Metal Binder Screw
Weight Range ： 0.5g–500kg
Dimensional tolerance ： ±0.1mm
Please provide product specifications so that we can offer specific pricing and MOQ.
Metal binder screw is a threaded fastener made of metal and is often used in the internal assembly of electronic equipment and precision instruments. According to the GB/T 3098.1 standard, the tensile strength of grade 4.8 carbon steel is not less than 400 MPa. In the 72-hour neutral salt spray test, no matrix corrosion or red rust will appear on the galvanized surface, and it is suitable for indoor normal humidity environments.
Torque control during assembly directly affects locking quality. The cross-slot design complies with ISO 8764 standards, and the torque transmission efficiency is not less than 80%. The flatness of the supporting surface is controlled within 0.1 mm, and the contact area is increased by 20% compared with ordinary screws, which can avoid damage to thin-walled plastic parts due to excessive local pressure.
Parameters
JOYEAR is a family-owned business that provides high-volume, highly efficient export solutions for industrial components to customers worldwide. Our custom metal products are expertly crafted. Send us your design files, whether they are digital drafts or prototypes, and our knowledgeable staff will precisely create tangible parts that satisfy your requirements.
| Comparison Dimension | Carbon Steel | Stainless Steel | Brass | Aluminum Alloy |
|---|---|---|---|---|
| Tensile Strength | ≥420 MPa | ≥520 MPa | ≥240 MPa | ≥200 MPa |
| Density | 7.85 g/cm³ | 7.93 g/cm³ | 8.50 g/cm³ | 2.70 g/cm³ |
| Salt Spray Test | ≥ 12 hours | ≥ 200 hours | ≥ 48 hours | ≥ 96 hours |
| Appearance / Color |
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★ Our product range includes:
►Materials: Carbon steel / Mild steel / Structural steel / Stainless steel / Aluminum / Copper, etc.
►Forms: Sheets / Profiles / Tubes / Round bars / Flat bars / Square bars, etc.
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
Stable torque bearing capacity
Take M4 x 10mm pan head Phillips screws as an example. Its breaking torque has been measured up to 3.2 N·m. This is 1.5 times that of ordinary self-tapping screws. When the automated production line is locked, higher speeds are allowed. The assembly efficiency is improved and the teeth are less likely to slip.
Efficient assembly
Cross recess (PH2) design complies with ISO 8764 standard. When paired with an electric screwdriver, the torque transmission efficiency can reach 85%. Tests show that at a locking speed of 2,000 rpm, it can be locked 500 times continuously. The notch wear is less than 0.1 mm, effectively extending the life of the bit.
Precise head bearing surface design
The flatness of the supporting surface is controlled within 0.05 mm. The contact area is 22% larger than that of ordinary screws. Taking the M3 pan head screw as an example, its supporting surface can withstand a pressing force of 1.2 kN. When locking thin-walled plastic parts or PCB boards, excessive local pressure can be avoided to prevent dents or micro-cracks.
Stable friction coefficient control
The surface is coated with a micron-level lubricating layer with a thickness of 3-5 μm. The friction coefficient is stable in the range of 0.15-0.28. Compared with non-lubricated screws, its fluctuation range is reduced by 60%. Torque control is more precise during automated assembly, which can effectively avoid insufficient locking force or overload.
why choose us
Strong corrosion resistance
- Stainless steel material salt spray test for more than 200 hours. The surface does not rust and is suitable for outdoor, kitchen and coastal areas. No need for frequent replacement, low maintenance cost.
Accurate bearing surface
- The flatness of the supporting surface is controlled within 0.1 mm. The contact area is 20% larger than that of ordinary screws. When locking thin-walled plastic parts, it can prevent excessive local pressure and avoid cracks.
Strong versatility
- Dimensions strictly follow DIN and GB standards. The head tolerance is controlled within ±0.2 mm. The same screw can be compatible with embedded nuts of different brands, simplifying the purchasing process.
Lightweight advantage
- The density of aluminum alloy screws is only 2.70 g/cm³. 60% lighter than carbon steel, which can significantly reduce the weight of equipment. Drones and handheld products have longer battery life and better portability.
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.
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