Simpson #12 x 3" Self-Drilling Hex-Washer Head Screw, 316 Stainless Steel PACK:1000 Pk ideal for exterior use

ideal for exterior use

Can two HD12 holdowns be used together when eccentricity is a concern

long-lasting connection in demanding exterior applications - including coastal and high-humidity environments where corrosion resistance is critical

keeping materials tightly seated and reducing the risk of fastener failure under load

Drilling through embedded rebar in concrete and masonry substrates

Simpson #12 x 3" Self-Drilling Hex-Washer Head Screw, 316 Stainless Steel PACK:1000 Pk ideal for exterior useSimpson #12 x 3" Self Drilling Hex Washer Head Screw in 316 Stainless Steel is a precision engineered fastener built for demanding applications where corrosion resistance is non negotiable. Featuring a #3 drill point that eliminates the need for pre drilling, this screw drives cleanly into aluminum and fiberglass materials, creating a secure, lasting connection. The indented hex washer head provides broad bearing surface and a reliable 5 16 in. hex