Exterior Coating - Phillips Flat Head Self Drilling Screw With Wings Size:1/4-20 x 3 1/4" and approved for use in

and approved for use in treated lumber

50 Head Style: Hex Flange Fully Threaded to: 40mm Yield Strength

(##) Number of pieces in 1 pound

Weight per length: 32 lbs

(##) Number of pieces in 3 pounds

Exterior Coating - Phillips Flat Head Self Drilling Screw With Wings Size:1/4-20 x 3 1/4" and approved for use inPhillips Flat Head : #10 Diameter #3 Point has a Max. Drill Capacity of . 179 Usable Length 7 8" #12 Diameter #3 Point has a Max. Drill Capacity of . 220 Usable Length 1 7 16" #14 Diameter #4 Point has a Max. Drill Capacity of . 250 Usable Length 2 3 8" Coated for exterior use, these screws are designed for wood to metal applications. The wings ream the hole larger than the threads so the threads will not engage the wood. The wings break off when they