Inch screws 1/4-20 (UNC)

SC14-3/8
L length 3/8” (9.52mm)

SC14-1/2
L length 1/2” (12.7mm)

SCI14-5/8
L length 5/8” (15.87mm)

SC14-3/4
L length 3/4” (19.05mm)

SC14-1
L length 1 inch (25.4mm)

SC14-1-1/8
L Length 1-1/8” (28.57mm)

SC14-1-1/4
L Length 1-1/4” (31.75mm)

SC14-1-3/8
L Length 1-3/8” (34.9mm)

SC14-1-1/2
L Length 1-1/2” (38.1mm)

SC14-1-3/4
L length 1-3/4” (44.45mm)

SC14-2
L length 2 inches (50.8mm)