8 Pack 3/4″ Push-on Cap Nuts – Axle Caps – Wheel Retainers – 836151 8 Pack 3/4″ axle caps, zinc plated. Tap on with a hammer, fits 3/4″ diameter shafts/axles. Made in the US and stocked in our warehouse for immediate delivery. 8 Pack 3/4″ axle caps, zinc plated. Tap on with a hammer, fits 3/4″ diameter shafts/axles. Made in the US and stocked in our warehouse for immediate delivery.eBay integration by