Tapcon 1/2" x 4" LDT Large Diameter Concrete Screw, Hex Head - Zinc | Qty. 25 Sale Fastener placement is critical—use all

Fastener placement is critical—use all specified holes to achieve full load capacity

Choose the Roofjack Extreme Angle EPDM Pipe Flashing Boot for dependable performance on even the most demanding roofing projects

Take the guesswork out of what fasteners you need with our APB44R Kit that has the fasteners included to complete your project

Designed for reliable structural reinforcement

Designed specifically for I-joists

Tapcon 1/2" x 4" LDT Large Diameter Concrete Screw, Hex Head - Zinc | Qty. 25 Sale Fastener placement is critical—use allLDT Tapcon Concrete Screw Anchors are a proven solution for high strength anchoring in concrete and masonry. With their robust design and aggressive thread profile, these heavy duty screws provide consistent performance in structural, industrial, and commercial settings. Built for speed and holding power, these anchors cut their own threads into base material, no inserts or expansion required. The dual lead thread reduces installation time while