Hex head bolt. M12 x 22mm long below the washer, 1.5mm thread pitch. Steel washer is 30mm (1-3/16") in diameter and is included with each bolt.
Part Number B53
Made in USA
Price each $10.15
See W81 for "T" Wrench for this bolt.
phone 413-773-8909, fax 413-773-5448, sales@compoundmanufacturing.com