TechFast Timber to Steel CSK/Wing Screw No.
3 Tip 4.
8 x 38mm Box 200 - ForgeFix TFCUWWSD5540L, Forgefix TechFast Timber to Steel CSK/Wing Screws are used to join timber to steel frame buildings.
The screws are fitted with breakaway wings that create a clearance hole to protect thread from engaging timber when drilling through.
Breakaway wings will ream a hole, then break-off when they contact the metal surface to be drilled.
The thread will then engage with metal.
They have a TORX® compatible insert for a higher transmission of power.
With improved countersinking from recessed ribs.
Fire and corrosion resistant.
Complies with EU Safety, Health and Environmental requirements.
These Forgefix TechFast Timber to Steel CSK/Wing Screws have the following specification: Size: 5.
5 x 40mmClamping Thickness: 20mmEffective Thread Length: 19mmPack Size: 100Drill Tip: No.
3 No.
3 drill tip for self-drilling heavy gauge steel up to 5mm.
ForgeFix TechFast Timber to Steel CSK/Wing Screw No.
3 Tip 5.
5 x 40mm Box 100