#7 x 2-1/4" Simpson Strong-Tie #1 Square Drive Trim Head Deck Screw - 305 Stainless, Pkg. 350 Masonry Screws Flexible design: #5 Roofjack size

Flexible design: #5 Roofjack size fits pipe sizes from 4-1/4” - 7-1/2”

while lengths up to 1" are fully threaded and longer sizes feature partial threading for greater pull-through strength

The square-drive recess provides secure engagement and reduces cam-out

Phillips Flat Head: provides flush seating in countersunk applications

#7 x 2-1/4" Simpson Strong-Tie #1 Square Drive Trim Head Deck Screw - 305 Stainless, Pkg. 350 Masonry Screws Flexible design: #5 Roofjack sizeSimpson Strong Tie Trim Head Deck Screws are built for clean, secure deck board installations with lasting holding power and a smooth finish. Featuring a square drive for slip free engagement during installation, these screws are easy to drive and resist cam out in both hand driven and auto feed systems. The trim style head seats flush with the surface, creating a polished appearance ideal for visible decking surfaces. A Type 17 point allows fast