#9 x 2-3/4 in. Star Drive Round Head R4 Multipurpose Framing and Decking Screws (2,000-Pack)

GRK’s R4 self-countersinking screw has a patented under head with saw-blade like cutting teeth and 6 self-contained cutting pockets. Together they act similar to a circular saw-blade, transporting the drill dust away from the edge of the screw hole while cutting a perfectly clean hole into even the most brittle materials without cracking any surface treatment. R4 Multi-Purpose Framing Screws are used for wood, plastic, cement fiber board, particle board, sheet metal, wood decking and melamine. for use in all applications that include pressure treated lumber.”,”highlights”:[“Faster Drive for Improved Productivity”,”Fast Bite Tip provides a fast start for one-step installation”,”For interior / exterior use”

Drive Style:Torx

Fastener Color:Brass

Fastener Material:Carbon Steel

Fastener Plating:Polymer

Fastener Type:Wood Screw

Features:ACQ Rated,Self Tapping

Head Style:Bugle Head

Included:No Additional Items Included

Interior/Exterior:Exterior,Interior

Materials Fastened:Wood to Wood

Measurement Standard:SAE

Package Quantity:2000

Product Weight (lb.):20.06 lb

Returnable:90-Day

Thread Style:W-Cut

Manufacturer Warranty:Visit our website at grkfasteners.com and type in warranty in the search box for detailed warranty information

Screw Length:2-3/4 in

Size:#9

Thread Pitch (mm):2.2 mm

Threads Per Inch (TPI):11.5