Full Hex Body Rivet Nuts
Full hex body rivet nuts key six flats into a pre-formed hexagonal hole for maximum spin-out resistance — the structural end of the rivet nut family. The manufacturer line names them for maximum spin-out resistance in structural applications, and the high-strength line pairs the hex body with Class 10 / Grade 8 thread proof load for Class 10.9 and Grade 8 bolts.
Last updated: 2026-11
Specifications
When the screw a rivet nut carries sees real torque, the body shape is the answer, and the full hex body is the strongest answer available. The insert sets into a pre-formed hexagonal hole, and six keyed flats give torque nothing to spin on: the collected manufacturer line names full hex bodies for maximum spin-out resistance in structural applications and credits the larger cross-sectional area with superior pull-out, push-out and thread performance over round and half-hex alternatives. That performance costs the hex hole — the panel needs punching or drilling to hex, which is why full hex bodies concentrate in the applications that genuinely need them: structural brackets, high-vibration equipment, and anywhere a loosened insert would mean disassembling the assembly to repair. The collected high-strength line builds on exactly this body: hex body rivet nuts rated for Class 10 / Grade 8 thread proof load, in higher-strength steel, sized to carry Class 10.9 metric and Grade 8 imperial bolts — the pairing to reach for when the threaded point must be as strong as the bolt that goes into it.
| Type | Full hex body rivet nut — six keyed flats set into a pre-formed hexagonal hole |
|---|---|
| Spin-out positioning | Manufacturer line: "Maximum spin-out resistance for structural applications" |
| Mechanism | Manufacturer line: "Installed into a pre-formed hexagonal hole, full hex rivet nuts outperform round body and half hex alternatives thanks to their larger cross-sectional area, providing superior pull-out, push-out, and thread performance" |
| Full-metric series availability | CFLM (full hex, large flange) · CFKM (full hex, small flange) |
| High-strength line | Rated for Class 10 / Grade 8 thread proof load; designed to pair with Class 10.9 (metric) or Grade 8 (imperial) bolts; higher-strength steel body |
| High-strength size scope | M5 to M12 and #10-24 to 1/2"-20 unified thread — installed with standard rivet nut tooling |
| Hole preparation | Hexagonal hole required — punched, drilled-and-broached or machined to the body specification; the hex form is the cost of the torque performance |
| Applications | Structural sheet-metal joints, high-vibration equipment, high-clamp-load threaded points — automotive, heavy truck, construction and agriculture equipment, renewable energy per the collected line description |
| MOQ / lead time | 10,000–50,000 pieces by size; 10–20 days |
| Thread | Across flats max (mm) | Head diameter (mm) | Hole in sheet (mm) | Grip range options (mm) | Min sheet (mm) |
|---|---|---|---|---|---|
| M3x0.5 | 4.98 | 8 | 5 | 0.5-2.0 / 2.0-3.5 | 0.5 |
| M4x0.7 | 5.98 | 9 | 6 | 0.5-2.5 / 2.5-4.5 | 0.5 |
| M5x0.8 | 6.98 | 10 | 7 | 0.5-3.0 / 3.0-5.5 / 5.5-8.0 | 0.5 |
| M6x1 | 8.98 | 12.9 | 9 | 0.5-3.0 / 3.0-5.5 / 5.5-8.0 | 0.5 |
| M8x1.25 | 10.98 | 16 | 11 | 0.5-3.0 / 3.0-5.5 / 5.5-8.0 | 0.5 |
| M10x1.5 | 12.98 | 19 | 13 | 0.7-3.5 / 3.5-6.0 / 6.0-9.0 | 0.7 |
| M12x1.75 | 15.98 | 23 | 16 | 1.0-4.0 / 4.0-7.0 | 1.0 |
Materials
- Steel (higher-strength steel in the Class 10 / Grade 8 line)
- Stainless steel
- Aluminum
Ordering & documentation
Documents
Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.
Quotation
- The fastener family (Full Hex Body Rivet Nuts) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
- Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
- Quantity per size and your target delivery date.
- Destination country, and any required documents (for example a mill test certificate) so the quote includes them.
Sample & supply
Minimum order quantity is 10,000–50,000 pieces depending on size. Standard production run 10–20 days. Quantities or variants outside the standard range are confirmed at quotation.
Storage & shipping
Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.
Frequently asked questions
Do I really need a hex hole, or is a knurled round body enough?
Rate the torque. A knurled round body resists spin by bite and suits moderate torque in soft or standard sheet; a half-hex body takes more; the full hex body keys six full flats and is the manufacturer-designated maximum for structural applications — with the larger cross-section also lifting pull-out, push-out and thread performance. The trade is hole preparation: the hex hole must be punched or machined, per panel, forever. For a structural or high-clamp-load threaded point that trade pays for itself; for ordinary brackets, knurl or half hex and keep the round hole.
What does the Class 10 / Grade 8 rating on high-strength hex-body rivet nuts mean?
That the insert's thread carries the proof load class of the bolt class it is meant to pair with: Class 10 metric and Grade 8 imperial. In practice the threaded point no longer derates the joint — a Class 10.9 or Grade 8 screw can be torqued to its own specification without stripping or spinning the insert, which is exactly the design intent of the collected high-strength line. It achieves this with a higher-strength steel body in the hex design, M5–M12 and #10-24 to 1/2"-20, set with standard rivet nut tooling.
What is the MOQ and lead time for these rivets?
Minimum order quantity is 10,000–50,000 pieces depending on size and material. Standard production lead time is 10–20 days. Common blind rivet sizes are widely stocked — confirm the exact schedule against quantity and size mix at quotation.
What should an RFQ for these rivets state?
State the rivet subtype (open-end, closed-end, structural blind rivet or rivet nut), body diameter, grip range or total material thickness, head style (dome, countersunk or large flange), body and mandrel materials (for example aluminum body with steel mandrel, or all-stainless), finish, required certificates such as a mill test report per EN 10204 3.1, and quantity per size — plus destination country.
Request a Quote
Get factory-direct pricing from the manufacturer.
What to include in your inquiry
- ✓ Standard and property class (e.g. DIN 912, ISO 4762, class 8.8) — or a drawing for custom parts.
- ✓ Sizes, lengths and thread type (metric or inch).
- ✓ Quantity per size and your target delivery date.
- ✓ Destination country, plus any coating or finish requirement.
- ✓ Any documents you need with the shipment (e.g. mill test certificate) so the quote includes them.
- ✓ Your inquiry goes straight to the factory team by email and gets a reply within 24 hours.
- ✓ Factory-direct pricing
- ✓ Standard and custom specifications
- ✓ Factory-direct export to buyers in Europe, Asia, the Americas and the Middle East
- ✓ Full fastener family support