Description:

Drive Type: Hex Socket; Head Style: Hex Head; Material: 12.9 Alloy Steel. Package Content: 20Pcs x Grub Screws; Product Name: Grub Screws. Thread Size: 4x20mm/0.16"x0.8"(L*D); Weight: 29g. Main Color: Black; Thread Pitch: 0.7mm. Total Length: 20mm/0.8"; Hole Diameter: 2.5mm/0.1".