The 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 in many metal applications, helping reduce installation time while maintaining reliable holding strength. A low-profile hex washer head provides secure tool engagement and a compact installed appearance. Silver VistaCoat creates an additional barrier that helps reduce galvanic corrosion when the fastener is used with aluminum, while the fasteners high ductility helps reduce the risk of delayed embrittlement failure.

Key Features

Designed for light- and medium-gauge metal connections
Bi-Met 300 construction combines a 304 stainless steel head and body with a hardened carbon steel drill point
Higher drilling capacity than conventional stainless steel fasteners
Self-drilling SD2 point eliminates pre-drilling in many metal applications
Silver VistaCoat helps reduce galvanic corrosion when used with aluminum
High ductility helps reduce delayed embrittlement failures
Low-profile hex washer head provides secure installation and a compact finished appearance
Suitable for curtain wall, building envelope, ACM/MCM framing, and dissimilar-metal connections
Available sizes: #10 x 3/4″, #10 x 1″,#10 x 1-1/2″