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Load Indicating Washers

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ASTM F959
ASTM F959

Plain WLI325---
Plain WLI490---

Mech Galv = WLI325---GD
Mech Galv = WLI490---GD

Zinc = WLI325---Z1
Zinc = WLI490---Z1

ASTM F959
Mechanically Galvanized Squirter = WLI490---GDS

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Bolt Size A325 A490 A325 or A490
Max OD (B) Number of Protrusions Thickness After Compression Max OD (B) Number of Protrusions Thickness After Compression ID Max (A) PTD Max
1/2 1.187 4 0.120 1.375 5 0.120 0.527 0.788
5/8 1.375 4 0.140 1.625 5 0.140 0.658 0.956
3/4 1.625 5 0.140 1.750 6 0.160 0.790 1.125
7/8 1.875 5 0.160 2.000 6 0.180 0.921 1.294
1 2.000 6 0.180 2.250 7 0.180 1.052 1.463
1-1/8 2.250 6 0.180 2.500 7 0.180 1.183 1.631
1-1/4 2.500 7 0.180 2.750 8 0.180 1.315 1.800
1-3/8 2.750 7 0.180 3.000 8 0.180 1.446 1.969
1-1/2 3.000 8 0.180 3.250 9 0.180 1.577 2.138

Dimension specifications per ASTM F959

Disclaimer: The dimensions listed are for reference only. Sizes not listed may be available off the shelf or can be manufactured to customer requirements.

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