GRK 16083 Exterior RT Composite Self-Tapping Trim Screw, #8 x 3-1/8", 514-Count NewArrivals The flutes are ground behind

The flutes are ground behind the lands to funnel the chips to the inside of the bit & away from the outside diameter

Durable and permanent

Material: Nylon Glass Fiber

Convection heating helps circulate air to heat a space up to 75 square feet

Durable shock resistant construction to maintain accuracy

GRK 16083 Exterior RT Composite Self-Tapping Trim Screw, #8 x 3-1/8", 514-Count NewArrivals The flutes are ground behindGRK's Trim Head screws are an excellent choice for most fine carpentry applications, as well as window extension jambs and more. The Trim Head screws have the smallest screw head available; with screw lengths of 3 1 8". Most material splitting is prevented because of the Trim Head screw's exceptionally small head and the W Cut thread design. 514 count Recessed star drive zero stripping, with 6 points of contact Trim head for a clean finished look