Tremolo Block Steel Countersunk Screws (4 x 10) with 3 Pieces; Size (W x H x Thickness): 3.0 x 1.7 x 0.5 inches (75 x 42 x 13 mm); String Pitch 0.4 inches (11 mm); 3 Mounting Screw Spacing: 0.9 inches (22.5 mm)