Features: Fit for most motorcycle brake calipers, and brake clutch masters. Not easy to glide: motorcycle hollow screws have good performance, threads are clean and do not glide easily. Each component is precision-machined to exact tolerances for trouble-free performance. Long-lasting durability. Just rotate the fitting to properly install it in place. Please allow 1-2mm differences due to manual measurement. Specification: Color: Bronze Tone Material: Steel Washer Inner Diameter: 10.5mm / 0.41"(D) Washer Outer Diameter: 15.6mm / 0.0.61"(D) Screw Size: 44x15mm / 1.73"x0.59"(L*W) Thread Size: M10x1.0 Package Includes: 2 Pcs Motorcycle Hollow Bolt Screw 6 Pcs Washers