Small Parts 3724FSWS Steel Thread Cutting Screw, Zinc Plated Finish, Serrated Hex Washer Head, Slotted Drive, Type F, 3/8"-16 Thread Size, 1-1/2" Length (Pack of 10)

Good quality, good performance.I used several of these and they worked well.I drilled a pilot hole and the bolts cut the threads using electric impact wrench.

Used these working on a Jeep to pull and hold together 3/16" steel frame stiffeners. They did the job perfectly.