Couplemate Trailer Parts
Couplemate Trailer Parts

6mm Galvanised Slipper Spring | 765mm

$65.45$135.40 inc GST

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6mm galvanised slipper spring are measured 765mm eye to tip of the slipper.

Spring fatigue will stretch spings beyond 765mm.

Important Measurements

  • Length
  • Spring Thickness
  • The number of leaves.

Dacromet or Galvanised

The choice between Dacromet springs and Galvanised springs is not difficult. Dacromet springs vary greatly in quality.

As a result, Couplemate prefers Galvanised springs to last longer than most Dacroment coated springs.


  • 765mm Eye to Tail.
  • 6mm Leaf Thickness.
  • 45mm Wide.
  • The eyebolt is 1/2″.
  • 1/2 inch x 7/8 inch x 45mm bush.
  • Free Camber 150mm.
  • Eye to Center Bolt 330mm.
  • Hanger Centres 700mm.

6mm Slipper Spring Ratings.

  • 3 Leaf – 300kg.
  • 4 Leaf – 450kg.
  • 5 Leaf – 500kg.
  • 6 Leaf – 600kg.
  • 7 Leaf – 675kg.
  • 9 Leaf – 800kg.

45mm wide boat springs with 6mm leaf thickness are suitable for metropolitan travel.

How to beat vibration fatigue in boat trailers.

Compressing a spring with a hydraulic ram and measuring the torque required during compression, is one method to rate springs.

Finally, springs are galvanised and then rated.

6mm Galvanised Slipper Spring

Additional information

Weight N/A
Dimensions N/A
Slipper Springs

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