Stop Collars

A complete range of stop collar options to suit any centralizer application. All collars are tested in accordance with API 10D II recommendations.


A high holding force, slim diameter stop collar for specialist close tolerance applications. With no set screws and quick and simple installation without the need for specialist assembly tools, it is efficient to install.

Spire-O-Bite® Info Sheet


Need Info

Spir-O-Lok® Info Sheet

Ductile Iron (D.I.)

One piece cast ductile iron stop collar. High axial hording force

Heavy Duty (H.D.)

Heavy duty one-piece steel collar

High holding force

Steel Stop

Fabricated steel stop collar

½” UNC S.S set screws

Hinged Bolt

Self-lock in pins

Low budget

Hinged Set Screw

Easy installation

½” set screws

Hinged Spiral Nail

Quick installation

Spiral nail design