Washers FAQs
How do I know which washer size fits my bolt?
Match the washer inner hole to the bolt shank so it slides on with minimal play. For patterned sizes, use the bolt diameter in inches as your guide—for example, an M8 hole equals about 0.315 in—then confirm outer diameter and thickness suit your material.
Are brass washers a good choice for outdoor projects?
Brass is corrosion-resistant and attractive but softer than steel. It works well for decorative outdoor trim and electrical terminals, but for heavy load or marine exposure, stainless steel is usually better for long-term durability.
When should I choose milled-edge lockrings instead of a lock washer?
Choose a milled-edge lockring when you need anti-rotation on an outer surface or where vibration is a frequent issue. Lockrings provide a mechanical bite that prevents nuts or assemblies from backing off, often used in hubs, tensioning systems, and small rotating assemblies.
Is buying washers in packs of 100 worth it?
Bulk packs are cost-effective if you use washers frequently—like in workshops, maintenance, or repeated restoration tasks. For single projects, smaller packs are fine. Store bulk items in labeled containers to avoid mixed-up sizes.
Can I mix different materials for bolts and washers?
Mixing materials is possible, but be cautious of galvanic corrosion—certain metal pairs accelerate rust. For long-term outdoor or marine use, match materials (stainless-on-stainless) or use a protective coating or barrier to prevent corrosion.