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Washer, 3/8" Flat Hardened

Washer, 3/8" Flat Hardened - Main image
$0.4 $0.65 In stock

Washer, 3/8" Flat, Hardened

This washer has a Rockwell hardness rating of C38 and a strength grade/class of Grade 8.
High Fastener Strength Rating—About 25% stronger than medium-strength steel washers, these are commonly used when fastening components in valves, pumps, and motors. Pair them with other high-strength steel nuts and bolts.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Richard ★★★★★

Needed a hardened washer for a high-torque application, and the Rockwell C38 rating handled the load without any deformation. They're noticeably thicker and more rigid than standard hardware store washers.

Jason ★★★★★

Picked up a pack of these hardened washers for a suspension rebuild on my truck. The Rockwell C38 rating gives me confidence they'll handle the torque without deforming.

Madison ★★★★☆

Used a few of these on a heavy equipment repair with grade 8 bolts—they didn't deform at all under torque. The C38 hardness definitely gives me more confidence than standard washers.