500PCS Black Zinc Plated Cup Head Hex Socket Machine Screw Cylindrical Head Bolt Cup Head Screw M3 screw set

This computer screw assortment kit gives you 420 black zinc plated carbon steel fasteners in 10 common PC hardware types — flat head, pan head and truss head screws, hex standoffs, thumb screws and flat washers — sorted into a 10-compartment clear case. Threads are clean and well cut, so they start easily and hold firm. One kit covers PC case screws and motherboard standoff screws for motherboard installation, case assembly, cooling fan mounting, HDD and SSD fitting, power supply mounting and expansion card fixing. Box 125 × 64 × 20 mm, 350 g. In stock; OEM/ODM, custom label, logo and retail packaging available.

This flat head self tapping screws set gives you 400 304 stainless steel self tapping screws in 9 popular metric sizes — M3, M3.5 and M4, three lengths each — with a countersunk self tapping screw assortment sorted into a 9-compartment clear case. The Phillips drive resists slipping, the sharp point bites straight into wood and plastic, and the deep thread holds firm; the countersunk flat head sits flush for a clean finish. 304 stainless steel resists rust indoors and out. Use them for furniture assembly, cabinet hinges, plastic parts and home repairs. In stock; OEM packaging, box, label and in-box assortment customizable.

400-piece black self tapping screws set — 9 metric sizes M3 to M5 (10-25 mm) in black zinc-plated carbon steel. These washer head self tapping screws have an integrated washer head and Phillips drive, sorted in a 9-compartment case; the coarse thread and sharp gimlet point cut their own threads in wood, plastic and thin sheet metal, usually without a pilot hole. Use this self tapping screw kit for automotive trim, light-gauge panels and enclosures, plastic housings and covers, and everyday DIY. In stock; custom label, packaging, box and in-box assortment available.

300 piece cone point set screw kit in 304 stainless steel — 10 metric sizes M3 to M8 (50/50/40/40/30/30/20/20/10/10 pcs) plus 5 hex keys in a 10-compartment case. The sharp cone point bites into the shaft for the strongest vibration-resistant grip; the headless, fully threaded grub screw body sets flush below the surface; the internal hex socket takes high torque without cam-out. Made to DIN 914 / ISO 4027. Use these stainless steel set screws on shaft collars, pulleys, gears, handles, knobs, 3D printers and small machinery. In stock; OEM private label, custom packaging, box, label and in-box assortment customizable.