iExcell 50 Pcs M4 x 20/25/30/35/40 mm Alloy Steel 10.9 Grade Hex Socket Flat Head Cap Screws Bolts Assortment Kit
Brand: iexcell
Color: black
Categories: Industrial & Scientific, Fasteners, Screws, Socket Head Screws

✔ Meets/Exceeds: DIN7991 ✔ Screw head style: flat head, known as countersunk head, countersunk angle: 90 degree ✔ Material of Screws: 10.9 grade alloy steel, hardness: HRC 32-39 ✔ Screws rust proof: black oxide finish covered with anti-rust oil ✔ Material of Hex Key : chrome-vanadium steel, nickel plated ✔ Easy to store: these screws and hex key come in a sturdy easy-use case [ Sizes ]------[ Total Length ] M4 x 20 --------20 mm M4 x 25 --------25 mm M4 x 30 --------30 mm M4 x 35 --------35 mm M4 x 40 --------40 mm Package Contains: M4 x 20 --------10 Pcs M4 x 25 --------10 Pcs M4 x 30 --------10 Pcs M4 x 35 --------10 Pcs M4 x 40 --------10 Pcs Hex Key -----1 Pcs Total: 51 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 Flat Head: Flat head is designed to fit flush to the surface when used with countersunk holes.

✔ Screw Head Style: Flat Head ,Screw Drive Style: Hex Socket, Hex Size 2.5 mm
✔ Head Diameter: 7.8mm/0.31",Thread Size(Dia.): 4mm, Thread Pitch :0.7 mm
✔ 5 Sizes: M4 x 20 M4 x 25 M4 x 30 M4 x 35 M4 x 40
✔ Includes 1 Pcs Hex Key, Hex Size 2.5 mm, to Drives These Screws Easily
✔ Package: 50Pcs M4 Hex Socket Drives Flat Head Cap Screws and 1 Pcs Hex Key Wrench, Come in an Easy-use Separated Girds Storage Box

Head Style: Flat
Material: Alloy Steel
Thread Size: m3-0.5
Exterior Finish: Black Oxide
Drive System: Internal Hex