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Concrete Screwbolt / Thunderbolts

Concrete Screwbolt

The High Performance Concrete Screw for Absolute Mounting Ease

Special Zinc Flake corrosion-resistant coating

Unique design with patented threadform ensures high performance for relatively small hole diameter

Integral washer ensures a neat overall appearance for Screwbolts without flange

Non expansion functioning ensures low risk of damage to base material and makes the screwbolt ideal for installation near edges and adjacent anchors

Bolt with undercut technology for fixing into wood, brick & concrete

Available in various Sizes from M6 to M12

Further Discounts Available for Bulk Orders