Simpson 1/4" x 1-1/4" Titen Phillips Flat-Head Stainless Steel Concrete Screw Hand Tools Finished-look fastener for visible surfaces:

Finished-look fastener for visible surfaces: the checkered full-round head is designed to blend into wood surfaces rather than stand out

fiber-cement siding to steel

The ECCLLQ444SDS installs with 1/4 in

ensuring compatibility with standard UNC-threaded nuts and hardware designed for these classes

and overhead applications without slumping or running before it cures

Simpson 1/4" x 1-1/4" Titen Phillips Flat-Head Stainless Steel Concrete Screw Hand Tools Finished-look fastener for visible surfaces:Simpson TTN25114PFSS Titen 1 4 in. x 1 1 4 in. Phillips Flat Head Stainless Steel Concrete and Masonry Screw is a high performance mechanical anchor from Simpson Strong Tie, engineered for secure fastening into concrete, masonry, and related base materials. Constructed from Type 410 stainless steel with a zinc plated protective overcoat, this screw delivers a medium level of corrosion resistance, making it well suited for demanding structural and