Page 1 of 2
REV-03
Fastenal Product Standard
Date: November 17, 2015
FW.F436.P
Flat Washers, ASTM F436, Thru- Hardened, Plain
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.
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
2 1/4
2 1/2
2 3/4
3
3 1/4
3 1/2
3 3/4
4
OD
ID
Nominal
.625
.688
.813
.922
1.063
1.188
1.313
1.468
1.750
2.000
2.250
2.500
2.750
3.000
3.250
3.375
3.468
3.750
4.000
4.500
5.000
5.500
6.000
6.500
7.000
7.500
Nominal
.281
.344
.406
.469
.531
.625
.688
.813
.938
1.063
1.188
1.375
1.500
1.625
1.750
1.875
1.937
2.125
2.375
2.625
2.875
3.125
3.375
3.625
3.875
4.125
Thickness
Min.
.051
.051
.051
.051
.097
.110
.122
.122
.136
.136
.136
.136
.136
.136
.178
.178
.178
.178
.240
.240
.240
.240
.240
.240
.240
.240
Max.
.080
.080
.080
.080
.177
.177
.177
.177
.177
.177
.177
.177
.177
.177
.280
.280
.196
.280
.340
.340
.340
.340
.340
.340
.340
.340
OD Tolerances
ID Tolerances
< 1 = +/- .032
< 1 = -0 / +.032
1 ≤ 3 = +/- .063
1 ≤ 3 = -0 / +.063
> 3 = +/- .125
> 3 = -0 / +.125
See ASTM F436 Table 3 for other dimensional requirements
Page 2 of 2
Fastenal Product Standard
Date: November 17, 2015
REV-03
FW.F436.P
Specification Requirements:
•
•
Dimensions:
Material &
Mechanical Properties:
Finish:
Product Marking:
•
Material Test Reports:
•
•
ASTM F436, Type I
Per ASTM F436, Type I; 38-45 HRC
Light Protective Oil
Stamped to indicate manufacturer ID
Product marking F436 optional
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.