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The quick reacting chemicals begin expanding within one minute of installation with a 20:1 expansion ratio
Flexible design: Roofjack size accommodates pipes from 5-1/2" - 11-1/2"
Each DTT2SS includes (8) 1/4" x 1-1/2" Strong-Drive SDS Heavy-Duty Connector screws for secure attachment to deck joists or framing members
Use the 1 1/4" screws for attaching siding to panels
ZMAX Galvanized Finish: Provides extra corrosion resistance for treated lumber and outdoor applications
1/4" x 3-1/2" Strong-Tie SDS25312SS Heavy-Duty Connector Screw, 316 Stainless Steel, Pkg 900 ECCQ End Column Caps The quick reacting chemicals beginThe Simpson Strong Tie Strong Drive SDS Heavy Duty Connector Screw is a 1 4" diameter structural wood screw designed for a wide range of connector, wood to wood, and engineered wood applications. Built for strength and speed, the SDS installs without predrilling thanks to its easy driving Type 17 point, which reduces splitting while ensuring consistent performance. Tested and approved in multiple structural applications, the SDS screw features a