2507 super duplex cup point set screws – These 2507 super duplex set screws combine a headless fully threaded body, internal hex drive and cup point. They are used where the fastener must sit flush while applying localized holding force to a shaft, collar, gear or other mating component.

Product Specifications and Custom Options
| Product type | Headless hex socket cup point set screw |
|---|---|
| Material | 2507 super duplex stainless steel / UNS S32750 |
| Manufacturing | Bar preparation, machining or heading, thread production, point forming and passivation |
| Finish | Clean machined, passivated or project-specific |
| Applications | Shaft, collar, gear and equipment locking in chloride-bearing environments |
| Customization | Dimensions, interfaces, finish and inspection based on drawing or approved sample |
Application and Interface Review
Specify DIN 916, ISO 4029 or the governing drawing together with thread diameter, pitch, length, socket size and point geometry. A cup point may mark the mating surface, so flat, cone or dog-point alternatives should be considered when positioning, reuse or surface protection is important.
Key Product Features
- Headless fully threaded configuration
- Internal hex drive for recessed installation
- Cup point for localized holding contact
- Metric, inch and drawing-based options
Materials and Manufacturing
The production route is selected from size, quantity and standard. Threads and socket geometry are controlled with suitable gauges, and the point is formed to the specified style. Cleaning, passivation, marking and packaging follow the purchase specification.
The proposed route is Bar preparation, machining or heading, thread production, point forming and passivation. Final material, dimensions, tolerances, finish and testing remain subject to the approved drawing and purchase specification.
Typical Applications
- Marine and offshore machinery
- Desalination pumps and valves
- Shaft collars, gears and couplings
- Chemical process equipment
Quality Control and Approval
Inspection can include material certificates, PMI, thread gauges, socket fit, length, point geometry and surface condition. No universal mechanical property is assumed; acceptance follows the cited material and product standard.
Information Required for Quotation
For a practical engineering and commercial review, please provide:
- 2D drawing and 3D model, or clear sample photographs
- Material grade and operating environment
- Critical dimensions, interfaces and inspection requirements
- Target quantity and expected repeat demand
- Surface finish, packaging and destination country
Request a quotation for this product or review related AODSON resources: Industrial Fasteners, Fastener Manufacturing, Quality Control.
Frequently Asked Questions
Can this product be customized?
Yes. Geometry, interfaces, material, finish and inspection can be produced from an approved drawing or sample after feasibility review.
Which material should be selected?
The current options are 2507 super duplex stainless steel / UNS S32750. Final selection should consider corrosion, strength, temperature, wear, installation and applicable standards.
What is needed for an accurate quotation?
Please provide geometry, material, quantity, critical tolerances, finish and delivery requirements. Application details help identify risks that may not be visible on the drawing alone.




