Heavy Duty Self Tapping Screws
- Screws into a pre-drilled hole without the need of a wall plug, cutting its own thread
- For fixing directly into masonry and concrete
- Shallow countersunk head
- Torx T-30 recess
- High/Low thread design
- Zinc plated, & yellow passivated
Ideal for the fixing of window and door frames, wood or metal profiles, battens, brackets, timber beams, panels, signs etc.