SIMPSON CSA5 3/8 X5 CSA | SIM-CSA5

Simpson StrongTies CSA Flat-Head Self-Drilling Connector Screws are ETAapproved (ETA04/0013) for load-bearing performance with Simpson connectors. They provide a codelisted alternative to CNA nails when designer preference or disassembly flexibility is desired. CSA5 screws deliver predictable lateral and withdrawal capacities (e.g., ~2.47kN lateral for 5.040mm), matching connector load tables and offering more consistent drive performance than nails. Ideal for both retrofit and new framing assemblies, they help installers meet structural requirements with fewer fasteners and reduced installation time.

• The conical shape under the head ensures a full contact with the connector which increases the transfer of force
• A fixed connection with larger cross-bearing capacity than for standard screws is obtained
• The Type-17 point tip suitable for installing construction connectors to timber structures
• The 6 lobe recess helps to fix the screw during insertion