1/2x28 Crush Washer for .223 5.56, 5 Pack, Black Oxide Steel | Single use conical washer for 1/2x28 threads. Compresses under torque to seat the mating part square
FITS 1/2x28 THREADS - Also listed as 1/2-28 or 0.5x28. Check your thread pitch before ordering, as 1/2x28 and 5/8x24 are not interchangeable.
CONICAL CRUSH DESIGN - The tapered face compresses as you torque, taking up the gap and seating a muzzle brake or flash hider square against the shoulder.
SINGLE USE - A crush washer deforms permanently under torque. That deformation is what holds the position, and it is why the washer is renewed each time.
FIVE PER PACK - Five washers in one pack, so you have one on hand whenever the mating part comes off and goes back on.
BLACK OXIDE STEEL - Corrosion resistant finish, uniform thickness across the face and deburred edges, so the part seats flat rather than cocking to one side.
