iExcell 250 Pcs M3 x 6/8/10/12/16 mm Hex Socket Head Cap Screws Bolts Assortment Kit, 12.9 Grade Alloy Steel, Black Oxide Finish

• ✔ Head Style: Socket Cap; Drive Style: Hex Socket, Known as Internal Hex Drives, Hex Size: 2.5 mm
• ✔ Thread Diameter: 3 mm; Thread Pitch : 0.5 mm; Head Diameter: 5.5mm; Head Height : 3mm
• ✔ 5 Sizes : M3 x 6mm M3 x 8mm M3 x 10mm M3 x 12mm M3 x 16mm
• ✔ Includes 1 Pcs Hex Key Wrench, Hex Size 2.5mm, to Drives These Screws Easily
• ✔ Package : 250 Pcs M3 Hex Socket Head Cap Screws and 1 Pcs Hex Key Wrench , Comes in an Easy-use Storage Box

✔ These screws meet/exceed: DIN 912 ✔ Material of Screws:12.9 alloy steel, hardness: HRC 39-44, tensile strength 1220 N/mm² ✔ Screws Rust proof : black oxide finish, covered with anti-rust oil ✔ Material of Hex Key Wrench: chrome-vanadium steel, nickel plated ✔ Easy to store: these screws and hex key come in an easy-use separated girds storage case Item--------Head Diameter-------Head Height------Thread Length------Total Length M3 x 6-------5.5mm/0.22"--------3mm/0.12"---------6mm/0.24"---------9mm/0.35" M3 x 8-------5.5mm/0.22"--------3mm/0.12"---------8mm/0.31"--------11mm/0.43" M3 x 10----- 5.5mm/0.22"--------3mm/0.12"--------10mm/0.39"--------13mm/0.51" M3 x 12------5.5mm/0.22"--------3mm/0.12"--------12mm/0.47"--------15mm/0.59" M3 x 16------5.5mm/0.22"--------3mm/0.12"--------16mm/0.47"--------19mm/0.75" Package Contains: M3 x 6-----------50 Pcs M3 x 8-----------50 Pcs M3 x 10----------50 Pcs M3 x 12----------50 Pcs M3 x 16----------50 Pcs Hex Key Wrench--1Pcs Total: 251 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 Socket Cap Head:  Socket Cap Head , also known as Allen head , have a recessed drive, and are commonly used when there is not enough clearance for a conventional wrench or socket. They are fastened with an Allen wrench, which is also called a hex wrench or hex key