Simpson MTH Wood Underlayment Screw Collated #7 x 1-1/4 in. Gray Phosphate Trim Head 1000-Pk CCCQM Cross Column Cap Yes on both counts

Yes on both counts

and 1/2-inch shank

and how large is the work surface

Compatible Model: JFK350-2/4K Cold Saw

to accommodate pitched or sloped roof and floor systems

Simpson MTH Wood Underlayment Screw Collated #7 x 1-1/4 in. Gray Phosphate Trim Head 1000-Pk CCCQM Cross Column Cap Yes on both countsSimpson Strong Drive HCKMTH114S MTH Wood Underlayment Screw (Collated) #7 x 1 1 4 in., Gray Phosphate (1,000 Pack) is engineered by Simpson Strong Tie for fast and secure underlayment to subfloor installations. Unlike nails, the MTH Underlayment screw features an intricate high low thread pattern designed to prevent squeaking by holding underlayment tight to the subfloor and preventing pull out. Its compact trim head allows for a flush surface and