Standard Screw Type

Standard parts screws include bolts, screws, studs, nuts, machine screws, self-tapping screws, washers, pins, rivets, bezels ten categories. It is a basic part widely used in all aspects, and its function is to act as a joint fastening. The joint form can be divided into removable joints (with threaded fasteners such as bolts, nuts) and permanent joints (with rivets).

1. Bolt:

(1) Hexhead Bolts: Specificationd d -M5 to M36, L-8 to 300mm.

(2) Semi-circular head square neck bolts: specifications d -M6 to M16, L 30 to 160mm.

(3) High-strength hexagonal bolts: specifications d -M12 to M24, L-35 to 240mm.

2. Studs: Double-headed studs and iso-long double-headed studs: specifications d-M5 to M42, L-16 to 300mm.

3. Machine screws: specifications d -M2 to M10, L-3 to 100mm.

4. Nut:

(1) Hexagonal mother: specification d s M25 to M48.

(2) High-strength hexagonal nuts: specifications: M12 to M42.

5. Self-tapping screws: specifications d -M2.5 to M6, L-6 to 40mm.

6. Washer:

(1) Flat washers: specificationd d - 2 to 30.

(2) Spring washers: specifications d - 2 to 48.

7. Cylindrical pin:

(1) cylindrical pin, cone pin: specification d - 1 to 30, L - 4 to 140mm.

(2) Open pin: specificationd d to 2, L - 6 to 200mm.

8. Rivets: specificationd d - 1.6 to 8, L - 3 to 50mm.

9. Gear:

(1) cone pin locking gear ring, screw locking gear ring, specification d - 8 to 30.

(2) hole with elastic gear, bearing elastic gear: specification d - 3 to 75.