1/2 in. x 3- 1/2 in. Galvanized Hex Drive Hex Head Lag Screw
https://www.probuilderswarehouse.com/shop/534161-0-1-2-in-x-3-1-2-in-galvanized-hex-drive-hex-head-lag-screw-644214
https://www.probuilderswarehouse.com/web/image/product.template/644214/image_1920?unique=671cf59
Brand: Everbilt
Model: 804686
SKU#: 534161.0
Barcode: 204645673
