Product Details:Material: Carbon Steel; EPDM RubberThread Size: #12x3/4"(ST5.5x19mm)Thread Pitch: 1.8mmHex Head Size: 8mm x 5.4mm/ 0.31" x 0.21"(Hex Width*T)Flange Dia.: 10.5mm/ 0.41"Washer Size: 5.5mm x 19mm/ 0.22" x 0.75"(ID*OD)Screw Drilling Range(Plate Thickness): 1.75-5.25mm / 0.07inch-0.21inchPackage Content: 50pcs x Hex Washer Head Self Tapping ScrewsMaterial - Constructed with high strength carbon steel material with galvanized surface treatment the hex washer head self-tapping screw is of strong durability not easy to deform rust and corrosion resistant and can be applied for a long time.Feature - The metal sheet screws are designed with an external hex drive style with rubber washer preventing slippage and ensuring a strong hold.
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