Drive Sizes: #8 - T20 #10 - T25

8 x 1 1/4 Simpson Pan-Head Marine Screw - Phillips Drive 316 SS - Box (100)

Over-sized thread diameter tightly fills the existing spike holes for better holding strength and a watertight fit #3 square drive virtually eliminates cam-out during hard to reach installations Durable UV resistant white and brown head paint matches most gutter systems Thick galvanized base coating guaranteed not to rust or react with aluminum Free driver bit included American made

21/64 Heavy Duty Jobber Drill Bit

Low-profile head

#32 x 6 High Speed Aircraft Bit Cobalt (6) 3/4-16 Socket Cap Screws Alloy Drive Sizes: #8 - T20#32 x 6 High Speed Aircraft Bit Cobalt . Manufactured to NAS 907 Type J specifications Jobber flute lengths for drilling holes in hard to reach places Heavy duty construction for portable or machine drilling For use in drilling in high tensile strength alloy steels, stainless steels, titanium and other difficult to machine materials Made in the USA