Custom PTFE CNC Screws and Bolts

Chunhuan’s CNC-machined PTFE screws and bolts are precision-engineered for demanding applications where metal fasteners fail due to corrosion, contamination, or insulation issues.

Key Features:

• Exceptional Chemical Resistance
  Resists acids, alkalis, solvents, oxidizers — ideal for chemical processing, plating, and pharmaceutical equipment.

• Extreme Thermal Tolerance
  Operational range from -200°C to +260°C, with short-term resistance up to 300°C — suitable for cryogenic and steam environments.

• Non-Stick & Self-Lubricating
  Friction coefficient as low as 0.04, perfect for applications like extrusion dies, hot glue systems, and anti-fouling assemblies.

• High Electrical Insulation
  Dielectric strength up to 10 kV/mm and volume resistivity >10¹⁸ Ω·cm — safe for high-voltage terminals, electrolytic systems, and clean electrical connections.

• FDA & Pharmaceutical Compliance
  Pure PTFE screws meet FDA 21 CFR 177.1550 and USP Class VI, ensuring safety in food, cleanroom, and biopharma settings.

Applications:

• Flange sealing, reactor sight glass mounting

• Semiconductor wafer handling & cleanrooms

• Pharmaceutical filling systems

• Electroplating racks & acid-resistant fixtures

• Electrical terminals & cable insulation fasteners

Material Options:

• Pure PTFE – For high-purity, clean environments

• Filled PTFE – Reinforced with glass fiber, carbon fiber, or graphite for added mechanical strength and wear resistance

✅ Why Choose PTFE Screws Over Metal?
Unlike metal fasteners that corrode or contaminate sensitive systems, PTFE screws provide unmatched chemical inertness, zero ion leaching, and long-term reliability under harsh conditions.

? Custom CNC service available – We can machine per drawing, including hex heads, countersunk, slotted, Phillips, flanged, and custom threads.