Reference illustration — produced to your drawing
Fastener Families
Mil-Spec Fasteners
Mil-spec fasteners are bolts, screws, nuts, and rivets made to published military and aerospace part standards, identified by an MS, NAS, or AN part number. Each number fixes the material, finish, thread, and geometry.
Used where a drawing or procurement specification calls for a controlled, traceable part number in aerospace, defence, and high-reliability equipment. Buyers are OEMs, MRO providers, and distributors that stock standard part numbers.
Standard
MS / NAS / NASM
Size range
Quoted per drawing
MOQ
From 50 pcs
Lead time
Samples 5–10 days
What we produce
- MS and AN series bolts, screws, and nuts
- NAS series high-strength and close-tolerance parts
- Alloy steel 4140, stainless steel 304/316L, and titanium
- Zinc plating, passivation, or bare finish per part number
- Unified fine and coarse thread classes
- Cross-reference to common part numbers on request
Specification notes
- Material and finish fixed by the governing part standard
- Common aerospace sizes and lengths held or made to order
- Metric interchange parts quoted on request
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.
| Standard | MS / NAS / NASM |
|---|---|
| Size range | Quoted per drawing |
| Threads | UNC · UNF · UNJC · UNJF |
| Head / geometry | Hex, 12-point, or recessed drive per part number |
| 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 fastener families 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