The Working Load Limit and Recommended Torque value are permanently stamped into each washer.
Washer is color coded for easy identification: Red - UNC thread.
Bolt specification is a Grade 8 Alloy socket head cap screw to ASTM A 574. All threads listed are UNC.
BOLT SIZE IDENTIFICATION: The size of the bolt will be stated as in the drawing below.
Illustration shows meaning of each dimension given.
HR-125 UNC Treads
Frame Size
No.
HR-125
Stock No.
Working
Load
Limit
(lbs.)
Torque
in
Ft. Lbs.
Dimensions (in.)
Weight
Each
(lbs.)
Bolt Size
A à
Effective
Thread
Projection
Length
B
C
D
Radius
E
Diameter
F
G
H
1
1016887
800
7
5/16 - 18 x 1.50
.59
2.69
.94
.46
.34
1.69
1.11
.43
1
1016898
1000
12
3/8 - 16 x 1.50
..59
2.69
.94
.46
.34
1.69
1.09
.43
2
1016909
2500
28
1/2 - 13 x 2.00
.71
4.82
2.00
.88
.69
3.30
2.29
2.49
2
1016912
2500
28
1/2 - 13 x 2.50
1.21
4.82
2.00
.88
.69
3.30
2.29
2.52
2
1016920
4000
60
5/8 - 11 x 2.00
.71
4.82
2.00
.88
.69
3.30
2.21
2.55
2
1016924
4000
60
5/8 - 11 x 2.75
1.46
4.82
2.00
.88
.69
3.30
2.21
2.70
2
1016931
5000
100
3/4 - 10 x 2.25
.96
4.82
2.00
.88
.69
3.30
2.05
2.65
2
1016935
5000
100
3/4 - 10 x 2.75
1.46
4.82
2.00
.88
.69
3.30
2.05
3.00
3
1016942
7000 **
100
3/4 - 10 x 2.75
.90
6.55
3.00
1.37
.94
4.73
2.98
7.00
3
1016946
7000 **
100
3/4 - 10 x 2.75
1.65
6.55
3.00
1.37
.94
4.73
2.98
7.00
3
1016953
8000
160
7/8 - 9 x 2.75
.90
6.55
3.00
1.37
.94
4.73
2.85
7.00
3
1016957
8000
160
7/8 - 9 x 3.50
1.65
6.55
3.00
1.37
.94
4.73
2.85
7.00
3
1016964
10000
230
1 - 8 x 3.00
1.15
6.55
3.00
1.37
.94
4.73
2.73
7.50
3
1016969
10000
230
1 - 8 x 4.00
2.15
6.55
3.00
1.37
.94
4.73
2.73
7.50
4
1016975
15000
470
1-1/4 - 7 x 4.50
2.22
8.70
3.75
1.69
1.19
6.00
3.92
14.79
5
1016986
24000
800
1-1/2 - 6 x 6.50
2.98
12.39
4.75
2.25
1.69
8.00
5.94
33.00
5
1016997
30000
1100
2 - 4-1/2 x 6.50
2.98
12.39
4.75
2.25
1.69
8.00
5.14
36.00
6
1017001
50000
2100
2-1/2 - 4 x 8.00
4.00
16.88
5.75
3.00
2.25
11.69
8.00
88.00
7
1017005
75000
4300
3 - 4 x 10.50
5.20
19.50
7.25
3.75
2.75
14.12
8.50
165.00
8
1017009
100000
6600
3-1/2 - 4 x 13.00
7.00
22.06
7.75
4.00
3.25
16.00
9.25
240.00
*Ultimate Load is 5 times the Working Load Limit. All sizes are individually proof tested to 2.5 times the Working Load Limit.
**Ultimate Load is 4.5 times the Working Load Limit when tested in 90 degree orientation.
Long Bolts are designed to be used with soft metal (i.e. aluminum) work piece. While the long bolts may also be used
with ferrous metal (i.e., steel & iron) work piece, short bolts are designed for ferrous work pieces only.
à Bolt specification is a Grade 8 Alloy socket head cap screw to ASTM A 574.
