Trev's Vintage Machine Shop

This is a set of 1BA, 2BA and 6BA (British Association) dome nuts, also known as acorn cap nuts. Each nut has a nicely rounded cap that protects the end of the male thread. These are good quality nuts made from stainless steel.

They are available in the following sizes:

Thread SizeNominal thread diameterWidth across flatsDepth
1BA0.2087 in (5.3 mm)0.373 in (9.48 mm) across flats0.378 in (9.6 mm) deep
2BA0.1850 in (4.7 mm)0.310 in (7.89 mm) across flats0.318 in (8.08 mm) deep
6BA0.1102 in (2.8 mm)0.194 in (4.94 mm) across flats0.199 in (5.05 mm) deep

They are sold in sets of 2, 4, 6, 8 or 10 nuts. These are new old stock vintage nuts, made in England. Most nuts look brand new, a few may have slight marks from storage. All items are dispatched quickly via Royal Mail 2nd Class, with tracked postage available at extra cost.

Not what you want? Return the item unused for a refund.

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Free postage to UK mainland only. If you have any questions then please ask.