Size
#12 x 1-1/4" ~ #12 x 3" (M5.5 x 32mm ~ M5.5 x 75mm)
1/4 x 4" ~ 1/4 x 8" (M6.3 x 100mm ~ M6.3 x 200mm)

Indented Hex Washer Head, Self Drilling Screw, Type CSD Thread, No.5 Point, Shank Slot
#12 x 1-1/4" ~ #12 x 3" (M5.5 x 32mm ~ M5.5 x 75mm)
1/4 x 4" ~ 1/4 x 8" (M6.3 x 100mm ~ M6.3 x 200mm)
Coating Options: Zinc, Ruspert
More Coating and Recess Options Available Upon Inquiry
Self-drilling screws are widely used for steel roofing applications due to their efficiency and durability. Here's how they are typically applied:
These screws are designed to handle the challenges of outdoor environments, such as corrosion and temperature changes.