This steel hex head bolt has 12 threads per inch. (1/2"-12) It measures 13/16" long below the washer. The hex head measures 3/4" across the flats. The steel washer is captive, it rotates but does not come off. The steel washer is .11" thick and measures 1-3/8" in diameter.
Part Number B56
Made in USA
Price each $11.87
See W81 for "T" Wrench for this bolt.
phone 413-773-8909, fax 413-773-5448, sales@compoundmanufacturing.com