iExcell 25 Pcs M6 x 2530354045 Stainless Steel 304 Hex Socket Head Cap Screws Bolts Assortment

?Meets/Exceeds: DIN 912 ?Stainless steel 304, high strength and anti-corrosion in various environments ?Screw Head Style: Socket Cap; Screw Drive Style: Hex Socket , known as Internal Hex drives ?Easy to store : These screws come in an easy-use separated girds storage box [ Sizes ]------------Thread Length-------Total Length M6 x25mm-----------25mm--------------31mm M6 x30mm-----------30mm--------------36mm M6 x35mm-----------35mm--------------41mm M6 x40mm-----------40mm--------------46mm M6 x45mm-----------45mm--------------51mm Package Contains: M6 x25mm-----------5 Pcs M6 x30mm-----------5 Pcs M6 x35mm-----------5 Pcs M6 x40mm-----------5 Pcs M6 x45mm-----------5 Pcs Total: 25 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 screws Socket cap screws, also known as Allen head screws, 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.