High quality: It is made of high quality 12.9 grade alloy steel, and the surface is treated with black oxide. They have excellent corrosion resistance, firmness, wear resistance and low temperature resistance.
Head Diameter: 8.5mm; Head Height: 5mm; Drive Type: Allen Hex Socket 4mm;
Package Included: 10 PCS Socket Head Cap Bolts/Screws (M5 x 80mm)
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