5/8 in. Zinc-Plated Steel Split Lock Washers (25-Pack)

Secure assemblies against vibration with these Hillman split lock washers. Made from durable steel with a zinc-plated finish, they provide moderate corrosion resistance for indoor or outdoor projects. Sized for 5/8 in. diameter fasteners, they help prevent nuts and bolts from loosening over time.

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Key Features:

• Vibration Resistance: Split ends bite into surfaces to help prevent fastener loosening
• Durable Build: Steel construction with zinc-plated finish for moderate corrosion resistance
• Sized for 5/8 in. Fasteners: Use with nuts and bolts of matching diameter
• Versatile Use: Ideal for indoor/outdoor projects and treated lumber applications
• Value Pack: 25 washers included for multi-project convenience

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Specifications Table:

Specification	Details
Brand Name	Hillman
Diameter	5/8 inch
Finish	Zinc Plated
Material	Steel
Number in Package	25 pack
Packaging Type	Boxed
Unit of Measurement	Inch
Package Height	1.5 in
Package Width	1.4 in
Package Length	1.8 in
Package Weight	0.7 lbs

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Frequently Asked Questions (FAQ):

Q: What size bolts do these washers fit?
A: They are designed for 5/8 in. diameter bolts or nuts—use with fasteners of the same size.

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Q: Can these be used outdoors?
A: Yes. The zinc-plated finish offers moderate corrosion resistance suitable for many outdoor applications.

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Q: Are these metric or inch sizes?
A: They are for 5/8 inch diameter fasteners (inch sizing).

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Q: How do split lock washers work?
A: The split ring compresses as the nut is tightened; the sharp edges grip the mating surface to resist loosening from vibration.

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Q: How many washers are in the box?
A: 25 washers per package.

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A Subtle Essential for Solid, Polished Hardware Moments

Think of these split lock washers as the quiet guardians of your hardware story—streamlined, zinc-kissed, and confidently minimal. Their beveled, split profile lends a refined industrial edge while keeping everything impeccably in place. Pair them with brushed steel or blackened bolts for a chic contrast on exposed shelving or custom furniture. It’s the discreet luxury of reliability, beautifully executed.

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Choose Hillman’s zinc-plated split lock washers to keep your 5/8 in. fasteners tight and your projects secure.