M4x12mm Hex Socket Head Knurled Cap Screws Bolts Nuts Set 20Pcs Weight: 53g; Fastener Type: Socket Screw; Main Color: Silver Tone Thread Pitch: 0.7mm; Total Length: 16mm/0.63"; Head Size: 7x4mm/0.28"x0.16"(D*H) Hex Nut Size: 7x3mm/0.28"x0.12"(W*T); Hex Socket Size: 3mm/0.12"; Drive Type: Hex Socket Head Style: Socket Cap Head; Material: Stainless Steel; Package Content: 20Sets x Hex Socket Cap Screws Product Name: Hex Socket Cap Screws; Thread Size: M4x12mm/0.16"x0.5"(D*L)