WORTHY MOTORCYCLE BATTERY NUT AND BOLT: This motorcycle terminal bolts and square nuts contains 6 pieces M6 x 16mm 3in1 bolts, 6 pieces M6 x 8 x 11 x 4mm( width x length x thickness), perfect for connecting sae battery connector or 8 AWG gauge inverter cable, atv battery terminal | DIMENSIONS: There is spring washer, flat washer is not removable into M6 x 16mm bolts, the screw head width is 9.8mm, head thickness of screw is 4mm, flat washer diameter is 11.6mm, thickness of flat washer is 1.5mm, this bolt is also drived by #3 phillips bit. the length, width, thickness of square nut is seperately 11mm, 8mm, 4mm | STAINLESS BOLT AND CARBON STEEL NUT: Battery connecting bolt is crafted from high-quality stainless steel A2-70 with plain finish, rust-proof, tough, and durability, the battery square nut is made of quality carbon steel, exterior finished zinc for anti-rust, ensuring the longer life time | Used for: fasten motorcycle battery terminal, atv battery, boat battery terminal, electric bikes battery | SERVICE: aim to 100% satisfication of front sales and after sales, if have any issue please contact my team