Shoulder Screws
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Zinc-plated Cross Recessed Pan Head Anti-loosening Shoulder Screw
Superior Torque & EfficiencyProducts
Patented six-point star recess with even torque distribution, withstands up to 50N·m high torque, eliminates cam-out and avoids screw/tool damage—ideal for vibration-prone automotive engines and industrial pumps.
Self-centering feature cuts tool alignment time by 40% for automated production lines, compatible with torque-controlled tools for repeatable precision in quality-critical industries.
Full Customization SolutionsProducts
•Dimensions: M1.6 - M18 threads (standard/finely/rough pitch), length 3 mm - 120 mm; features include reinforced heads, stepped handles, grooved designs, all with strict tolerances of ±0.02 mm.
•Materials:
•1. 304/316 stainless steel (suitable for outdoor humid environments, with corrosion resistance)
•2. 4140 alloy steel (tensile strength 1200 MPa, suitable for heavy-duty conditions)
•3. C36000 copper (65% conductivity, suitable for electronic devices).
•Surface treatments:
•1. Zinc coating in accordance with RoHS standards (50-hour salt spray resistance)
•2. Nickel coating (polished surface, with corrosion resistance)
•3. Black oxidation treatment (reduces friction by 50%, suitable for moving parts)
•4. Polytetrafluoroethylene coating (-40°C to 260°C extreme temperature tolerance)
•You can inform the engineer about your working environment, and the engineer can help you choose the best surface treatment method.
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Electronic Devices
Secure circuit boards, connectors, and device housings without nicking sensitive parts. We’ve had clients use these for custom IoT gadgets and medical monitors—where a loose screw or bad fit could ruin thousands of dollars in gear.
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Automotive Parts
Hold small mechanical bits in engines, interiors, and electrical systems—they stand up to the shaking and temperature swings that break cheap screws. Perfect for custom builds or those hard-to-find replacement parts that need to match OEM standards.
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Precision Machinery
Fit custom fixtures, tooling, and equipment assemblies. Manufacturers swear by these for CNC machines and production lines—even a tiny size off can throw the whole operation off track, and we don’t do “off.”
Precision Manufacturing & Quality AssuranceProducts
•Production Craft: Certified raw materials with ultrasonic testing to eliminate internal defects; 100–200 tons cold-forged heads for dense, defect-free structures; cold-rolled threads (20% higher tensile strength than cut threads) for smooth insertion.
•Rigorous Testing: Batch laser dimension verification (±0.01mm accuracy), tensile/yield load testing and Class 6H thread pitch inspection; ASTM B117 salt spray testing (12–150h) and 10–2000Hz vibration testing for anti-loosening performance; zero defective products delivered to customers.
Why Partner With Us?Products
•Technical Expertise: 30+ years of engineering experience with end-to-end support—material selection, torque calculation and on-site installation guidance tailored to your project’s unique challenges.
•Customization Leadership: Specializes in non-standard designs, including titanium/Inconel materials for extreme conditions; 10–30 day custom sample delivery.
•Quality & Delivery Commitment: Provide Mill Test Certificates and full ISO compliance documents.
