8, Plain Finish
The information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. If
the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your
status as an approved vendor. Unless otherwise specified, all referenced consensus standards must be adhered to in their entirety.
Nominal
size
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1 1/8
1 1/4
1 3/8
1 1/2
1 5/8
1 3/4
1 7/8
2
F
Width Across Flats
Max.
Min.
.438
.428
.500
.489
.563
.551
.688
.675
.750
.736
.875
.861
.938
.922
1.125
1.088
1.312
1.269
1.500
1.450
1.688
1.631
1.875
1.812
2.062
1.994
2.250
2.175
2.437
2.356
2.625
2.538
2.812
2.719
3.000
2.900
H
Thickness
Max.
Min.
.163
.150
.195
.180
.227
.210
.260
.240
.323
.302
.324
.301
.387
.363
.446
.398
.510
.458
.575
.519
.639
.579
.751
.687
.815
.747
.880
.808
.944
.868
1.009
.929
1.073
.989
1.138
1.050
Specification Requirements:
•
Dimensions:
•
Material &
Mechanical Properties:
•
•
•
•
Thread Requirements:
Product Marking:
Finish:
Material Test Reports:
¼” thru 1 ½” - ASME B18.2.2
Sizes over 1 ½” - See Table Above
¼” thru 1 ½” - SAE J995, Grade 8
Sizes over 1 ½” - Hardness testing only to HRC 24 – HRC 38
ASME B1.1, UNC & UNF, Class 2B
Manufacturer ID and two circumferential lines 60º apart.
Light Protective Oil
The MTR must have documented lot traceability, dimensional
results, full chemical test results and full mechanical test results
to the specification(s) above. In addition, the MTR shall be in full
compliance with Fastenal’s MTR Requirements.