Joyner Bolt Spiked Timber Fixing M12 12mm x 230mm Nuts included

Bolt M10x230 & M12x230 (10 pack inc nuts) - spiked timber fixing for connecting four timbers together with or without structural steel eg floor joists and rafters *Immediately grips to allow single handed fixing; *wont turn or pull through timber; *easy to use in tight spaces; *compensates for overdrilled holes; *no countersinking required before boarding; *guaranteed Building Control quality joint every time