Aluminum Alloy Auto Parts Nuts

The aluminum alloy hexagonal double-ended screws are made of high-strength aluminum alloys (such as 6061-T6/7075). The conical screw design enhances the thread grip force and shock resistance, and the hexagonal head structure at both ends facilitates bidirectional installation. The middle through-hole reduces the weight by more than 30%, and can integrate wiring or ventilation functions. The surface is treated with anodizing, which is corrosion-resistant and insulating, suitable for lightweight scenarios such as aviation and new energy vehicles. It complies with ISO/DIN standards and supports non-standard customized conical ratios (1:10/1:16) and hole diameter sizes.

Product Features:

1. Tapered thread design: The screw adopts a 1:10 or 1:16 taper, enhancing the tightness of the thread engagement, preventing loosening and vibration, and is particularly suitable for high-vibration environments (such as new energy vehicles, drones).

2. Hollow weight reduction structure: The design with an intermediate through hole reduces weight by 30%-50%, and can integrate cable routing or gas/liquid channels, improving the functional integration.

3. Bidirectional hexagonal head installation: Both ends have hexagonal heads that support two-way wrench operation, making installation flexible and suitable for narrow spaces or scenarios requiring bilateral tightening.

4. High-strength lightweight: Using 6061-T6/7075 aluminum alloy, with tensile strength ≥ 300 MPa, the weight is only 1/3 of that of steel screws, suitable for fields that are sensitive to weight (such as aerospace).

5. Adaptable to harsh environments: Working temperature range: -50℃ to 150℃. **Passes salt spray test for ≥ 500 hours (316 stainless steel bushings are available, further enhancing corrosion resistance).

Product Application:

1. New energy vehicles and electric vehicles: Application of battery packs fixation, motor housing connection, lightweight body structure

2. Aerospace and unmanned aircraft: Application of aircraft skins, wing structures, unmanned aircraft frame assembly

3. Industrial robots and automation equipment: Application of mechanical arm joints, servo motor installation, precision transmission components

4. High-end bicycles and motorcycles: Application of carbon fiber frame connection, suspension system tightening

5. Energy and power equipment: Application of solar support structures, wind power equipment, high-voltage electrical cabinets

6. Medical and precision instruments: Application of CT machines, surgical robots, laboratory equipment

7. Ships and marine engineering: Application of lightweight ship body structures, deck equipment fixation

Product Advantages:

1. Material Advantage: Lightweight design significantly reduces structural weight.

2. Hollow Structure: The central through-hole design further reduces weight (weight reduction of 30%-50%), and can integrate cables or fluid channels, optimizing space utilization.

3. Anti-loosening and shock resistance: 1:10 or 1:16 taper threads provide progressive engagement, distributing stress evenly. The first three sets of threads can bear over 70% of the load, significantly reducing the risk of loosening in vibration environments.

4. Improved Sealing: The taper fit can form a metal seal， suitable for low-pressure gas/liquid systems (such as battery cooling pipelines).

5. Bidirectional Operation: The six-sided head supports bilateral wrench tightening， suitable for narrow spaces or blind assembly scenarios (such as robot joints).

6. High Torque Capacity: The hexagonal head is cold forged strengthened， with an anti-torsion strength of ≥8.8 grade， avoiding the risk of slip.

7. Cable Management: The through-hole can accommodate sensor wire bundles， optical fibers， etc.， reducing external wiring clutter (such as drone frames).

8. Cost Optimization: Aluminum alloy material reduces transportation and installation costs， and the hollow structure reduces material usage.

9. Standard Certifications: Compliant with ISO 14583， DIN 7337 and other international standards， supporting RoHS/REACH environmental requirements.

FAQ

Q1: What is the material of the aluminum alloy hexagonal double-ended screws? How corrosion-resistant are they?

A1: Commonly used are 6061-T6 (general type) and 7075-T6 (high-strength) aluminum alloys. Their tensile strengths reach 310 MPa and 560 MPa respectively.

Q2: What are the advantages of taper threads? How to choose the taper ratio?

A2: Anti-loosening: The risk of loosening is reduced by over 60% in vibration environments.

Sealing: Can be used in low-pressure fluid systems without the need for additional sealing rings.

Q3: Does the diameter of the hollow through-hole affect the strength? What is the maximum hole diameter limit?

A3: Regarding the impact on strength: When the hole diameter is ≤ one-third of the screw diameter, the strength loss is less than 10% (verified by FEA)

Maximum hole diameter: The standard product supports Φ2mm to Φ12mm (M6 to M20 specifications), and non-standard can be customized up to Φ20mm (requires strength verification).

Q4: Is the hexagonal double-headed design prone to thread breakage? How should it be correctly installed?

A4: Anti-slip design: The hexagonal head is cold forged for reinforcement, with a hardness of ≥ 80HRB. It comes with a dedicated installation sleeve (to prevent rotation damage).

Installation suggestion: Use a torque wrench.

Auto Parts Nut