Nut

Wheel Nut and Castle Nut

Thread	A (mm)	B (mm)	C
7/16"-20UNF-2A	18.9	14.4	60°
1/2"-20UNF-2A	20.6	16.0	60°,90°
9/16"-18UNF-2A	25.4	17.5	60°
5/8"-18UNF-2A	26.7	22.7	90°
3/4"-16UNS-2A	27.8	15.8
1"-14UNS-2A	37.5	13.7

Dust Cap

Part No.	Assembly Dia
150	45.20 mm
0803	50.25 mm
655	62.00 mm
865	69.00 mm

Pulley

1#	7/8" Nylon Pulley (White)
2#	1-1/2" Steel Pulley
3#	1-5/8" White Nylon Pulley with Square Bracket
4#	1-3/4" Red Strong Nylon Pulley with Ear
5#	1-3/4" Red Strong Nylon Pulley with Clamp Plates
6#	1-7/8" White Nylon Pulley with Square Bracket
7#	2-1/2" Steel Pulley-Short Clip Plate
8#	2-1/2" Steel Pulley with Bearing
9#	2-7/8" Sprocket Assembly
10#	3-1/2" Red Cast Iron Pulley
11#	3-1/2" Red Strong Nylon Pulley-Horizontal