1/4" Flex5® SD4 Metal Self-Drill Screw, HWH, Grade 5 Carbon | FS4-14

• Made from alloy steel and finished with a selective hardness heat treatment process to give the load bearing part of the fastener Grade 5 specifications (RC 26-34), with a higher hardness for the drill point and lead-in threads (min. RC52).
• Increased fastener ductility helps prevent hydrogen embrittlement
• Designed to have low driving and thread engagement torque and provide maximum clamp load
• VistaCorr™ proprietary coating provides improved appearance, 1000 hour corrosion resistance, durability and installation performance

• Heavy gauge metal applications
• Curtain wall
• Rainscreen and cladding
• Fenstration systems
• Solar panel systems connecting aluminum to steel
• Dissimlar metal applications when used with aluminum

Listed on Intertek Evaluation Report CCRR-0347

• Install fasteners with 0–2000 rpm screw gun equipped with depth sensing nose piece.
• Fastener length should provide for a minimum of 3/16" penetration of fully developed threads into metal substrate.
• Use of impact guns or hammer drills is not recommended.