Printed from www.nzmeccano.com
UJ Shoulder Bolts
Universal Couplings should have Part 140z Shoulder Bolts, NOT standard Set Screws. Check when you're buying them as the genuine Shoulder Bolts sometimes get lost and substituted with standard bolts so beware as they cause sloppy movement. It's also a good idea to flatten the forks. They were originally produced with flat forks but for some reason Meccano changed them to rounded forks which are not as efficient.
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