Meets ASTM C 1513 for cold-formed steel framing connections. Meets F.I.P.-1000.7 for torsional strength & drill speed. Manufactured to SAE J78 for dimensional specifications. Meets ASTM A 510 for carbon steel manufacturing. Meets ASTM F1941 for corrosion resistance. ICC-ES Evaluation Report: ESR-3528. Material Application: Attaches metal to metal. Unslotted Indented Hex Washer Head, Zinc Plated.