Description
Galvanised Lightningrbolt is a 8.8 grade self tapping anchor for use in concrete, brick, stone and block. The Thunderbolt can be used in both solid and hollow materials. Thunderbolt is now the fastest selling anchor bolt on the market.
Drill sizes are the sames as bolt sizes, for example: 5mm = 5.0 Drill Bit, 6mm = 6.0 Drill Bit etc.