Known in the UK as Dome Nuts these are a popular fixing used in applications where aesthetics are important, offering an attractive finish. Dome nuts ensure a smooth snag-free surface, helping to protect both the fixing and any foreign body that may come into contact. Also known as Acorn Nuts, particularly in the USA, the metric threaded nuts are manufactured to DIN 1587. Also available is a prevailing torque Dome Nyloc Nut manufactured to DIN 986. Available in UNF, UNC aswell as Metric sizes. USA versions to ASME B18.2.2.