Cap Nuts

Acorn Nuts, also referred to as Crown Hex Nuts, Blind Nuts, Cap Nuts, Domed Cap Nuts, or Dome Nuts, are nuts with a domed end on one side to cover exposed internal threading. The name acorn nut comes from its shape.

Cap Nuts Diameters

Cap Nuts are available on the FCH Network with Imperial/US diameters that range from #0 to 6 and with Metric diameters that range from M2.5 to M42. The length of Cap Nuts is usually measured from the point to the underside of the head.

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Cap Nuts Finishes

Cap Nuts are available on the FCH Network in finishes or coatings that range from Plain to Phosphate

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