【Material】 The rivets are made of high quality aluminum alloy, rustproof, good anti-corrosion property and reliable, ideal for indoor and outdoor use. 【6 Different Sizes】 M3.2 x 6.4 (100pcs), M3.2 x 8 (100pcs), M3.2 x 10 (100pcs), M4 x 10 (100pcs), M4 x 16 (50pcs), M5 x 12 (50pcs). Different sizes can meet different needs. 【Function】 Blind rivets can be used for different purposes at home and workplace. These fasteners secure metal sheets together so easily and effectively. Aluminum rivets have the lowest tensile and shear values of all break-away mandrel rivets. 【Easy to Use】 Standard head size, smooth surface, easy to install and simple riveting, commonly used in pneumatic rivet tool, electric rivet tool, manual rivet tool. 【Wide Applications】 Widely used in construction, automobile, ship, aircraft, machinery, electrical equipment, furniture, etc. Especially suitable for riveting occasions where it is not practical to adopt ordinary rivet.