SFS BMSD3-S3-12 Bi-Metal Self-Drilling Screw - #12 x 1-1/4" Hex Washer Head (250 Pack)

The SFS BMSD3-S3-12 is a premium Bi-Met 300® self-drilling screw designed for light- and medium-gauge metal connections, curtain wall systems, building envelope attachments, and standard facade subframe installations. Its bi-metal construction combines corrosion-resistant 304 stainless steel with a hardened carbon steel drill point, delivering increased drilling capacity while maintaining the long-term corrosion resistance required for exterior applications.

The SD3 self-drilling point eliminates pre-drilling in many metal applications, helping reduce installation time while maintaining reliable holding strength. Silver VistaCoat® provides an additional barrier that helps reduce galvanic corrosion when the fastener is used with aluminum, while the fastener's high ductility helps reduce the risk of delayed embrittlement failures. The hex washer head provides secure tool engagement and dependable load distribution for structural fastening applications.

Key Features

• Designed for light- and medium-gauge metal connections
• Bi-Met 300® construction combines 304 stainless steel with a hardened carbon steel drill point
• Higher drilling capacity than conventional stainless steel fasteners
• SD3 self-drilling 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
• Hex washer head provides secure installation and dependable load distribution
• Suitable for curtain wall, building envelope, standard facade subframe attachments, and metal panel attachment in corrosive environments
• Available sizes: #12 x 1", #12 x 1-1/4", #12 x 1-1/2", and #12 x 2"