Thunderbolts Masonry Anchor Screws All Lengths M8 M10 M12

Sale price £138.99 Regular price £159.99

Tax included. Shipping calculated at checkout.

M8, M10 & M12 Genuine Thunderbolts with Hexagonal Hex Head

The M8 Bolt requires a 8mm Masonry Drill
The M10 Bolt requires a 10mm Masonry Drill
The M12 Bolt requires a 12mm Masonry Drill.

Simply drill a hole using the correct masonry drill bit, remove the dust and debris and wind in. No need for plastic plugs.

These bolts are classed as non-expansion anchors which means they won't stress the concrete when fixing.

Hexagonal Head Genuine Thunderbolt 

The unique patented concave thread design taps its own thread and provides a rapid, low torque installation with exceptional pull out resistance. It also allows the user to adjust or remove the bolt ensuring a secure and accurate installation. This stress free, non-expansion through fixing is the new solution for medium duty anchoring into concrete, brick, stone, wood and concrete block replacing the need for traditional anchors such as through bolts, shield, sleeve and drop-in anchors
Always 'over drill' the hole by 20mm

The M8 Bolt requires a hole clearance through the fixture of 10mm
The M10 Bolt requires a hole clearance through the fixture of 12mm
The M12 Bolt requires a hole clearance through the fixture of 14mm