Specifications High-concerned chemical:None Dimensions:M2*3 DIY Supplies:Woodworking is_customized:Yes Drive Style:Hex Socket Model Number:DS 200pcs Head Style:Round Material:Stainless Steel Brand Name:AuroraCharm Origin: China Package Quantity:200-299Pcs This kit contains 200 pieces of metric hex grub set screws in M3*3mm, M3*4mm, M3*6mm, M4*4mm M4 *6mm, M5*5mm M5*8mm, M6*6mm, M6*10mm and M8*8mm and 5pcs matched internal hex drive wrenches for use on a wide range of DIY, industrial and engineering projects. Grub set screws are made of 304 stainless steel for strength and durability to last through demanding applications. Widely used for door handles, faucet, light fixture, knobs, armament repair, plumber and other small repairs around the shop, garage or home etc. All screws come organized in a durable plastic case with compartments for each size for easy portability and to keep pieces secure during transport or storage. At a fraction of the price of buying screws individually, this kit is the ideal choice for mechanics, engineers and hobbyists to have the right fastener on hand for any job.