Custom UNC Thread Dies - Precision Thread Cutting for Industrial Pipe Applications

We supply custom-manufactured UNC (Unified Coarse) thread dies engineered for heavy-duty pipe threading applications. Manufactured from premium high-speed steel (HSS) and alloy tool steel, our UNC dies deliver clean, accurate threads with excellent tool life across production runs. All dies undergo rigorous heat treatment and precision grinding to ensure dimensional accuracy and consistent thread quality.

Key Offer: Custom UNC thread dies - MOQ 100 sets, sizes can be mixed. Factory-direct pricing with 45-50 day lead time.

Standard UNC Thread Size Range

Custom sizes available: Non-standard UNC sizes, special pitches, and metric thread dies can be manufactured to your specifications. Contact our engineering team with your requirements.

Material and Manufacturing

• Premium HSS (M2/M35): High-speed steel with cobalt for superior hot hardness and wear resistance. Recommended for carbon steel and alloy steel pipe threading.
• Alloy Tool Steel: Cost-effective option for low to medium volume production on mild steel pipes.
• Heat Treatment: Vacuum hardening and triple tempering process ensures uniform hardness (62-65 HRC) throughout the die body.
• Precision Grinding: Thread profiles ground on CNC grinders to Class 2A/3A tolerance as standard. Class 1A available on request.

Ordering and Lead Time

• MOQ: 100 sets per order. Sizes can be mixed within the MOQ - order the exact combination your customers need.
• Lead Time: 45-50 days from order confirmation and deposit receipt.
• Packaging: Individual anti-rust paper wrap with foam insert in branded box. Bulk packaging available for OEM customers.
• Custom Branding: Private label and OEM packaging available. Laser engraving of your logo and size markings on each die.

Compatibility Note

IMPORTANT: These are standard UNC thread dies intended for general pipe threading and fastener production. They are NOT designed for or compatible with the following specific machine models: STT50, STT150, STT50E, SQ50E, STT50A, STT80, STT100. Please verify die holder dimensions and mounting specifications before ordering.

For pricing, technical drawings, or to place an order, please contact our sales team. We provide free sample evaluation for qualified buyers and can ship worldwide via air freight or sea freight based on your urgency and budget.