Description
M8 Hex Head Screws – 25mm HDG (Box of 100)
These M8 hex head screws are 25mm fully threaded bolts, hot-dip galvanised for long-lasting corrosion resistance. Manufactured from Grade 8.8 high tensile steel, they’re designed for use in outdoor applications, including bracketry, support systems, and heavy-duty external installations.
Key Specifications:
- Thread Size: M8 Metric
- Length: 25mm
- Thread Pitch: 1.25mm
- Material: Grade 8.8 High Tensile Steel
- Finish: Hot-Dip Galvanised (HDG)
- Hex Head Size (A/F): 13mm
- Thread: Fully Threaded
Key Benefits:
- Hot-dip galvanised for superior corrosion resistance outdoors
- Meets DIN 933 standard – high strength and reliability
- Perfect for channel bracket systems and external fixings
- Supplied in bulk pack of 100 for commercial use
Important Note:
This galvanised bolt range is only compatible with over-tapped nuts and channel nuts.
Typical Applications:
- Outdoor support brackets and containment systems
- Construction, HVAC, and electrical installations
- External Unistrut-compatible frameworks
Ordering & Delivery
✔ Trusted UK Delivery – 95% of orders dispatched within 24 hours
Most orders arrive within 1–2 working days as standard.
Note: Heavy or bulk orders, as well as any special cut length or non-standard products, may take slightly longer to dispatch.
For bulk quantities or trade pricing, please call our team on 0121 270 8507.




















