Commercial Flat Washers
General-purpose flat washers for load distribution.
Commercial-pattern flat washers, plain or coated, in every stocked material.
Standards.
What are flat washers?
A flat washer spreads clamp load over a larger footprint, bridges oversized or slotted holes, and protects the surface from the turning nut. Commercial pattern is the general-purpose series; tighter patterns and special sizes are machined to order.
- Commercial (wide) pattern standard
- Through-hardened washers for structural sets
- Any material — from plain steel to Inconel
- Specials machined or cut to order
Other names
- Plain washers
- Flat rounds
- Type A washers
Tips for purchasing
- Match washer hardness to bolt grade — a soft washer under a hard bolt embeds and loses preload.
- Galvanized assemblies take galvanized washers — order as a set.
- Dimensions per ASME B18.21.1 patterns — confirm sizes with estimating.
Materials.
Representative capabilities — every item is manufactured or certified to your specification. Confirm requirements with our estimating team.
SAE & USS Washers
Narrow (SAE) and wide (USS) flat washer patterns.
Lock Washers
Helical spring and tooth washers that resist loosening.
Nord-Lock® Wedge Lock Washers
Genuine Nord-Lock® wedge-locking washer pairs, supplied by an authorised distributor, that lock bolted joints against vibration with tension rather than friction.