NUTS
DIN 1587 High Domed Cap Nuts
High Domed Cap Nuts for specified threaded assemblies, with engagement and mating dimensions reviewed.

Product Overview
A closed domed end covers the projecting male thread and provides a finished outer profile. It can reduce exposure of thread ends on machinery and fittings, but the internal cap depth limits how far the bolt may extend. The nut must seat on its bearing face before the bolt end reaches the inside of the cap.
Specify thread diameter and pitch, required material, finish and the mating bolt or rod. Include space restrictions and any inspection or proof-load requirement. The requested configuration and packaging must be confirmed before ordering.
Key Features
- Closed domed end
- Hexagon wrenching profile
- Limited internal thread depth
Specifications
- Standard
- DIN 1587:2021-11
- Grade
- Subject to specification/size
- Diameter
- Specify nominal diameter in RFQ
- Thread type
- Metric machine thread; pitch to be specified
Materials & Finishes
- Material
- Material to be agreed for the thread and service conditions
- Finish
- Subject to material, service conditions and specification
Typical Applications
- Exposed equipment joints
- Furniture hardware
- General fittings
Size Range / Technical Notes
- Size Range
- Specify nominal thread and pitch, nut height and permitted bolt projection. Exact size and material combinations require confirmation.
- Technical Notes
- Confirm usable thread depth and avoid bottoming. The closed end is not a sealing or pressure-rating claim.
Packaging & Customization
- Packing
- Packing method and pack quantity to be agreed
- MOQ
- Subject to specification/size and order quantity
- Customization Notes
- Submit drawings, finish requirements and packaging or marking requests for feasibility review. Custom production and OEM support require separate confirmation.
