50 structural wood screws (self cutting) which are 6x 240mm extra long countersunk pozi head (normal so no special bit needed). These are made for structural work like pinning insulation in flat and pitch roof as goes through osb3 and insulation into joist work with ease . Impact drivers with good pozi bit and have used these lots in roof construction and with building regs watching! Great for all timber as well including sleepers and are self cutting with great slash point soon pilot needed and easy to work with . Pack of 50 screws . You will get 50 of these screws which are 6x240mm as pictured.