Stainless Steel Expansion Screw Sinking Head Cross Internal Forced Bolt

Concrete Screw Anchor Description

The fixation of the expansion screw is to use the wedge-shaped slope to promote the expansion to generate friction and grip force to achieve the fixation effect. The screw is threaded at one end and tapered at the other end. Wrapped with an iron sheet (some are steel pipes) on the outside, there are several cuts in the half of the iron sheet cylinder (steel pipe), stuff them together into the hole punched in the wall, and then lock the nut, the nut pulls the screw outward, and pulls the taper into the iron sheet cylinder , the iron cylinder is stretched open, so it is tightly fixed on the wall, and is generally used for fastening fences, awnings, air conditioners, etc. on cement, bricks and other materials. When the nut is tightened, the screw moves outward, and the axial movement of the thread causes the cone to move, thereby forming a large positive pressure on the outer peripheral surface of the expansion tube, and the angle of the cone is small, so that the wall, the expansion tube Friction self-locking is formed between the cone and the cone, and then the fixing effect is achieved.
Features:
1. Fine workmanship: smooth surface without burrs, strong and durable.
2. Thickened casing: better expansion effect, stable and reliable, uniform force, and stronger load-bearing capacity.
3. Corrosion resistance and no rust: 304 stainless steel material is used, which is anti-rust and corrosion-resistant, and can also be used in humid environments.

OEM & ODM

Bestsuppliers offers OEM and ODM service, with more 20 years of successful sourcing experience over the whole china we have already obtained a lot of suppliers resources in the sector of concrete screw anchor. All of our collaborative manufacturing partners are top selected factories with professional concrete screw anchor manufacturing experiences. If you have any special customization needs for concrete screw anchor products,please reach us by submitting the inquiry forms. We are here ready 24 hours  to make your idea a value added product. 

Frame Fixing Screw Production Process

1. Mold manufacturing: 

Calculate and record the size of the expansion bolt parts that need to be manufactured, and then manufacture the corresponding molds according to the recorded size.
 

2. Parts manufacturing: 

Heating the raw materials used for each part, then pouring the molten raw materials into the mold, and removing the parts to be processed after cooling down.

3. Parts processing: 

Machining each part to obtain the semi-finished products of the required parts, and galvanizing the bolt rod, bolt sleeve, nut and gasket at the same time.
 

4. Grooving: 

Cut the bolt sleeve into an opening groove.
 

5. Assembly of parts: 

Arrange the parts, and then assemble them according to the order of parts assembly, and carry out the corresponding test after the assembly is completed.

Frame Fixing Screw Application

1. Air conditioner: acid and alkali resistant, can be used for external frame fixing.
2. Anti-theft doors and windows: durable.
3. Canopy: strong oxygen resistance.
4. Engineering construction: environmental protection and pollution-free.

Product Category

Company Profile

If you are interested in our products，Please feel free to contact us!

FAQ

1.What types of hardware, tools, and locks do you supply?
Answer: We provide a diverse range of hardware and tools, including a variety of locks such as padlocks, door locks, and specialty locks. Our tools cover both hand tools and power tools for various applications.
2.Can I request product samples before placing a bulk order?
Answer: Yes, we encourage clients to request samples to evaluate the quality, durability, and functionality of our hardware, tools, and locks before committing to a larger order.
3.What is the minimum order quantity (MOQ) for your products?
Answer: The MOQ varies depending on the type of product. Please contact our sales team for specific information about MOQs for locks, tools, or other hardware.
4.How do you ensure the quality of your tools and hardware?
Answer: We implement stringent quality control measures at every stage of production to ensure that our locks and hardware meet the highest standards. Our team conducts thorough inspections and testing.