1/4-20 X 1 Thumb Screw / No Shoulder / Type P / Full Thread / 18-8 Stainless / Plain Bi-Flex structural screws are bi-metal

Bi-Flex structural screws are bi-metal self-drilling tapping screws that provide the corrosion resistance of 300 series stainless steel and the efficiency of drill screws

DeWALT SKU-DFM4EUH355-The UltraCon SS4 anchor is a 410 stainless steel screw anchor for light to medium duty applications in concrete and masonry block base materials

10X2 1/4 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

8X1 1/4 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board

Phillips Trimfit flat head and Hex flange head

1/4-20 X 1 Thumb Screw / No Shoulder / Type P / Full Thread / 18-8 Stainless / Plain Bi-Flex structural screws are bi-metal