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Home / Washers / In Stock Galvanized High-Strength Blackened Imperial/Metric Spring Washer, 1/2 Split Lock Washer, 5/8 Anti-Loosening Washer

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Washers
Origin -
Material High-Carbon Steel
Finish Blackened with Galvanized Coating
Type Split Lock Spring Washer
Measurement System Imperial and Metric Compatible
Sizes Included 1/2 inch and 5/8 inch
Hardness Rating 45-50 HRC
Tensile Strength High-Strength Grade
Primary Function Anti-Loosening and Vibration Resistance
Packaging Bulk Box (Quantity varies by selection)
Application Automotive, Machinery, and Structural Assembly

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect for heavy machinery repair

These washers are exactly what I needed for my tractor restoration. The blackened finish looks great and the galvanized coating gives me confidence they won't rust quickly. The split lock tension is strong.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Excellent anti-loosening performance

I use these on vibrating equipment at my shop. Since switching to these high-strength spring washers, we haven't had a single bolt loosen up. Highly recommended for industrial use.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Professional grade

As a mechanic, I go through a lot of washers. These hold up better than the cheap zinc ones I used to buy. The high-strength rating is no joke.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Great value for the price

You can't beat the price for this quality. The metal feels substantial and the split is clean. I keep a box of these in my garage for all sorts of projects.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Good quality, fast shipping

Ordered the 5/8 size for a structural project. They fit perfectly and seem very durable. Only giving 4 stars because the packaging was a bit battered, but the washers inside were fine.

A

Anonymous

Mar 15, 2026

Rating: 4/5

Solid product

Works as described. The imperial sizing is accurate. I wish they offered a smaller quantity pack for home users, but the bulk box is fine if you have storage space.

5 FAQ

Q: What is the maximum temperature these washers can withstand?

A: These high-carbon steel washers can generally withstand temperatures up to 400°F (204°C) without losing their temper or spring properties.

Q: Can I use these with stainless steel bolts?

A: While physically compatible, we recommend using washers of similar material to the bolt to prevent galvanic corrosion. If mixing materials, ensure proper isolation or coating.

Q: Is there a metric equivalent available in this same finish?

A: Yes, we carry a dedicated metric line with the same blackened galvanized finish. Please search our store for 'Metric Split Lock Washers' to find the specific millimeter sizes.

Q: Does this pack contain both 1/2 and 5/8 sizes mixed together?

A: No, please select the specific size variant you need at checkout. The listing covers both sizes, but they are shipped in separate packs based on your selection.

Q: Are these washers suitable for outdoor applications?

A: Yes, the galvanized coating provides corrosion resistance making them suitable for outdoor use, though extreme environments may require additional protective measures.

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