#9 x 1-1/4 in. Star Drive Serrated Head Cement Board Screws (750-Pack)
https://www.probuilderswarehouse.com/shop/1005837552-0-9-x-1-1-4-in-star-drive-serrated-head-cement-board-screws-750-pack-836264
https://www.probuilderswarehouse.com/web/image/product.template/836264/image_1920?unique=75770bf
Brand: Backer-On
Model: 23505
SKU#: 1005837552.0
Barcode: 314498727
