Product: 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
✔  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

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