Hexagon Self Drill Screws c/w Washer – for Steel 4.0 – 12.5mm
- Hexagon headed screws with 16mm bonded washer
- Three stage organic coating
- 8mm Hex drive
- No.5 Tek point suitable for steel thicknesses 4.0 – 12.5mm
These quality screws have a high tech organic coating for superior rust proofing qualities to standard zinc plating and a neoprene bonded washer for weathersealing and isolating.
HL38W is the popular product for fixing brick ties to steelwork. A Neoprene Isolating Washer should also be used between the stainless steel tie and the steelwork to separate the dissimilar metals.
For screws into these steel thicknesses a Tek Screwdriver giving 1500 – 2500rpm should be used to ensure adequate drilling speed and driving torque