Description
Description: These Hex Socket Screws are made of 12.9 grade alloy steel with an oxidation finish that resists rust and corrosion ，wear-resistant and moisture-proof, not easy to rust, and have a longer life. The surface is oxidized and blackened, and the standard cup head has a hexagon socket. The surface is smooth and uniform, and the fastening effect is good. Deep thread, uniform pitch, smooth surface . Apply to confined areas where the head needs to be flush or below the surface. They can be widely used in household and office appliances, machinery, furniture, communication equipment, ship assembly or other machinery industries, etc. Specifications: Type: Button Head Socket Cap Screws with Nuts Material: 12.9 Class Carbon Steel Surface: Black Oxide Finish Size: M3 M4 M5 Thread Length: 8mm, 12mm, 16mm, 20mm Package Includes: Total 560PCS, includes 280PCS Screws + 280PCS Nuts 35pcs — M3x8mm 35pcs — M3x12mm 35pcs — M3x16mm 35pcs — M3x20mm 20pcs — M4x8mm 20pcs — M4x12mm 20pcs — M4x16mm 20pcs — M4x20mm 15pcs — M5x8mm 15pcs — M5x12mm 15pcs — M5x16mm 15pcs — M5x20mm 140pcs — M3 Nuts 80pcs — M4 Nuts 60pcs — M5 Nuts Caution: Products contain small parts, keep away from children to prevent mistaken swallow!