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);
