4.8 x 57 CSK Masonry Screw Boxed In 100
Code: 3703220
Description:
• For fixing of window and door frames, timber beams, battens, wooden laths, facades, metal profiles, panels etc. in to masonry. Suitable for concrete, solid brick, perforated brick, hollow blocks, natural stone etc.
• T30 T Drive recess to reduce driver wear and prevent camming out.
• Flat countersunk head with 5 locking ribs.
• Deep high/low thread to give high pull-out resistance and waste extraction.
• Serrated V-threads to achieve optimum insertion into all masonry types.