Simpson #8 x 2" Square Drive Self-Drilling Bugle-Head Screw, 410 Stainless LUC Concealed Flange Light Face-Mount Joist Hanger The checkered full round head

The checkered full round head is engineered to accept surface finishes and reduce glare - an important consideration for visible framing work or applications where appearance and coating adhesion matter

and Stalgard coating provides 1000 hours of salt spray protection (ASTM B117)

or aluminum workpieces

combined with full-length threading for maximum holding power along the entire fastener length

It means the anchor continues to expand slightly as tensile (pull-out) loads are applied during service

Simpson #8 x 2" Square Drive Self-Drilling Bugle-Head Screw, 410 Stainless LUC Concealed Flange Light Face-Mount Joist Hanger The checkered full round headSimpson #8 x 2" Square Drive Self Drilling Bugle Head Screw in Type 410 Stainless Steel is engineered for reliable fastening of wood, plywood, and OSB panels to steel studs. Designed with a self drilling drill point that eliminates the need for pre drilling, this bugle head fastener delivers clean, flush driving performance in both interior framing and light gauge steel applications. Built from Type 410 stainless steel with an additional corrosion