Aluminum Spacer 1/2 OD x 5/16 ID x Choose Your Length, Round Spacer Unthreaded Standoff Bushing Plain Finish, Fits Screws Bolts 5/16 or M8 by Metal Spacers Online (1/8 Length, 2 Pack)
Aluminum Spacer 1/2 OD x 5/16 ID x Choose Your Length, Round Spacer Unthreaded Standoff Bushing Plain Finish, Fits Screws Bolts 5/16 or M8 by Metal Spacers Online (1/8 Length, 2 Pack)
$11.11
Check on amazon

Outside diameter: 1/2"/12.7mm Inside diameter: 5/16"/8.1mm (fits 5/16" or M8 bolts) Length: Varies-Choose Length Shape: Round Material Type: T-6061 Aluminum with tumbled aluminum finish