Hammer Nut M8 Carbon 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 | Carbon Steel |
| Grade | Grade 4.8 |
| Diameter | M8 |
| Surface Finish | Colour Zinc Plated |
| 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 Carbon Steel, at strength class Grade 4.8, supplied colour zinc plated, with an M8 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.
Carbon steel is the workhorse material for structural fastening. Grade 8.8 and above must be coated (zinc, black oxide or Dacromet) or it will rust outdoors.
Colour zinc plating is an electroplated finish with a yellow/olive passivate — the older, thicker-passivate version with better salt-spray life than clear zinc.
Is this not quite the size or grade you need? Ask us — we produce small batches to drawing and to DIN, ISO, GB and JIS standards, and we consolidate pallet and container loads for trade orders.

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