Type K Nut 1/4-20 304 Stainless Steel — stocked and shipped worldwide by SFX Fasteners. Available for single-piece retail orders — no minimum order — dispatched from our own warehouse within 24–48 hours.
Specifications
| Material | 304 Stainless Steel |
| Grade | A2-70 |
| Diameter | 1/4-20 |
| Thread | Imperial (US) |
| Surface Finish | Plain |
| Brand | SFX Fasteners |
Ordering & shipping
| Minimum order | No minimum — single pieces welcome |
| Pricing | Order totals are confirmed at checkout, before payment |
| Custom & dropship | Small batches to drawing · blind dropshipping on request |
| Dispatch | 24–48 hours for stock items |
| Shipping | Worldwide, calculated at checkout by weight and destination |
Need a specific size, grade or standard? Send us a quote request — we quote to drawing and to DIN / ANSI / GB / JIS standards.
About this nut
This is a nut in 304 Stainless Steel, at strength class A2-70, supplied plain, with an 1/4-20 thread. Every dimension is stated against the standard named above; where a tolerance class matters to your design, ask us and we will confirm it in writing before you order.
A nut is the closing half of a bolted joint. Its property class is chosen to match the bolt it is paired with — a class 8 nut for a grade 8.8 bolt, so the thread strips before the bolt breaks. Used wherever a bolt or stud has to be tightened from the far side, and for locking and positioning duties on machinery and steelwork.
A non-metric or special bore size. Confirm the thread form and tolerance with us before you specify it into a design.
A2-70 is 304 stainless, cold worked to a 700 MPa minimum tensile and 450 MPa 0.2% proof stress. It is the default stainless grade for general purpose bolts and screws.
There is no minimum order and no free-shipping threshold: buy one piece or a full container. Your order total is confirmed in the cart, before payment.

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