Stop Rings

MI 1201 SET SCREW STOP RING

MACKERAL’s slip-on stop collar with set screw device is recommended for small hole operations. It gripped on casing by a row of set screws.
1.Available in the size range 2 7/8 ” to 20”,
2.Special Iron phosphate coating with special polyester powder coated / painted.

MI 1205 DOUBLE ROW SET SCREW STOP RING

MACKERAL’s Slip-on Double Row Set Screw stop collar device is recommended for large hole operations. It gripped on casing by a row of set screws.
1.Available in the size range 4 ½ ” to 20”,
2.Special Iron phosphate coating with special polyester powder coated / painted.

MI 1202 SPIRAL NAIL STOP RING

MACKERAL’s Spiral Nail Stop Ring can be set in both upset and non-upset casing to provide maximum clearance during rotation. It has a groove in the middle into which a spiral nail can be driven for improved grip on the casing. The broader band firmly grips the collar into position around the casing.
1.Available in the size range 4 ½ ” to 20”,
2.Special Iron phosphate coating with special polyester powder coated / painted.

MI 1204 SET SCREW STOP RING

MACKERAL’s Set Screw Stop Ring can be set in both upset and non-upset casing to provide maximum clearance during rotation. It has a groove in the middle into which a spiral nail can be driven for improved grip on the casing. The broader band firmly grips the collar into position around the casing.
1.Available in the size range 4 ½ ” to 20”,
2.Special Iron phosphate coating with special polyester powder coated / painted.
3.Additional row of set screws positions easily and firmly around the casing.