Dril-Flex screws are engineered and processed to help prevent hydrogen-induced brittle failures. Each fastener undergoes the unique Flex Technology Õ Â dual-hardening process, ensuring the optimal combination of ductility and hardness required for maximum performance in the field. Stalgard Õ Â coating provides additional corrosion resistance. Testing of this product, in accordance with ASTM standards, has proven that Dril-Flex screws provide the same resistance to hydrogen-assisted cracking (HAC) as a Grade 5 screw. Virtually immune to delayed embrittlement failures.

Precision-engineered and dual heat treated drill screws provide the strength, ductility and resistance to embrittlement required for critical applications. Elco Dril-Flex self-drilling screws meet the same construction specifications Hilti Kwik-Flex.

Specifications:

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Approvals and Listings
COLA approved and ICC listed

Features and Benefits:

• High-hardness points and lead threads for drilling and tapping
• Lower-hardness in load-bearing threads for ductility
• Virtually immune to delayed embrittlement failures
• Stalgard Õ Â coating provides 1000 hours of salt spray resistance (per ASTM B117)