DIN1587 Hexagon Cap Nuts

DIN 1587 Hexagon Cap Nuts are high-type dome nuts designed to cover and protect the exposed ends of bolts and studs while providing a clean, finished appearance. The extended domed cap provides more internal clearance than low-type cap nuts, making the design suitable where a longer section of exposed thread needs to be enclosed.

The six-sided body allows easy installation and removal with standard wrenches or sockets, while the enclosed top helps protect exposed threads from dirt, moisture, contact, and accidental damage. DIN 1587 Cap Nuts can be supplied in carbon steel, alloy steel, and stainless steel, with different property classes and surface finishes available according to mechanical and environmental requirements. These high-type cap nuts are suitable for machinery, equipment, guards, panels, brackets, fabricated assemblies, and applications where exposed threads need both protection and a finished appearance. When selecting a DIN 1587 Cap Nut, customers should consider the thread diameter and pitch, cap height, available clearance, material, mechanical requirements, and surface treatment.

Specification of DIN1587 Hex Dome Cap Nut:

DIN 1587 Hexagon Cap Nuts are manufactured according to DIN 1587 for high-type metric cap nuts. They are available in M4–M24 with metric coarse or fine threads, a 60° thread profile, and standard 6H internal thread tolerance. The high domed cap covers the exposed end of bolts or studs while the hexagonal body allows easy installation with standard tools. Carbon steel and alloy steel versions can be supplied in suitable property classes according to ISO 898-2, while stainless steel versions are available in A2 (304) and A4 (316) grades. Surface finishes include plain, black oxide, zinc plated, and hot-dip galvanized for steel, with cleaning and passivation available for stainless steel.