Hinged Spiral Nail Stop Collar, For Oil Field

Hinged Spiral Nail Stop Collar is combining in two pieces and hinged at two-end making and angle of 180 degree. This hinged Stop Collar has an internal groove into and these are available in 4 ½” to 20”sizes which a spiral-locking pin is inserted. This tightens the collar to the casing firmly. It can be latched on the casing pipe without having to be slipped on.This cementing plug is easy to install. These are most effective where low annular clearance is received.These Stop Collars undergo a special Phosphate coating process to restrict from Rust then coated with special Polyester Powder. These are available in all sizes ranging from 4 ½ “to 20