✔ Meets/exceeds: DIN 912
✔ Screw Head Style: Socket Cap, Head Diameter 5.5 mm, Head Height 3.0 mm; Screw Drive Style: Internal Hex Drives, Known as Hex Socket Drives, Hex Size: 2.5 mm
✔ Material of Screws: Alloy Steel 40Cr, Black Oxide Finish; Strength Grade of Screws: 12.9 Grade, Hardness: HRC 39-44, Tensile Strength: 1220N/mm²
✔ Material of hex key: chrome-vanadium steel, nickel plated, higher strength and anti-rust
✔ Rust proof of screws: black oxide finish with anti-rust oil
✔ Easy to store: these screws and hex key come in an easy-use storage case
[ Sizes ]-----[ Thread Length ]-----[ Total Length ]
M3 x 30 ------ 30 mm/1.18"------- 33 mm/1.30"
M3 x 35 ------ 35 mm/1.38"------- 38 mm/1.50"
M3 x 40 ------ 40 mm/1.57"------- 43 mm/1.69"
M3 x 45 ------ 45 mm/1.77"------- 48 mm/1.89"
M3 x 50 ------ 50 mm/1.97"------- 53 mm/2.09"
[ Package Contains ]
M3 x 30------20 Pcs
M3 x 35------20 Pcs
M3 x 40------20 Pcs
M3 x 45------20 Pcs
M3 x 50------20 Pcs
Hex Key -----1Pcs
[ About Internal Hex drives ]
Internal Hex drives, also known as Hex Socket 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