Custom Screw Hardware Fasteners Hex Socket Head Shoulder Screws Made-To-Order Fasteners Hardware Prototyping

Custom Screw Hardware Fasteners Hex Socket Head Shoulder Screws Made-To-Order Fasteners Hardware Prototyping​

The production of specialty fasteners requires high-precision, highly complex processes to avoid the precision defects of general-purpose processes. Common precision processes include:

1. Precision machining: five-axis CNC machining (to achieve single-shot molding of complex structures) and electrical discharge machining (EDM, for machining ultra-hard materials exceeding the hardness of cutting tools, such as tungsten alloys);
2. Special surface treatments: electroless nickel-phosphorus alloy plating (to improve corrosion resistance), nitriding (to increase surface hardness, suitable for wear-resistant applications), and polytetrafluoroethylene (PTFE) coating (to reduce friction, used in precision transmission components);
3. Rigorous testing: Each batch must undergo nondestructive testing (such as ultrasonic testing for internal defects and X-ray inspection for weld quality) and performance testing (such as tensile, fatigue, and corrosion testing). Some high-end products also require industry certifications (such as AS9100 for aerospace and ISO 13485 for medical applications).

Features:

High-temperature resistant materials: Nickel-based superalloys (such as Inconel 718, capable of operating at temperatures above 650°C for extended periods, used in aircraft engines and boiler components); titanium alloys (such as TC4, heat-resistant and lightweight, used in aerospace structures);
Extremely corrosion-resistant materials: Hastelloy C-276 (resistant to strong acids, alkalis, and seawater, used in marine engineering and chemical storage tanks); Monel 400 (resistant to seawater and chloride ion corrosion, used for ship propeller mounting);