Expansion bolts for concrete and masonry that promise strong, vibration-resistant anchoring, LHUIDDH Expansion Bolts. Confidently secure fences, doors, awnings or heavy fittings without worrying about loosening over time. Are these M8 x 80mm fixings the reliable choice for your next home improvement job?
⚡ At a Glance
- • Holding Strength: High hardness and hexagonal outer sleeve expand firmly in concrete and masonry for a secure anchor
- • Best for: Securing fences, security doors and windows, awnings, water heaters, air conditioners and similar home fixings
- • Not ideal for: Non-masonry surfaces where mechanical expansion will not form a reliable hold
Galvanised carbon steel M8 x 80mm bolts supplied in a set of ten. Structural sleeve design gives anti-vibration performance and resistance to deformation.
Reliable Anchoring – with hexagonal outer expansion sleeve
Hexagonal sleeve deforms outward when the nut is tightened, generating radial pressure against the hole walls and creating a mechanical interlock in concrete or masonry. The expansion action converts applied torque into a firm gripping force.
Strong mechanical grip reduces pull-out and wobble, suitable for medium to heavy loads such as gates or mounted appliances.
Corrosion Resistance – thanks to galvanised carbon steel construction
A galvanised finish applies a protective zinc layer to carbon steel, slowing oxidisation and helping to prevent surface rust. The base material combines hardness with tensile strength for dependable anchoring.
Longer service life in external or damp locations, meaning fewer replacements over time and reliable performance where exposure is a concern.
Straightforward Installation – with simple drill-and-tighten method
Installation requires drilling an appropriately sized hole, inserting the bolt so the sleeve sits in the wall, then tightening the nut with a wrench outside the hole to engage expansion. Proper hole preparation ensures the sleeve expands evenly.
Quick to fit using standard tools, saving time on site and delivering a snug, repeatable fix when holes are prepared correctly.
✨ The 4 Key Reasons for LHUIDDH Expansion Bolts
- Galvanised carbon steel – Resists corrosion in damp or outdoor environments for durability
- Hexagonal outer sleeve – Creates firm radial expansion to reduce pull-out risk
- Anti-vibration design – Maintains tight connections under constant or intermittent vibration
- Ten-piece set – Supplies enough fixings for small to medium-sized installation jobs
📋 Technical Details at a Glance
- Category: Expansion bolts
- Size: M8 x 80mm
- Quantity: 10 pieces
- Material: Carbon steel
- Finish: Galvanised
❓ Frequently Asked Questions
Q: Are these bolts suitable for concrete and masonry walls?
A: Yes; product descriptions specify they are designed for concrete and masonry wall fixing.
Q: What are the bolt dimensions and how many are included?
A: Each bolt measures M8 x 80mm and the set includes ten hexagonal outer expansion bolts.
Q: How should the bolts be installed?
A: Drill an appropriately sized hole, insert the expansion bolt, then tighten the nut with a wrench outside the hole to engage the sleeve and secure the fixing.
🏆 Our Verdict
Well suited to DIYers and tradespeople who need reliable masonry fixings for medium to heavy fixtures. Galvanised carbon steel construction and a hexagonal expansion sleeve combine to deliver durable, anti-vibration anchoring. Robust materials and straightforward installation offer long-term value through fewer returns and replacements.
