Tapcon 1/4" x 1-1/4" Concrete Screw, Phillips Flat - 410 Stainless Steel | Qty. 100 Collated Joist Hanger Nails The Simpson Strong-Tie® SD Connector

The Simpson Strong-Tie® SD Connector Screw is the only screw specifically engineered and approved to replace nails in designated Simpson Strong-Tie® connectors

They are easy to use and are proven to make your structure stronger

see General Notes

Always follow manufacturer instructions and applicable local building codes regarding fastener selection

The Simpson SS4

Tapcon 1/4" x 1-1/4" Concrete Screw, Phillips Flat - 410 Stainless Steel | Qty. 100 Collated Joist Hanger Nails The Simpson Strong-Tie® SD ConnectorTapcon 410 Stainless Steel Phillips Flat Head Concrete Screws are designed for fastening into concrete, brick, or block, delivering lasting performance in tough jobsite conditions. Made from tough 410 stainless steel, these screws are strong enough to hold tight in concrete and resist rust. The Phillips flat head offers a clean, finished appearance and is ideal for countersunk applications where flush seating is desired.. With aggressive Hi Lo threads