uxcell M4 x 25mm Full Thread Hex Socket Cap Head Screws Bolts Black 50 Pcs Drive Type: Hex Socket; Head Style: Socket Cap Head; Material: Carbon Steel Package Content: 50(+/-2%) x Hex Socket Screw; Product Name: Hex Socket Screw; Thread Size: M4/0.16" Weight: 136g; Main Color: Black; Thread Pitch: 0.7mm Hex Width: 4mm/0.16"; Thread Length: 25mm/1" Total Size: 29 x 7mm/1.1" x 0.28"(L*Max.D); Head Thickness: 4mm/0.16"