Coupling Head Adjustment Screw and Nut

$5.50 inc GST

or 4 fortnightly payments of $1.38 with Afterpay More info

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Coupling Head Adjustment Screw and Nut. Suits only AL-KO couplings. 1/2 inch BSW Thread.

NOTE: Does not fit most imported couplings.

Two types of coupling screws;

  • 1/2 inch BSW thread
  • 12mm Metric

If unsure about the exact specification of your coupling, customers usually buy one of each.

The coupling head adjuster tightened the coupling head on the tow ball. Couplings wear, and tow balls wear.

So the procedure to tighten the coupling head is:-

  • First, fit the coupling to the tow ball.
  • Make sure you have full weight on the tow ball.
  • Loosen the locking nut while holding the thread with a screwdriver.
  • Tighten the threaded part until you have contact with the tow ball.
  • Loosen 1/8 of a turn and then lock the locknut onto the coupling.

Instructions courtesy of AL-KO

Coupling Head Adjustment Screw and Nut

Couplemate Trailer Parts sells only the best quality Coupling Head Adjustment Screw and Nut and spare parts throughout Australia. Express shipping to Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and Hobart. We also ship products to New Zealand via Australia Post Air Express.

Additional information

Weight 0.1 kg
Dimensions 5 × 2 × 2 cm
Screw Size



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