NORD-LOCK Wedge Lock Washer: Steel, Delta Protect, Fits 3/8 in Bolt Size, 0.41 in Inside Dia., 10 PK - 12W451|1526 - Grainger
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Value Collection - 3/8" Screw, 0.398" ID, Steel Internal Tooth Lock Washer - 87920781 - MSC Industrial Supply
NORD-LOCK Lock Washer: Carbon Steel, Carbon Steel, Zinc Plated, Fits 3/4 in Bolt Size, 100 PK - 405F11|2403 - Grainger
NORD-LOCK Wedge Lock Washer: Steel, Delta Protect, Fits 5/16 in Bolt Size, 0.1 in Thick, 20 PK - 12W448|1523 - Grainger
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