1/4"-20 x 1/2" through 1 1/2"-6 x 12" UNC (Coarse) Hex Cap screws.

1/4" through 1 1/2" diameter, UNC (Coarse) and UNF (Fine) thread Grade L9 nuts.

1/4" through 1 1/2" diameter, UNC (Coarse) and UNF (Fine) Collar Lock nuts.

1/4" through 1 1/2" diameter, USS (Coarse) and SAE (Fine) L9 washers.