Cold Headed Fasteners
Custom cold heading production of hex bolts, carriage bolts, flange bolts, machine screws, and self-tapping screws — engineered to your drawings, in metric and imperial sizes.
Tailored to Your Specifications
The assortment shown demonstrates our versatility in custom metal manufacturing. From specialized head geometries to high-precision threads, we deliver components that meet the exact requirements of your technical drawings.
Cold heading (cold forming) is the backbone of our production line. Wire rod is fed into multi-station heading machines and formed into fasteners at high speed, without heat — which preserves material strength, delivers excellent surface finish, and keeps unit costs low for high-volume runs.
With 20+ years of experience and over 80 production machines, Taily Metal produces hex bolts, carriage bolts, flange bolts, machine screws, self-tapping screws, studs, and custom cold-headed parts from M3 to M64, in grades from 4.8 to 12.9.
Key Specifications
- Size range: M3 – M64 (metric), #2 – 2-1/2" (imperial)
- Strength grades: 4.8 / 5.8 / 8.8 / 10.9 / 12.9
- Threads: full thread, partial thread, self-tapping, thread forming
- Head styles: hex, flange, carriage, pan, countersunk, socket, custom
- Standards: DIN, ISO, ANSI/ASME, GB, JIS or build-to-print
Materials
Surface Finishes
Industries & Applications
Production Process
- 1Wire rod inspection
- 2Cold heading / forming
- 3Thread rolling
- 4Heat treatment (optional)
- 5Surface finishing
- 6100% dimensional inspection
- 7Packaging & shipment
Cold Heading vs. CNC Efficiency Comparison
| Metric | Cold Heading | CNC Machining |
|---|---|---|
| Material Utilization | 98% (Near-Zero Waste) | 60% (Subtractive) |
| Production Speed | 150-300 PPM | 1-2 PPM |
| Grain Flow | Continuous (Higher Strength) | Interrupted (Cut) |
| Unit Cost (50k+ qty) | Optimized (-35%) | Higher |
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