WURTH - 45mm wing-type timber to metal no-pre-drilling Decking Screw 5.5mm Raised Countersunk head Bi-Metal A2 304 Stainless Steel, box of 250
10g x 45mm for Metal Joists
Driver: WURTH RW 20 1/4" x 50mm
For direct timber to steel connections
Bi-metal stainless steel with hardened steel tip and Ruspert coating.Raised countersunk head provides an aesthetically pleasing finish.
Advantages of the RW drive system
• More power due to the larger contact area of the bit
• Precise positioning and perfect fit of the drive bit in the screw recess provides more stability allowing for one handed operation
• Fewer bit changes required for a larger variation of screw diameters
• Compatible with the same size AW drive bits
Instructions
No predrilling of the timber and up to 4mm steel substructures required.Drill into timber and steel using medium speeds then reduce the rotation speed when screwing.The full screw drilling tip must always protrude from the steel substructure for maximum thread engagement.