Forestry Coupling- U.S.D.A. listed. Meets USFS Spec. 5100-108. Certificates of conformance furnished on request. Made of high-strength, lightweight air-craft aluminum 6061-T6 alloy. Hard-coated in our plant for corrosion and abrasion resistance. Complete with expansion rings and gaskets. Two rocker lugs on swivel only.
1” and 1-1/2” sizes
Available in complete sets only.
National Standard Thread- NH or NST
Iron Pipe Thread- NPSH or SIPT