* TOOGOO is a registered trademark. ONLY Authorized seller of TOOGOO can sell under TOOGOO listings.Our products will enhance your experience to unparalleled inspiration. TOOGOO(R) 500pcs M3 M4 M5 A2 Stainless Steel ISO7380 Button Head Hex Bolts Hexagon Socket Screws With Nuts Assortment Kit Specifications: Screws Type: Hex Socket Button Head screw Size: M3 M4 M5 (Include M3 M4 M5 Nuts) Package Quantity: 500 Pcs Socket head cap screws are used for applications with limited space. They have cylindrical head and internal wrenching features (mostly hexagon socket) that allow them to be used in locations where externally wrenched fasteners aren't desirable. Also, it comes with a sturdy container kit and unlike other plastic container that comes with the kit, this transparent plastic compartment is made from high quality polyurethane for a long-standing and enduring service in order to support the combined weight of the lock nuts and usual wear and tear. This plastic container comes with a pre-installed border to keep the lock nuts neatly organized and well-kept. Color: Silver Material: Stainless Steel Package Contents: 30 x M3*8 Nuts 30 x M3*12 Nuts 30 x M3*16 Nuts 30 x M3*20 Nuts 120 x M3 Nuts 20 x M4*8 Nuts 20 x M4*12 Nuts 20 x M4*16 Nuts 20 x M4*20 Nuts 80 x M4 Nuts 15 x M5*8 Nuts 15 x M5*12 Nuts 10 x M5*16 Nuts 10 x M5*20 Nuts 50 x M5 Nuts Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.