MCMASTER 3/8IN SS FLAT WASHER

Brand
Mcmaster-Carr Supply Co
Brand
Mcaster-Carr Supply Co
Pack Size
1.00
UOM
EA
Supplier Part Number
96659A108
Product Weight
0.05 lbs

Product Questions & Answers

these go on standard 3/8 inch bolts, right? just want to make sure before i order a bunch
Question by: Steve P on Feb 24, 2026, 7:09 PM
sized for 3/8 inch fasteners. The flat design spreads load evenly across the surface, so you get good contact without concentrating stress on any one spot. Works well anywhere you need to protect a surface or keep a fastener from pulling through.
Answer by: Customer Support on Feb 26, 2026, 6:16 AM
What's the main thing this washer is good for?
Question by: Merle C on Jan 3, 2026, 2:20 PM
Primarily, this stainless steel flat washer distributes load evenly, which helps prevent wear and tear on both the equipment and the surface it's against.
Answer by: Customer Support on Jan 5, 2026, 6:59 AM
got a 3/8 bolt, is this washer the right size for it or am i gonna be fighting it?
Question by: Lyle T on Aug 5, 2025, 7:39 AM
For a 3/8 inch fastener, the 3/8 inch size on this McMaster-Carr stainless flat washer is intended to give you a proper fit so it sits clean and helps spread the load.
Answer by: Customer Support on Aug 7, 2025, 6:02 AM