Precision CNC machining of custom aluminum bolts and screws based on your drawings and specifications. Ideal for non-standard parts, prototypes, and production orders.
We offer three specialized anodizing types, each designed to address specific performance and aesthetic requirements. All our anodizing processes adhere to strict international standards (ISO 1461, ASTM B580), ensuring consistent quality, durability, and compatibility with our aluminum bolts and screws.
Clear Anodizing: Preserves the natural silver luster of aluminum while forming a thin, transparent protective layer (5-20 microns). This option enhances corrosion resistance without altering the fastener’s dimensional accuracy, making it perfect for precision applications such as electronic equipment, medical instruments, and aerospace components where a subtle, professional finish is required.
Colored Anodizing: Achieves vibrant, long-lasting colors (including black, blue, red, gold, and custom shades) by dyeing the porous anodized layer before sealing. This treatment retains all the functional benefits of anodizing—corrosion and wear resistance—while adding aesthetic value. It is ideal for outdoor furniture, sports equipment, consumer electronics, and decorative applications where visual appeal matters.
Hard Anodizing: Creates a thick, dense oxide layer (20-100 microns) with exceptional hardness and wear resistance—exceeding the performance of standard anodizing. This option is engineered for high-stress applications, including industrial machinery, outdoor power equipment, aerospace components, and any scenario where fasteners are exposed to friction, impact, or harsh chemicals.
Material Preparation & Selection: First, we select high-quality aluminum alloy raw materials (as detailed below) and cut them into appropriate-sized bar stock, ensuring the material texture is uniform and free of defects to lay the foundation for high-quality processing.
CAD Design & CNC Programming: Our engineers design the product structure based on customer requirements or standard specifications, then convert the CAD drawings into G-code that CNC machines can recognize. The program is optimized to determine tool paths, cutting speed, and feed rate, ensuring efficient and precise processing.
CNC Turning & Milling: The aluminum bar stock is clamped on the CNC lathe or Swiss-type turning machine. The machine automatically executes turning, milling, drilling, and other operations according to the program. We use two-blade or three-blade carbide tools with anti-stick coatings to reduce cutting resistance and avoid chip adhesion, ensuring smooth surface finish.
Thread Processing: Threads are formed through either cutting or rolling processes. Rolling forming is preferred for high-stress applications as it enhances thread strength and fatigue resistance, while cutting is used for custom thread profiles. Each thread is processed with high precision to ensure good fit with nuts or threaded holes.
Finishing & Deburring: After machining, the products go through deburring to remove sharp edges and excess material. We then perform surface treatments such as anodizing to enhance corrosion resistance and improve appearance, making the products suitable for harsh environments.
Quality Inspection: Each batch of aluminum bolts and screws is inspected using precision tools such as coordinate measuring machines (CMM), thread gauges, and calipers to check dimensions, thread accuracy, and surface quality. Only products that pass all inspections are delivered to customers.
| Grades | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Key Properties | Suitable Applications |
|---|---|---|---|---|---|
| 1100 | 110 - 130 | 35 - 50 | 35 - 45 | Good electrical and thermal conductivity, low strength, excellent machinability and corrosion resistance | Conductive and thermal conductive occasions with low strength requirements, such as electronic component connections |
| 6061-T6 | 310 - 380 | 276 - 345 | 8 - 15 | General-purpose, excellent corrosion resistance, good strength-to-weight ratio, easy to machine and anodize | Structural components, racks, brackets, automotive engine components, chassis, and general equipment enclosures |
| 6063-T6 | 240 - 280 | 210 - 240 | 10 - 18 | Good surface finish, excellent corrosion resistance, moderate strength | Door and window frames, display racks, marine engineering structural connections, outdoor facilities |
| 7075-T6 | 540 - 580 | 483 - 517 | 5 - 10 | High strength (close to steel), excellent fatigue resistance, good corrosion resistance | Aerospace components, high-performance sports equipment, aviation models, high-end optical equipment, drone propellers |
| 2024-T4 | 420 - 480 | 276 - 310 | 12 - 20 | High strength, good fatigue resistance, suitable for high-stress applications | Aerospace and automotive high-stress components |
The core structure of the entire machine relies on aluminum screws and bolts for assembly: frame and arm fixation, motor base fastening, gimbal bracket connection, landing gear installation, flight controller housing locking, and battery pressure plate fixation. Core Adaptation Advantages: Significantly reduce weight to improve endurance and flight flexibility, resist high-frequency vibration without loosening, no rust hidden dangers, non-magnetic property does not interfere with compass signals. Aluminum bolts made of 7075 material can achieve high-strength load-bearing connection, suitable for various aerial photography, racing drones and industrial inspection UAVs.
Application Scenarios for Special Aluminum Bolts and Aluminum Machine Screws: Battery pack case locking, battery module pressure plate fixation, motor end cover assembly, electronic control housing fastening, water-cooled heat dissipation component connection, internal structure fixation of charging piles, and lightweight body connectors. Core Adaptation Advantages: Help reduce the weight of the whole vehicle, directly improve the endurance capacity. Excellent thermal and electrical conductivity adapts to the working conditions of on-board electronics. Non-magnetic property does not interfere with the operation of on-board electronic equipment. It can withstand the high-temperature and humid environment of the engine compartment to ensure long-term stable use.
A large number of supporting aluminum screws and aluminum hexagon head bolts are used: base station radiator fastening, radio frequency cavity fixation, antenna bracket installation, shield locking, communication chassis assembly, and optical module structure fixation. Core Adaptation Advantages: Non-magnetic property can avoid interfering with signal transmission, high thermal conductivity helps equipment heat dissipation, resistant to salt spray and corrosion outdoors. After anodizing treatment, it can achieve insulation protection and eliminate short-circuit hidden dangers, suitable for the long-term outdoor operation needs of outdoor base stations.
Special Aluminum Hexagon Socket Bolts and Aluminum Screws for Equipment Structure: Robot arm housing fixation, joint module assembly, servo motor installation, linear module bracket connection, lightweight frame fastening, and precision fixture assembly. Core Adaptation Advantages: Reduce the weight of moving parts, effectively improve the movement speed and load capacity of the equipment, no rust and no frequent maintenance during long-term reciprocating movement. High-precision thread fit ensures the positioning accuracy of the equipment, adapting to the efficient operation needs of automated production lines.
High Precision CNC Machining: Adopting advanced CNC equipment and strict processing standards, tolerances up to ±0.01mm, ensuring consistent product quality and perfect fit.
Customizable Solutions: We can customize sizes, thread specifications, head styles, and surface treatments according to your specific needs, meeting non-standard application requirements.
High-Quality Material Selection: Strictly select suitable aluminum alloys based on application scenarios, ensuring product performance matches your needs.
Excellent Performance: Lightweight, corrosion-resistant, good electrical and thermal conductivity, high strength-to-weight ratio, suitable for various harsh environments.
Strict Quality Control: Full-process quality inspection from raw materials to finished products, ensuring each product meets international standards.
