M3x40mm 0.5mm Pitch Bolts Socket Cap Head Hex Key Screws 30pcs Product Name : Hex Socket Cap Screw;Material : 304 Stainless Steel;Color : Silver Tone Screw Type : M3x 40mm;Thread Diameter : 3mm/ 0.12";Thread Length : 40mm/ 1.6" Thread Pitch : 0.5mm;Hex Width : 2.5mm/ 0.1" Head Size : 5.4 x 3mm/ 0.21" x 0.12" (D*H);Overall Length : 43mm/ 1.7" Weight : 64g;Package Content : 30 x Hex Socket Cap Screws