Full 1/4 in (No 8) head will not strip out of hex driver opening.
One 1/4 in hex driver accommodates all sizes.
Undercut - always seats flush.
Some screws sizes available in pails.
Trademarked and patented head markings indicate one and only genuine zip-ins.
Combination lead double thread design single starting thread machined down to very tip of screw point, Instantly penetrates and engages in heavy gauge sheet metal and layered light gauge.
Consistent hard point quality controlled heat treat.