Product Details

This product is an essential “temporary fixing” item for steel structure projects. It’s a universal metal expansion bolt, specifically designed for temporary steel structure construction and fixing small components. No pre-embedding is required; simply drill holes in the concrete wall/floor, insert the expansion bolt, and tighten the nut. The expansion tube will then open, forming a secure fixing structure with the concrete. In steel structure projects, fixing some accessories, supports, and temporary railings does not require pre-embedded anchor bolts. Using expansion bolts can significantly save construction time and costs. This product boasts stable quality, secure fixing, and compatibility with various concrete substrates. Standard sizes are readily available, making it a basic consumable for construction projects and a small category for traders to replenish their stocks. Profits are stable, and repurchase rates are high.

Core Technical Parameters

Material: Carbon Steel Q235
Surface Treatment: Electro-galvanized
Specifications: M8 M10 M12 M16 M20 (Standard stock available)
Standard: National Standard GB/T 22795

Core Application Scenarios

Temporary steel structure support fixing, factory door and window frame installation, concrete fixing of small components, temporary construction guardrail fixing.
Recommended Matching: Use with a level 4 flat washer + spring washer for better anti-loosening effect.