Detail 100pcs M3 Thread Insert Lock Fastening Screw Nylon Hex Nuts Black With 50pcs M3x3mm Stainless Steel Hex Socket Set Ca2 Hand Instrument Set: 50(+/-2%) x Set Screws & 100 x Hex NutsDrive Type: Hex SocketHead Style: Hex Screw Made of stainless steel, hex screw set screws. Often used to hold a pulley, sprocket or other parts from rotating in relation to the shaft. Product Name: Hex Nut + Set ScrewsThread Diameter: 2.7mm/0.1 inchThread Size(a): M3Hex Height(B): 2.5mm/0.1 inchHex Width(C): 5.5mm/0.2 inchPitch: 0.5mm/0.02 inchMain Color: Black+SilverMaterial: Stainless Steel + NylonThread Size: 3x3mm/0.12x0.12 inch (DxL)Thread Pitch: 0.5mmTotal Length: 3mm/0.12inchBore Diameter: 2mm/0.08inchWeight: 7g+10gPackage Contents:50(+/-2%) x Set Screws100 x Hex NutsOnly the above package contents, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.