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Blade and die are replaceable to restore factory cutting performance
Ideal for Higher Water Volume – Performs well on steep roofs
Designed specifically for 12" aluminum walk-boards
Copper and Zinc
Hardened steel blade and die with reversible cutting edges for twice the cutting life
SFS BMSD3-S3-12-SQ2 Bi-Metal Self-Drilling Screw - #12 x 1" Pancake Head (250 Pack) 43001001 Blade and die are replaceableThe SFS BMSD3 S3 12 SQ2 is a heavy duty Bi Met 300 self drilling screw engineered for heavy gauge metal connections, curtain wall systems, building envelope attachments, and other demanding exterior applications. Its bi metal construction combines corrosion resistant 304 stainless steel with a hardened carbon steel drill point, delivering exceptional drilling performance while maintaining long term corrosion resistance. The SD5 self drilling point