SFS SDA5 #12 Self-Drilling Screw, Hex Washer Head, Full 316 Stainless (500 pack)

The SFS SDA5 #12 Self-Drilling Screw is a premium full 316 stainless steel fastener engineered for attaching aluminum support systems in rainscreen facade applications. Designed for exceptional corrosion resistance and reliable drilling performance, it provides secure, long-lasting connections for aluminum brackets, rails, and subframe components in even the harshest environments.

Its optimized self-drilling point drills through up to 5 mm of aluminum while reducing installation time, and the reduced thread beneath the head helps prevent oversetting and rattling caused by wind loads. Manufactured entirely from 316 stainless steel, the SDA5 delivers outstanding corrosion resistance for coastal, industrial, and other demanding exterior environments without the need for ongoing fastener inspection.

Key Features

• Full 316 stainless steel construction for maximum corrosion resistance
• Optimized self-drilling point drills through up to 5 mm of aluminum
• Reduced thread beneath the head helps prevent oversetting and rattling from wind loads
• 5/16″ external hex drive with SR2 internal drive for versatile installation
• Designed specifically for aluminum rainscreen support systems

Applications

• Rainscreen cladding aluminum support systems
• NVELOPE brackets to aluminum
• Aluminum rail attachments
• Architectural facade and cladding support systems

Installation Information

• Install using a 02000 RPM screwdriver equipped with a depth-sensing nosepiece.