Simpson Strong-Tie #12 4" Self-Drilling Screw, Hex-Washer Head - 316 Stainless Steel, Qty. 1,000 Simpson Strong-Tie BVLZ Ledger Connectors Structures requiring high-load concealed hangers

Structures requiring high-load concealed hangers

or commercial structures

ensuring tight connections and excellent pull-through resistance

1 5/8" for wood siding

or A307 standards with 36 ksi yield strength

Simpson Strong-Tie #12 4" Self-Drilling Screw, Hex-Washer Head - 316 Stainless Steel, Qty. 1,000 Simpson Strong-Tie BVLZ Ledger Connectors Structures requiring high-load concealed hangersBuilt to stand up to the harshest environments, the Simpson Strong Tie T12400HDUM Self Drilling Hex Washer Head Screws in 316 stainless steel offer unmatched corrosion resistance for demanding applications. These screws are engineered for fastening into 16 to 12 gauge steel, eliminating the need for pre drilling and streamlining your installation. Whether you're working in coastal construction, wastewater facilities, or any high exposure environment,