Features: Includes everything needed to fit all phono cartridges. This selection of bolts, nuts, and washers accommodates a full range of cartridge body depths. Made from high-strength stainless steel, not aluminum, as many cartridge manufacturers specifically advise against the use of aluminum. Ensure the cartridge is correctly mounted on the headshell and always use the shortest bolts that fit your cartridge/headshell combination. The socket head on the bolts allows for easy tightening with the included Allen wrenches. 6, 8, 10, and 12mm bolts are perfect for fitting most cartridges on the market. 16 and 20mm bolts are included for deeper cartridges, and M2 bolts (10mm and 16mm) are included for most Thorens headshells. Specifications: Material: Stainless Steel Note: Please allow 1-3cm error due to manual measurement. Make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 2 x M2.5 x 6mm stainless steel hex bolts 2 x M2.5 x 8mm stainless steel hex bolts 2 x M2.5 x 10mm stainless steel hex bolts 2 x M2.5 x 12mm stainless steel hex bolts 2 x M2.5 x 16mm stainless steel hex bolts 2 x M2.5 x 20mm stainless steel hex bolts 12 x M2.5 stainless steel nuts 12 x M2.5 stainless steel washers 2 x M2 x 10mm stainless steel hex bolts 2 x M2 x 16mm stainless steel hex bolts 4 x M2 stainless steel nuts 4 x M2 stainless steel washers 1 x 2mm Allen wrench (for M2.5 hex bolts) 1 x 1.5mm Allen wrench (for M2 hex bolts)