Screws

Materials：A variety of materials for you to choose. Stainless steel titanium, aluminum, brass and carbon steel.
Craft ：A variety of surface treatments, the strength is as high as 12.9 grade.
Quality： Up to 99.88% pass rate, tolerance±0.05.
Service ：Quotation within 10 minutes, one-to-one communication with professional team.

Materials：A variety of materials for you to choose. Stainless steel titanium, aluminum, brass and carbon steel.
Craft ：A variety of surface treatments, the strength is as high as 12.9 grade.
Quality： Up to 99.88% pass rate, tolerance±0.05.
Service ：Quotation within 10 minutes, one-to-one communication with professional team.

Screws are tools that use the physical and mathematical principles of the oblique circular rotation and frictional force of objects to gradually fasten the parts of objects, and are indispensable industrial necessities.

In fact, a binding screws is a general term for a fastener. Anything with an external thread can be called a "screw", and a screw is also called a screw and a screw rod. The screw is generally called a wood screw, which is the kind with a pointed end at the front end and a larger pitch, and is generally used to fasten wooden parts and plastic parts; Generally used to fasten metal and machine parts.

Our factory has cooperated with many large-scale foreign trade exporters in China for many years, and has its own design team, a newly expanded factory, and imported equipment and machines. Specially customized production of non-standard special screws for customers, which are used in heating stoves, ovens, etc., and are highly praised and satisfied by customers.

The product is made of 12.9 grade high-strength carbon steel material, 12.9 Socket Cap Screws which has the characteristics of high toughness, good cold and hot processing performance, and excellent machinability. Wide range of applications, suitable for connection of steel frame structures, braking systems and important structures subject to dynamic loads.

1. Size of self tapping screw: It’s up to the client (as your requirement)
2. Length of self tapping screw: It's up to the client.
3. Material of self tapping screw:Stainless steel, Carbon steel, Brass, Bronze, Aluminum Alloy, Iron, Alloy steel, Titanium, Titanium Alloy
4. Application of self tapping screw: Building, Automobile Industry, Furniture, Sanitary, Electronics, Traffic.
5. Surface treatmen of self tapping screw: Bronze, Bronzy, redbronze, Chromeplate, colorpainted, Nylok, ruspert, Magni, Absorber Oil, Hardened, phosphate(black,Gray), Black, ZincPlated,(green,black,white,blue,yellow,ROHS), Rainbow, Plain, Nickel(black,white), Electrophoresis, Dacromet.

Screws are objects used to connect objects in our daily life. Generally, the top of screws will protrude and connect objects, which will make the surface not flat enough. The countersunk head screws can sink to the surface to make the surface of the object more smooth and clean. It can not only ensure the installation accuracy, but also ensure the structural strength. This is why most of the countersunk head screws are chosen in daily life. Generally, hard objects need to be drilled at the corresponding position of the countersunk phillips head screw. In short, the "countersunk head" means that after the head of the screw is installed, the surface of the object can be more flat and beautiful, which is convenient for daily use. Therefore, countersunk head screws have more advantages than other screws. If the countersunk head screw is not specially stated, it generally refers to the mechanical tooth screw (the kind that matches the nut), and the corresponding object must have internal threads.

The ball head screw includes a polished rod, one end of the polished rod is fixedly connected with a screw rod, the side end face of the screw rod is fixedly connected with a thread, the side of one end of the screw rod away from the polished rod is provided with a chamfer, and one end of the polished rod away from the screw rod is fixedly connected with a Hexagonal head, the joint between the polished rod and the hexagonal head is provided with a second inner fillet, the end of the hexagonal head facing away from the polished rod is fixedly connected with a ball head, and the side end face of the ball head is provided with a first inner rounded corner and a third inner rounded corner. rounded corners, and the third inner rounded corner is set on the side end face of the ball head close to the hexagonal head. Put the ball head into the reserved groove of the fixing piece, the screw is connected with the connecting piece through the thread, and the polished rod plays the role of support and reinforcement to prevent the screw In case of breakage and bending, the ball head adopts a spherical design, which can make the connecting piece rotate in the reserved slot, and the rotation effect is good, and the chamfering prevents the screw from burr in production, which prevents the connecting piece from being inserted smoothly.

1. Pre-embedded screws are mainly used for the suspension and fixation of air-conditioning pipes, water pipes, electric pipes, ceilings, etc.
2. Twisted flat head non-standard screws can be used on cement concrete, brick walls and hollow bricks to fix bathroom equipment.
3. Internal non-standard screws with internal teeth are used for fixing marble, water pipes, electric pipes and angle irons.
4. Sleeve type non-standard screws are mainly used for fixing sound insulation walls and bathroom equipment.
5. Non-standard screws with external force and internal teeth are mainly used for hanging pipes of water pipes, electric pipes and air conditioners, as well as fixing various angle irons and section steels.
6. Twisted casing non-standard screws are used to fix lighting, light steel dragon skeleton and bathroom equipment.
7. Hollow non-standard screws are suitable for fixing door frames, cabinet frames, bathroom accessories and wall accessories.