Self Tapping Deck Screws For Metal
Weight Range ： 0.5g–500kg
Dimensional tolerance ： ±0.1mm
Self tapping deck screws for metal is an efficient fastener specially designed for connecting metal substrates. Its biggest feature is that it combines drilling, tapping and tightening into one. When installed on mild steel plates with a thickness of no more than 3 mm, there is usually no need to pre-drill holes, and a single person can complete a fastening point in 10 seconds, increasing the overall installation efficiency by more than 50%. At the same time, its surface zinc-aluminum coating can provide more than 500 hours of neutral salt spray test protection, ensuring long-term anti-corrosion in outdoor environments.
To ensure reliable connections, construction parameters must be adjusted according to different metal properties. For example, when installing on aluminum, the torque needs to be strictly controlled between 2 and 5 N·m to prevent the material from slipping; when constructing on stainless steel, special anti-seize lubricants must be used, which can reduce the risk of cold welding seizure by 80%. Correct selection and standardized installation can keep the pull-out force of the screws in excess of 3,000 Newtons, thereby ensuring the long-term safety and stability of the metal deck structure.
Parameter
JOYEAR provides high-volume, highly efficient export solutions for industrial components to clients worldwide. Our custom metal products are expertly crafted. If you send us your design files, whether they are digital drafts or prototypes, our talented team will precisely create tangible parts that satisfy your requirements.
| Parameter Dimension | Low-Carbon Steel | Stainless Steel | Aluminum & Aluminum Alloys | Color-Coated/Pressed Steel Sheets |
|---|---|---|---|---|
| Recommended Screw Drill Bit Number | #3 or #4 | #4 or #5 | #2 or #3 | #2 or #3 |
| Pre-Drilling Required (Thickness >) | > 3.0 mm | > 1.0 mm | > 4.0 mm | Unnecessary |
| Installation Torque Range | 8 - 15 N·m | 6 - 12 N·m | 2 - 5 N·m | 4 - 8 N·m |
| Screw Core Hardness | High | Very High | Standard | Standard |
| Salt Spray Test | ≥ 500 hours | Material Inherent Corrosion Resistance | ≥ 240 hours | ≥ 500 hours |
Drawing Design & Confirm
Obtain drawings from clients or produce drawings based on their samples or specifications.
The drawings, product raw materials, surface treatment, and other details are attested to by both parties.
Advantages
Extremely fast installation
The biggest advantage of self-tapping metal deck screws is their "self-tapping and self-drilling" integrated design. When installing on mild steel plates up to 3 mm thick, no pre-drilling process is usually required.
Construction workers can complete the entire process of drilling, tapping and tightening a screw in 10 seconds using only one power tool. Compared with the traditional "drilling first, fixing later" process, this can increase the overall installation efficiency by more than 50%, significantly shorten the project period, and is especially suitable for large-scale deck or roof construction.
Excellent material penetration
The hard drill bit integrated into the front of the screw is key. A No. 4 (#4) self-drill bit can penetrate a mild steel combination (such as two layers of steel plates) with a total thickness of approximately 6.5 mm in one pass.
This strong penetrating power allows it to not only be used to fix single-layer boards, but also to directly fasten deck boards to steel beams or C-shaped purlins below, achieving a strong structural connection and simplifying the structural hierarchy of the building envelope system.
Good sealing and waterproofing effect
Most of these screws are equipped with integrated sealing gaskets (EPDM or rubber). When the screw is tightened correctly, the gasket will be compressed by about 30%-40%, forming an effective seal between the screw head and the plate.
Tests have shown that this design can withstand hydrostatic pressure of more than 1,500 Pa without leakage, which is equivalent to resisting rain driven by strong winds, thus protecting drilling cuts, preventing moisture intrusion from causing base corrosion, and improving the overall watertightness of the building envelope system.
Excellent installation fault tolerance
Even if individual screw drilling position deviations occur during installation, no complicated remediation is required. Construction workers can re-drill and tighten at a distance of at least 1.5 times the screw diameter near the original hole location.
The new screws can still form an effective connection and have minimal impact on the overall structural strength. This feature makes on-site installation more tolerant of defective products. According to statistics, the material scrap rate caused by installation errors can be reduced to less than 1%.
why choose us
Extremely efficient installation
With its own drill bit, a single person can complete drilling and fixing with a single machine, saving over 50% of working time.
Super strong connection
Special threads form a tight bite in the metal, providing a pullout force of up to more than 3,000 Newtons.
High installation fault tolerance
If you accidentally drill out of position, you can drill again 1.5 times the diameter on the side to reduce the scrap rate.
Strong adaptability to environment
Able to maintain performance at extreme temperatures from -40°C to 120°C without sealing gasket failure
Price & Order
Provide a quote, ensure that the order quantity is accurate, and include all relevant details, such as the terms of payment, the terms of trade, the type of packaging, etc.
Production & Shipping
Follow the original drawings and samples exactly when producing the goods.
It was carefully packaged and delivered to the clients following a final inspection.
★– F A Q –★
How long is the usual lead time for sampling and mass production?
- Regular sample delivery lead time is 7-15 working days. Mass production orders are usually delivered within 3-4 weeks after order confirmation, and we provide expedited service to deal with urgent needs.
How are the ownership and maintenance costs of molds regulated?
- The customer has full ownership of the mold after paying the mold fee. We are responsible for providing free daily maintenance and warehousing to ensure that the mold is always in the best condition.
How to conduct quality control and product inspection?
- We implement full-process quality control from incoming material inspection (IQC), production process inspection (IPQC) to final inspection (FQC), and can provide full inspection reports of critical dimensions.
What is the production capacity? Can we guarantee a stable supply for our needs?
- We have multiple high-speed stamping machines and automated production lines with a monthly production capacity of millions of pieces, and have dedicated production lines to ensure stable supply to key customers.
What is your response and handling process when product quality problems occur?
- We promise to respond to quality issues within 24 hours and provide an 8D report containing root cause analysis and corrective measures to ensure that the problem is resolved quickly and thoroughly.
What is your company's main export experience? Can you handle the relevant procedures for exporting to our country?
- We have rich export experience and are familiar with export customs declaration, certificate of origin and other processes, and can skillfully handle all export and transportation matters according to your requirements.
What is your communication mechanism if a delivery delay occurs?
- Once we foresee a possible delay, we will immediately proactively notify you and inform you of the reasons, measures taken, and new estimated delivery date, maintaining transparent communication throughout the process.
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