"The CLEMCOConnection" features precision molded quarter-turn locking lugs. The lugs are universal to permit coupling different size hoses and couplings of different material. Screws supplied with the couölings provide maximum holding power without penetrating the hose inner tube. Other screws should not be substituted. The holes in the coupling flanges permit automatic entry of the spring steel safety wire after the locking lugs have been completely engaged.