SFS BMSD2-S3 Bi-Metal Self-Drilling Screw - #10 x 3/4" Hex Washer Head (250 Pack) 43001622 80″ round nose set screws

80″ round nose set screws and one M8-1

allowing your existing satellite or antenna mount to be installed without damaging roof panels or relying on sealants that can compromise performance over time

25" diameter washer head which secures insulation

precise seam cutting performance

SFS BMSD2-S3 Bi-Metal Self-Drilling Screw - #10 x 3/4" Hex Washer Head (250 Pack) 43001622 80″ round nose set screwsThe SFS BMSD2 S3 is a premium Bi Met 300 self drilling screw designed for light and medium gauge metal connections, curtain wall systems, building envelope attachments, and ACM MCM framing. Its bi metal construction combines a corrosion resistant 304 stainless steel head and body with a hardened carbon steel drill point, providing increased drilling capacity without sacrificing exterior durability. The SD2 self drilling point eliminates pre drilling