iexcell 100 Pcs M2 x 20mm Thread Pitch 0.4 mm Alloy Steel 12.9 Grade Hex Socket Head Cap Screws Bolts Kit, Black Oxide Finish

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【100 Pcs M2 x 20mm Hex Socket Head Cap Screws + 1 Pcs Hex Key Come In a Plastic Storage Box】 ✔ Contains 100 Pcs M2 x 20mm hex socket head cap screws --Meets/exceeds: DIN912 --Thread size ( diameter ): 2 mm --Thread Pitch: 0.4 mm --Thread Length: 20 mm ( Range: 20.00 ± 0.42 mm), Total Length ( includes head ): 21.93 mm ( Range: 21.93 ± 0.49 mm ) --Screw head style: socket cap head, head diameter: 3.80 mm ( Range: 3.80 ± 0.18 mm), Head Height: 1.93 mm ( Range: 1.93 ± 0.07 mm) --Screw drive style: hex socket drive, also known as internal hex drive, hex size: 1.5 mm --Made of alloy steel 40Cr, black oxide finish, high strength and anti-rust --Strength grade of screws : 12.9 Grade, hardness: HRC 39-44, tensile strength: 1220 N/mm² ✔ Contains 1 Pcs hex key to drive these screws conveniently and easily --Hex size: 1.5 mm --Made of chrome-vanadium steel, nickel plated, higher strength, anti-rust ✔ Easy to store: these 100 Pcs M2 x 20mm hex socket head cap screws and 1 Pcs Hex Key come in a plastic storage box, organized conveniently and easily [ Package Contains ] M2 x 20mm-----100 Pcs Hex Key------1 Pcs [ What is Hex Socket Drive ] Hex Socket Drive, also known as Internal hex drive, have a hexagonal hole in the center that requires an Allen key, also known as a hex key or Allen wrench [ What is 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