3/8 in. Yellow Dichromate Steel Split Lock Washers (100-Pack)

Heavy-duty split lock washers designed to resist loosening from vibration and torque. Made from grade 8 steel with a yellow dichromate finish for added corrosion resistance—ideal for indoor and outdoor fastening projects.

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Key Features:

• Secure Hold Under Vibration: Split ends bite into mating surfaces to help prevent nuts and bolts from backing off.
• Durable Grade 8 Steel: Built to handle high-stress fastening applications with reliable strength.
• Corrosion-Resistant Finish: Yellow dichromate plating offers moderate protection in indoor/outdoor environments.
• Sized for 3/8 in. Fasteners: Matches bolts and nuts of the same diameter for proper fit.
• Bulk Convenience: Box of 100 washers keeps projects moving and reduces reorders.

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Specifications Table:

Specification	Details
Brand	Hillman
Washer Type	Split lock washer
Diameter	3/8 inch
Material	Steel
Finish	Yellow dichromate
Grade	Grade 8
Number in Package	100
Packaging Type	Boxed
Intended Use	Helps prevent nuts and bolts from loosening due to vibration
Unit of Measurement	Metric (per supplemental source)
Package Dimensions (L x W x H)	3 in x 3 in x 2 in
Package Weight	0.6 lb

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Frequently Asked Questions (FAQ):

Q: What size fasteners do these washers fit?
A: They are designed for 3/8 in. diameter bolts and nuts.

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Q: Can these be used outdoors?
A: Yes. The yellow dichromate finish provides moderate corrosion resistance suitable for many outdoor applications.

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Q: Are these hardened?
A: Yes. They are grade 8 steel split lock washers, hardened for high-strength applications.

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Q: Do I need a flat washer with these?
A: A flat washer can be used beneath the lock washer to distribute load on softer materials, but it is optional based on your application.

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Q: How many are in the pack?
A: 100 washers per box.

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Industrial polish with a purposeful edge

These yellow dichromate lock washers deliver a subtle, refined glint that elevates exposed hardware with intention. The split-ring profile is the hero—functional sculpture that keeps your fixtures taut and tailored. Pair them with blackened bolts on natural oak or brushed steel for a modern workshop-chic moment. Consider them the quiet luxury behind perfectly composed, long-lasting details.

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Lock in lasting performance—add these grade 8, corrosion-resistant washers to your cart and finish your project right.