iexcell 100 Pcs M2.5 x 8mm Thread Pitch 0.45 mm Alloy Steel 10.9 Grade Hex Socket Button Head Cap Screws Bolts Kit, Black Oxide Finish

【100 Pcs M2.5 x 8mm Hex Socket Button Head Cap Screws + 1 Pcs Hex Key Come In a Plastic Storage Box】 ✔ Contains 100 Pcs M2.5 x 8mm hex socket button head cap screws --Meets/exceeds: ISO7380 --Thread size ( diameter ): 2.5 mm --Thread Pitch: 0.45 mm --Thread Length: 8 mm ( Range: 8.00 ± 0.29 mm), Total Length ( includes head ): 9.43 mm ( Range: 9.43 ± 0.36 mm ) --Screw head style: button head, head diameter: 4.60 mm ( Range: 4.60 ± 0.10 mm), Head Height: 1.43 mm ( Range: 1.43 ± 0.07 mm) --Screw drive style: hex socket drive, also known as internal hex drive, hex size: 1.5 mm --Made of alloy steel 10B21, black oxide finish, high strength and anti-rust --Strength grade of screws : 10.9 Grade, hardness: HRC 32-39, tensile strength: 1040 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 M2.5 x 8mm hex socket button head cap screws and 1 Pcs Hex Key come in a plastic storage box, organized conveniently and easily [ Package Contains ] M2.5 x 8mm-----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 Button Head ] Button head is similar to standard pan head screws but have a curved top