#8 x 3/4" Robertson Square Truss Head Tapping Screw - Box of 100

The original Robertson square drive system invented by PL Robertson more than a century ago. Robertson “Cling Fit” screws are the best fitting in the industry when paired with our Racky Driver Bits. The Truss Head features a low-profile semi-elliptical top with flat bearing surface. Truss tapping screws feature a fully threaded single lead type “A” thread, with gimlet point. Ideal for use in wood, metal and plastics.