Lock-On Grease Couplers

Long Series Lock-On Grease Couplers

Grease Couplers

Long Series Lock-On Grease Couplers

Extra length to access hard-to-reach grease nipples.

Technical Specifications:

  • Max Working Pressure 10,000 psi (690 Bar)
  • Zerk Compatibility Fits all DIN and SAE specification Zerk grease nipples
  • Thread Type 1/8” NPT, 1/8” BSP or M10 x 1
  • Dimensions L 51⁄2” x W 21⁄32” x H 11⁄2” ( L 138mm x W 16.4mm x H 41 mm)
  • Front Diameter 0.63” (16mm)
  • Weight 4 oz (100g)
  • Compatibility All grease gun types (pneumatic, manual and electric)
  • Seal Type Durable TPU seal for longevity under high pressure
  • Lock on Mechanism 4 x hardened spring steel jaws, resilient under high pressure
  • Patents US8955544, EP2531766 (others on application)

Trigger Activated Lock-On Mechanism

  • Simply depress the trigger to lock the coupler onto the grease nipple or to release the coupler when done
  • Easy clip-off, regardless of pressure build-up in the line, NO MORE stuck couplers
  • No need to hold while greasing. Lock-on and free up both hands to operate your grease gun
  • Patented Design

Leak-free, high-pressure seal

  • Leak-Free, High-Pressure Seal
  • Durable long-lasting seal
  • Floating seal design accommodates all Zerk type grease nipples

Four hardened spring seal jaws

  • Resilient under high pressure
  • Fits all DIN and SAE specification Zerk grease nipples

Sliding Sleeve

  • Securely locks the coupler onto the Zerk. When you pump grease … it stays on!

Female thread

  • Multiple thread sizes, to fit most grease guns



Find a Dealer

Contact Us


Privacy Policy


Grease Guns

Foot operated grease gun

Double lever grease gun

Single lever grease gun

Lubrication Injection Guns

Lubrication injection gun

Lubrication injection gun set

Grease Couplers

Lock-on grease coupler

Long series lock-on grease coupler


Grease nipple relocator block

Grease nipple thread sizer

Grease nipples

Bulk filler grease scoop

Grease hose swivels

Manual grease gun replacement hoses

Optimized by Optimole