External Tooth Lock Washer, For Screw Size 5/16 in Steel, Zinc Plated Finish, 100 PK MPN:U37420.031.0001
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In Stock
Free Shipping
In Stock
SKU
510-G1817024
External Tooth Lock Washer, For Screw Size 5/16 in Steel, Zinc Plated Finish, 100 PK
Prevent over-tightening and damage to bolts and nuts with GoVets Select's External Tooth Lock Washers. Designed for use with 5/16 inch steel bolts, these zinc-plated washers provide a secure grip to prevent loosening and slipping. Ideal for applications in construction, manufacturing, and heavy industry, they meet or exceed ASME B18.21.1 standards. With a Rockwell hardness of C40 to C50, these lock washers ensure a reliable hold and can withstand harsh conditions. Available in packs of 100, they are a convenient and cost-effective solution for any project requiring secure bolt and nut connections.
Top product features:
- Prevents loosening of bolts and nuts
- Has an external tooth design to provide additional grip
- Meets/exceeds ASME B18.21.1 standards for quality and performance
Top product applications:
- Heavy machinery maintenance
- Industrial equipment assembly
- Automotive repair and maintenance
Lock Washer, External Tooth, Type A, Carbon Steel, Finish Zinc, Fits Bolt Sizes 5/16 In., Inside Dia. 0.332 In., Outside Dia. 0.610 In., Thickness 0.034 In., Rockwell Hardness C40 to C50, Helps Prevent Loosening, For Use With Bolts and Nuts, Meets/Exceeds ASME B18.21.1, Refills -, Package Quantity 100
Additional Information
- Country of Origin: ZZ
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: PK
- Package Length: 3.50
- Package Width: 2.30
- Package Height: 1.80
- Package Weight: 0.10
Product info last updated on February 17, 2026 9:54am UTC
Category: Washers