Aluminum Spacer-Tubing- 3/4″ OD x 1/2″ ID x 36″ Long–Fits M12 and 1/2″ Bolts
New Aluminum Spacer bushing bung 3/4″ OD x 1/2″ ID x 36″ Long. Fits M12 and 1/2″ Bolts. Material T-6061 Aluminum. Product information: All aluminum spacers have an acid washed finish that is compatible with anodizing and welding.