Blue zinc-plated. Fixes into various types of masonry or wood without the need to use a plug. Bites its own thread on fixing for a secure installation. Pre-drill a 6mm pilot hole with a drilling depth equal to the length of the screw, plus an extra 10mm.

Brand Name	Spax
Manufacturer Model No	3495F
Multi-Head Countersinks Screw Head Flush	Yes
Single Thread with Ground Serrations for Fast & Accurate Driving	Yes
Zinc-Plated & Blue-Passivated	Yes
Hardened Steel Construction	Yes
WIROX Coated	Yes
Fully Threaded	Yes
Screws Direct into Masonry, No Plug Required	Yes
Deeper Recess for Stronger Bit Hold	Yes
Fast Time Saving Application	Yes
Screw Diameter	7.5mm
Screw Length	150mm
Screwdriver Type	TX
Standard	ETA-12/0114.