The truss head is the widest standard head style – 2.2 to 2.8 times the shank diameter. That is significantly wider than a round head (1.6–1.8×) and wider than a universal head (2.0–2.2×). The extra width is the whole point: it spreads clamping force over a larger area, preventing truss head semi hollow rivets from pulling through soft or brittle materials.
This is not a niche fastener. This is the fastener you reach for when a round head pulls through, when a universal head is not wide enough, when you are fastening plastic, composite, thin sheet, or wood.
The truss head does not offer a low profile like a flat head. It does not offer a flush finish like a countersunk head. It offers one thing: the widest possible bearing surface.
| Head Style | Head / Shank Ratio | What It Is Best For |
|---|---|---|
| Round | 1.6–1.8× | Metal‑to‑metal, structural joints |
| Universal | 2.0–2.2× | Mixed materials, general purpose |
| Flat | 2.0–2.5× | Low profile, clearance‑limited |
| Truss | 2.2–2.8× | Soft materials, plastics, composites, oversized holes |
If your material is soft, brittle, or thin – and you need to keep the fastener in place – the truss head is the right answer.
We manufacture truss head semi hollow rivets to established standards:
| Standard | Scope | Head Style | Diameter Range |
|---|---|---|---|
| GB/T 1014-1986 | Chinese national standard | Large mushroom/truss head | 2 – 8 mm |
| Q 454-1999 | Chinese automotive standard | Mushroom head | 2 – 10 mm |
| Q 454-2012 | Non‑ferrous version | Mushroom head | 2 – 10 mm |
The truss head is also known as a "large mushroom head" in Chinese standards. We can produce to any of these specifications – or to your custom drawing.
Materials: Carbon steel (zinc‑plated), stainless steel (304/316, passivated), brass (C2680), copper (C11000), aluminum (1100/5052/5056)
Finishes: Zinc‑plated, nickel‑plated, passivated, lacquered, black oxide, plain
A manufacturer of plastic storage bins needed to attach metal handles to the bin bodies. Each bin used four rivets. The previous round head rivets pulled through the plastic after repeated lifting – the narrow bearing surface could not handle the load. The customer tried adding washers – it worked, but added parts and assembly time.
We supplied zinc‑plated steel truss head semi hollow rivets – 4.0mm shank, 11.0mm head, 10.0mm barrel length. The extra‑wide head distributed the load over a larger area – no more pull‑through, no washers needed. The customer tested 1,000 rivets across 250 bins. After 10,000 lift cycles with a 20kg load, zero failures. They now order our rivets in batches of 300,000 pieces annually.
We are a Dongguan‑based fastener manufacturer with over a decade of experience in cold heading. Our facility runs 45 cold‑heading machines capable of producing rivets from 0.8mm to 10mm in diameter – from tiny electronic components to larger industrial fasteners.
0.8mm to 10mm diameters – From tiny electronics rivets to larger industrial fasteners. We cover the range.
Standard or custom – We run high‑volume orders on our 45 cold‑heading machines. We also handle custom lengths, non‑standard head profiles, and special finishes. If you have a drawing, we can make it.
Quick sampling – We stock wire for the most common diameters, so we can ship samples in 5–7 days. No waiting weeks to test a rivet.
10+ years of experience on the floor – Our senior technicians have been doing this long enough to know how to hold tolerances that newer operators cannot. They understand how wire behaves, how dies wear, and how to adjust a machine before it drifts out of spec.
Every batch checked – Cavity depth, head geometry, shank diameter, hardness – we verify every batch before it leaves the factory.
Manufacturers who use our truss head semi hollow rivets come back to us for the same reasons:
Widest bearing surface – 2.2–2.8× shank diameter stops pull‑through
No washers needed – The wide head replaces the need for separate hardware
Consistent geometry – Every batch matches the drawing
Quick samples – 5–7 days, no waiting
We work with manufacturers in plastic products, automotive interiors, electronics enclosures, appliances, HVAC, and signage – across North America, Europe, and Asia.
A: Yes – custom rivets are a significant part of our business. We manufacture rivets to your exact specifications, including:
Non‑standard shank diameters – beyond our standard 0.8–8.0mm range
Custom head dimensions – larger or smaller head diameter, different head height, or modified head profile
Special lengths – longer barrels for thick material stacks, or shorter barrels for thin materials
Unique materials or finishes – if you need a material not in our standard lineup, we can source it
Tighter tolerances – we can hold ±0.02mm on critical dimensions for precision applications
The process is straightforward: send us your drawing (PDF or 3D model), and our engineers will review it for manufacturability. We provide DFM feedback, confirm pricing, produce first articles, and ship samples for your approval – all before mass production begins. Custom tooling lead time is 15–20 days. If you have a drawing, we can make it.
A: Our 45 cold‑heading machines can produce rivets up to 10mm in shank diameter. For diameters above 10mm, we can discuss custom tooling – but for most industrial applications, the 0.8–10mm range covers the vast majority of requirements. The truss head diameter scales with the shank – at 10mm shank, the head diameter is typically 22–28mm, providing an exceptionally wide bearing surface for heavy‑duty plastic or composite assemblies.