High quality: It is made of high quality 10.9 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: 9.5mm; Head Height: 2.75mm; Drive Type: Allen Hex Socket 3mm.
Package Included: 50 PCS Button Head Socket Cap Screws (M5 x 40mm)
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