Metric Hex Domed Acorn Nuts DIN 1587 Class 6 Zinc

Metric Hex Domed Acorn Nuts
Metric Hex Domed Acorn Nuts
Metric domed acorn nuts, DIN 1587, are internally threaded nuts with a dome top. While domed acorn nuts tighten fastener joints as standard nuts do, they also cover the threaded end of the fastener providing a safe cover and more finished appearance.  There are some cap nuts, referred to as push-on cap nuts that serve the same purpose on unthreaded rods.

Acorn Nut Dimensions

Body Diameter (A)
Hexagon Height (Q) 
Width Across Corners (G)
Drill Depth (T)
Width Across Flats (F)
Full Thread (U)
Overall Height (H)


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