SHAFT COLLAR, SYSTEM OF MEASUREMENT INCH, BORE TYPE ROUND, BORE DIAMETER 7/16 IN, BORE THREAD SIZE NOT APPLICABLE, COLLAR OUTSIDE DIAMETER 15/16 IN, INSIDE HEIGHT TO FLAT NOT APPLICABLE, CLEARANCE DIAMETER 1 IN, COLLAR WIDTH 3/8 IN, COLLAR MATERIAL CARBON STEEL, KEYWAY WIDTH NOT APPLICABLE, COLLAR MATERIAL GRADE 1045, KEYWAY DEPTH NOT APPLICABLE, THREAD DIRECTION NOT APPLICABLE, CENTER TO LEVER TOP NOT APPLICABLE, COLLAR CONSTRUCTION 1-PIECE, COL