Jet 390145-10" Csg Series C-Clamp Plumbing Tools Couplers have 4-ball "positive locking"

Couplers have 4-ball "positive locking" mechanism

The plug has 3/8" male NPT threads on one end for connecting to a female hose fitting and a coupler connection

11-1/2 threads per inch

Our srl's use a locking mechanism similar to that of a seatbelt

Assemble with 3 jaws for maximum stability

Jet 390145-10" Csg Series C-Clamp Plumbing Tools Couplers have 4-ball "positive locking"SG Cast Iron clamps with Spheroidal Graphite structure produces 60,000 PSI tensile strength twice the tensile strength of ductile iron clamps. Guaranteed unbreakable in normal use Reinforced frame corners Cross handle designed to bend before the frame can be over stressed Acme threaded screw for smooth operation and even clamping pressure Black oxide coated screw and handle resists weld spatter and corrosion