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ITEM#

Flat Washer Specifications

USS Washers
Bolt
Diameter
Outside
Diameter
Hole
Diameter
Dimensions
Thickness
Gauge
Inches * Approx.
Number
in 100 lbs.
Approx.
1000 Pcs
in lbs.
1/8
3/16
1/4
5/16
7/16
9/16
3/4
7/8
3/16
1/4
5/16
3/8
18
18
16
14
3/64
3/64
1/16
5/64
55400
29400
16200
9600
1.8
3.4
6.2
10.4
3/8
7/16
1/2
9/16
1
1-1/4
1-3/8
1-1/2
7/16
1/2
9/16
5/8
14
13
12
12
5/64
3/32
7/64
7/64
7460
3800
2740
2300
13.4
26.2
36.6
43.3
5/8
5/8
3/4
3/4
1-3/4
1-3/4
2
2
11/16
3/4
13/16
7/8
10
10
10
9
9/64
9/64
9/64
5/32
1290
1340
1000
930
77.5
74.8
100.0
107.6
7/8
7/8
1 S
1 L
2-1/4
2-1/4
2-1/2
2-1/2
15/16
1
1-1/16
1-1/8
9
9
9
9
5/32
5/32
5/32
5/32
720
740
580
600
139.2
135.2
170.4
165.9
1-1/8 S
1-1/8 L
1-1/4 S
1-1/4 L
2-3/4
2-3/4
2-3/4
3
1-3/16
1-1/4
1-5/16
1-3/8
9
9
9
9
5/32
5/32
5/32
5/32
490
500
520
420
204.7
199.7
194.3
236.6
1-3/8
1-1/2 S
1-1/2 L
1-5/8
3-1/4
3-1/4
3-1/2
3-1/4
1-1/2
1-9/16
1-5/8
1-3/4
9
8
8
8
5/32
11/64
11/64
11/64
360
340
280
250
276.6
297.2
351.6
402.5
1-3/4 S
1-3/4 L
2 S
2 L
3-3/4
4
4-1/4
4-1/2
1-13/16
1-7/8
2-1/16
2-1/8
7
7
7
7
3/16
3/16
3/16
3/16
230
200
180
160
430.1
498.3
551.1
628.0
S.A.E. Washers
3/16
1/4
5/16
3/8
1/2
5/8
11/16
13/16
7/32
9/32
11/32
13/32
16
16
16
16
1/16
1/16
1/16
1/16
37000
24400
21200
15140
2.7
4.1
4.7
6.6
7/16
1/2
9/16
5/8
59/64
1-1/16
1-3/16
1-5/16
15/32
17/32
19/32
21/32
16
13
13
13
1/16
3/32
3/32
3/32
11360
5900
4740
3880
8.8
16.9
21.1
25.8
3/4
7/8
1
1-1/2
1-3/4
2
13/16
15/16
1-1/16
11
11
11
1/8
1/8
1/8
2360
1720
1310
42.3
58.1
76.4
USS Washers Hot Dip Galvanized
1/4
5/16
3/8
7/16
1/2
3/4
7/8
1
1-1/4
1-3/8
5/16
3/8
7/16
1/2
9/16
16
14
14
13
12
1/16
5/64
5/64
3/32
7/64
15700
9100
6500
3350
2400
9/16
5/8
3/4
7/8
1-1/2
1-3/4
2
2-1/4
5/8
11/16
13/16
15/16
12
10
10
9
7/64
9/64
9/64
5/32
2100
1200
950
660
1 S
1-1/8 L
1-1/4 S
2-1/2
2-3/4
2-3/4
1-1/16
1-1/4
1-5/16
9
9
9
5/32
5/32
5/32
530
460
480
* Quantity per pound may vary ± 15% based on I.F.I. allowable thickness tolerances.