Flat gasket, mainly made of iron sheet, is generally in the shape of a flat gasket with a hole in the middle
Increase the contact area between screw and machine. Eliminate the damage of the spring pad to the machine surface when unloading the screws. It must be used with a spring pad and a flat pad, with the flat pad next to the surface of the machine and the spring pad between the flat pad and the nut.
Chemical anchor is a new type of fastening material, which is composed of chemical agent and metal rod. Can be used for all kinds of curtain wall, marble dry hanging construction after the installation of embedded parts, also can be used for equipment installation, highway, bridge guardrail installation;
Springwashersare widely used in load-bearing and non-load-bearing structures of general mechanical products. They are characterized by convenient installation and suitable for the parts with frequent installation and disassembly. Spring washers in the screw industry, often called spring gaskets.
Mainly used in concrete and dense natural stone, steel structure, railing, elevator lines, machines, brackets, doors, stairs, exterior wall finishes, Windows, etc., suitable for the role of medium load fixing
A flange nut is a nut that has a wide flange at one end and can be used as an integral washer. This is used to distribute the pressure of the nut over the fixed part, thereby reducing the possibility of damage to the part and making it less likely to come loose due to the uneven fastening surface. Most of these nuts are hexagonal, made of hardened steel and usually coated with zinc.
Fastening nut, self – tightening nut is a common type of fastening nut. Including mechanical anti – loose, riveting and punching anti – loose, friction anti – loose, structural anti – loose. Nowadays, self-locking fasteners are widely used to prevent loose thread: 2. Use various self-locking bolts or ring-grooved rivets to realize self-locking; 3. All kinds of spring washers are installed in the thread connecting pair to realize thread self-locking;
Hexagon nuts and screws, bolts, screws with the use of the connection fastening parts. Ordinary hex – is widely used, the characteristic is fastening force is bigger, the disadvantage is that when installation should have enough space, can use when installation live wrench, wrench, open end wrench or glasses all wrench above takes a lot of operating space through the inside of the thread, the same specification nuts and bolts to connect together