Reference illustration — produced to your drawing
Stainless Steel Fasteners
Stainless Steel Bolts
Stainless steel bolts are externally threaded fasteners in 301, 303, 304, 304L, 316, 316L, 410, 416 or 17-4PH grade, supplied in hex, socket and flanged head forms. The stainless grade resists corrosion in damp, washdown and outdoor environments.
Used across food, chemical, marine, water-treatment and outdoor equipment where rust must be avoided. Bought by OEMs, plant engineers and maintenance buyers.
Standard
ISO 3506-1
Size range
M2 – M48 · #2 – 2 in
MOQ
From 50 pcs
Lead time
Samples 5–10 days
What we produce
- Hex bolts, socket cap screws, carriage and flange bolts
- Grades 301, 303, 304, 304L, 316, 316L, 410, 416 and 17-4PH
- Metric coarse, fine, UNC and UNF threads
- Passivated or plain finish
- Cold-headed or machined with rolled threads
Specification notes
- 316L recommended for saltwater and chemical exposure
- Matching stainless nuts and washers available
- 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.
| Standard | ISO 3506-1 |
|---|---|
| Size range | M2 – M48 · #2 – 2 in |
| Threads | Metric coarse and fine · UNC · UNF |
| Head / geometry | Hex, socket and flanged head styles; hex, hex-key or Torx drive |
| 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 stainless steel fasteners 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