Ideal for fixing uPVC and timber frames directly to masonry. Flat Countersunk Head with 5 x Locking Ribs Deep High / Low Thread for High Pull-Out Resistance Zinc-Plated & Yellow-Passivated Carbon Steel Construction Fully Threaded Suitable for Both Domestic...

Zinc yellow-plated with hex head. Self-drilling point and turbo rifled shank provides easy driving and reduced splitting. Suitable for softwood, hardwood or masonry with a nylon plug. Flange Head with Reinforced Neck 40° Thread for Secure Fixing &...