Reference illustration — produced to your drawing
Nuts
Security Nuts
A security nut is a hex nut designed so it cannot be removed with ordinary hand tools, protecting the assembly from tampering or theft. Common styles include shear-off collars and nuts needing a special driver.
Used on public fixtures, street furniture, security grilles and equipment covers where unbolting must be prevented. Bought by installers and equipment makers.
Standard
To your drawing
Size range
M3 – M24
MOQ
From 50 pcs
Lead time
Samples 5–10 days
What we produce
- Carbon steel 1045, stainless steel 304 or 316L
- Shear-off, pin-in-hex and special-drive styles
- Metric coarse, UNC or UNF threads
- Zinc-plated, galvanized or passivated finish
- Machined or cold-formed to ISO 2768-m
Specification notes
- Breakaway collar torque level is set per drawing
- Samples ship in 5–10 days; production runs 25–35 days
- Minimum order quantity starts from 50 pieces
Specifications
Every line below is a starting point, not a limit. Non-standard sizes, special threads and unusual materials are what we do — send the drawing and we confirm what fits.
| Size range | M3 – M24 |
|---|---|
| Threads | Metric coarse · UNC · UNF |
| Head / geometry | Tamper-resistant hex body; some styles shear off a driving collar after tightening |
| Materials | Stainless steel 301 / 303 / 304 / 304L / 316 / 316L / 410 / 416 / 17-4PH · carbon steel 1045 / 1215 / 12L14 · alloy steel 4130 / 4140 · aluminium 2024 / 5052 / 6061 / 7075 · brass · bronze · copper · titanium |
| Finishes | As machined · black oxide · zinc plating · nickel plating · chrome plating · anodizing · passivation (through our vetted partner network) |
| Precision | ±0.01 mm on features that locate, seal or fit; ISO 2768-m for general dimensions |
| Marking | Head marking, grade marking or your own identification mark per drawing |
| Documents | Material certificate (MTR) with every batch, plus pre-shipment photos before dispatch |
| MOQ | From 50 pieces per type and material · samples from 1 piece |
| Sample lead time | 5–10 days |
| Production lead time | 25–35 days after sample approval |
| Quote | Within 24 hours, with DFM feedback |
Other nuts we manufacture
See all 179 part types →
Send us the drawing
We reply within 24 hours with DFM feedback, a process route and a price. Samples from 1 piece, production from 50 pieces, shipped from Qidong City, Jiangsu Province, China.
Request a quote