uxcell 1.25mm Pitch M8x45mm Socket Head Screws Hex Key Bolts 4 Pcs Product Name : Hex Socket Head Cap Screw;Material : Stainless Steel;Color : Gray Screw Type : M8x 45mm;Thread Diameter (d) : 8mm/ 5/16";Thread Length (L) : 45mm/ 1.8" Thread Pitch : 1.25mm;Hex Width (s) : 6mm/ 0.24" Head Size (D*k) : 13 x 8mm/ 0.5" x 0.3" (D*H);Overall Size : 52 x 13mm/ 2" x 0.5"(L*D) Weight : 45g;Package Content : 4 x Hex Socket HeadCap Screws