M20 spring washers galvanised trade box of 250
Hot Dip Galvanised for External Use
Spring locking washers designed to keep bolted or screwed connections tight by locking the head or nut to the substrate using friction. Hot dipped galvanised finish for high corrosion protection.
Suitable for external use with any of our bolting products for construction, engineering and general purpose applications.
External diameter - 33mm
Internal diameter - 21mm
Thickness - 3.9mm
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