iExcell 50 Pcs M3 x 45mm Stainless Steel 304 Hex Socket Button Head Cap Screws Hex Key Wrench Kit

?? Meets/exceeds: ISO 7380 ?? Material of Screws: Stainless Steel 304, High Strength And Anti-corrosion in Various Conditions ?? Material of Hex Key Wrench: chrome-vanadium steel, nickel plated ?? These screws and hex key come in an easy-use separated girds storage box Sizes--------------Thread Length------Total Length M3 x 45mm-----------45mm-------------46.6 mm Package Contains: M3 x 45mm--------50 Pcs Hex Key Wrench---1 Pcs Total---51 Pcs About Hex Socket Drives: ?Hex Socket drives, also known as Internal Hex drives, have a hexagonal hole in the center that requires an Allen key, also known as a hex key or Allen wrench About Button Head:: ?Button head is similar to standard pan head screws but have a curved top