Screw Products ROCO No. 10 X 1.5 In. L Star Low Profile Head Construction Screws 5 Lb 650 Pk

ROCO Wood to Steel Screws are specifically designed for increased holding power and an incredibly clean finish. When engaging the wood, the screw effortlessly drills through the wood while the wings mill an oversize hole. When the screw engages the steel base, the oversize hole prevents the threads from engaging the wood, lifting wood and steel apart (jacking). The specially engineered drill point cuts fast through the steel base and once penetrated, the wings easily break off. The threads then tap through the steel and firmly clamp the wood and steel together.

A slight curvature of the head for elegant, professional, architectural results, the finish ring underneath the head also provides a better finish by cutting the top fibers in the wood for an extra step in countersinking

Turbine ribs cut quickly into the wood, leaving a professional, clean finish with maximum wood contact

The cup shaped, countersinking head provides increased holding power and reduced risk of splitting

The unique wing design is engineered to mill an oversize hole in the wood without breaking

As soon as the wings reach the steel, they easily break off, allowing the threads to tap into the steel base

The drill point has been specifically engineered to penetrate the steel as fast as possible

The angle and shape of the point makes it possible to remove steel chips fast and efficiently to enhance penetration