FeaturesType RP rack mounting angles are 10 ga steel with mounting holes tapped #10-32 thread and spaced per EIA standard RS-310-D universal spacingFor-free-stand enclosures, type 12 (bulletin a30),-free-stand enclosures, type 4 (bulletin A4L) and one-door-free-stand fiberglass enclosures, type 4X (bulletin A17)All mounting hardware is furnishedTwo full length angles