Moroso head bolt washers in 1/2in size are manufactured from 4130 chrome-moly and supplied as a 30-pack for engine assembly or rebuild projects. These washers are specified for use with 1/2in head bolts where a 4130 material washer is required, offering a full complement for multi-head jobs or when upgrading fastener hardware.
Moroso Head Bolt Washers - 1/2in - 4130 Chrome Moly - 30 Pack