iExcell 125 Pcs M3 x 8/10/12/16/20 mm Stainless Steel 304 Hex Socket Button Head Cap Screws Bolts Assortment Kit

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About IExcell 125 Pcs M3 X 8/10/12/16/20 Mm Stainless

✔Meets/Exceeds: ISO 7380 ✔Screws Head Style: Button Head ; Screw Drive Style: Hex Socket, Known as Internal Hex Drives Hex Size: 2.0 mm ✔Head Diameter : 5.5mm;Head Height : 1.6mm; Thread Pitch : 0.5mm ✔M3 x 8mm means : Metric screws, Thread diameter size 3 mm, Thread length 8 mm [ Sizes ]-----[ Thread Length ]----[ Total Length ] M3 x 08mm--------8mm-------------9.6mm M3 x 10mm--------10mm-----------11.6mm M3 x 12mm--------12mm-----------13.6mm M3 x 16mm--------16mm-----------17.6mm M3 x 20mm--------20mm-----------21.6mm Package Contains: M3 x 6mm --------25 Pcs M3 x 8mm --------25 Pcs M3 x 10mm -------25 Pcs M3 x 12mm -------25 Pcs M3 x 16mm -------25 Pcs Hex Key------------1 Pcs Total: 126 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 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 or socket. They are fastened with an Allen , which is also called a hex or hex key