Description: A set screw is a type of screw generally used to secure an object within or against another object. The set screw passes through a threaded hole in the outer object and is tightened against the inner object to prevent it from moving relative to the outer object. It exerts compressional or clamping force through the bottom tip that projects through the hole. The Cup Point has a special cup section supplied on the end of the threaded member having a depression in the end to reduce the area in contact with the surface which increases its holding and locking power under pressure.     Specification: Model: MXSH4;  Size: M3 / M4 / M5;  Material: 304 Stainless Steel;  Color: Silver;  Screw Drive Type: Hex Socket;  Screw Point Type: Cup Point;     Features: - Made of 304 stainless steel, ensure its high hardness and corrosion resistance, anti-rust and durable in many environments.  - A Cup point surface is rounded so that a small surface area is in contact, but it does not have extremely high stress at one point like that of a cone point. Durability studies show that the cup point offers superior resistance to wear while maintaining a strong grip.  - Wide application: Suitable for door handles, faucet, light fixture, knobs, armament repair, plumber and other small repairs around the shop, garage or home.  - Comes with a delicate plastic organizer box for storage, also suitable for collecting your small accessories.     Package Included: Item:Length; Quantity;  M3 Grub Screw:3mm; 20;  M3 Grub Screw: 4mm; 20;  M3 Grub Screw:5mm; 20;  M3 Grub Screw: 6mm; 20;  M3 Grub Screw:8mm; 20;  M4 Grub Screw:4mm; 20;  M4 Grub Screw:5mm; 20;  M4 Grub Screw: 6mm; 20;  M4 Grub Screw:8mm; 20;  M4 Grub Screw:10mm; 20;  M5 Grub Screw:4mm; 20;  M5 Grub Screw:5mm; 20;  M5 Grub Screw:6mm; 20;  M5 Grub Screw:8mm; 20;  M5 Grub Screw:10mm; 20;  Total Quantity: 300