The MasonMate Self Tapping Screws made for fixing frames directly to masonry or concrete. Zinc plated for increased durability. Each box is supplied with a T30 Driver Bit.Select Option 7.5 x 102mm (100)7.5 x 112mm (100)7.5 x 120mm (100)7.5 x 132mm (100)7.5 x 150mm (100)7.5 x 180mm (100)7.5 x 202mm (100)7.5 x 42mm (100)7.5 x 52mm (100)7.5 x 62mm (100)7.5 x 72mm (100)7.5 x 80mm (100)7.5 x 90mm (100) Add to Basket Quantity