Super Duplex 2507 Socket Head Cap Screws
ISO 4762ASTM A276
Super Duplex 2507 socket head cap screws fit compact seawater housings and desalination equipment with axial tool access. They bring high-strength super duplex material to recessed heads and tapped connections where there is little room for an external hex.
- MOQ
- 100PCS
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- Solution annealed and quenched
EN 10204 3.1 MTC + heat-number traceability
Which standard is on your order?
Raw Material Specifications
Threads · Metric
Threads · Inch
Dimension Reference
Heat Treatment
Solution annealed and rapidly cooledSolution annealing followed by rapid cooling controls harmful precipitates and preserves the ferrite–austenite structure.
What we can make in Super Duplex 2507
Partial thread
Use where a plain grip must span the clamped components. Match the under-head length and thread length so the screw tightens the stack before its thread runout reaches the tapped hole.
Full thread
Use for shorter component stacks and varied tapped-hole depths. The longer usable thread offers adjustment, while the screw end must clear the bottom of a blind hole.
- Drive
- Internal hex socket
- Length basis
- Under head
- Thread systems
- Metric · UNC · UNF · UNJ
- Assembly
- Tapped holes · Nuts
- Final condition
- Solution annealed and quenched
- Inspection
- Thread gauges · Head and shank dimensions
Manufacturing route
CNC machining suits samples; a volume heading or forging route must preserve duplex phase balance through forming and final thermal processing.
Heat treatment & final condition
Solution treatment and cooling control the duplex structure. Subsequent processing must preserve the ordered corrosion and mechanical condition.
Finished geometry
Head geometry, bearing face, shank and thread fit are checked after the final machining and thermal operations.
Where Super Duplex 2507 fits — and what matters
Submersible pump motor housings
Super Duplex 2507 Socket Head Cap ScrewsSubmersible housings benefit from screw heads that stay within the equipment outline. 2507 socket screws provide high strength and chloride resistance for bolted end covers. The counterbore must support the full head face, and screw length must leave clearance beneath the threaded tip in a blind hole.
Connection requirements
- Housing thread material and depth
- Counterbore diameter and depth
- Water temperature and immersion conditions
Energy recovery devices (ERDs)
Super Duplex 2507 Socket Head Cap ScrewsEnergy recovery devices pack pressure components into a compact housing. A 2507 socket screw allows axial tightening of small covers where adjacent ports restrict spanner access. Its super duplex condition provides the material basis for strength and saline corrosion resistance; the screw’s head and thread engagement complete the connection design.
Connection requirements
- Pressure-cover drawing
- Tool access between ports
- Head seat and tapped engagement
Seawater pumps
Super Duplex 2507 Socket Head Cap ScrewsSeawater-pump accessory covers can sit close to the main flange or motor bracket. 2507 socket screws allow a compact fastening pattern in these areas. The head recess should remain accessible for a full-depth key, with seawater deposits removed before dismantling so the drive is not damaged by partial engagement.
Connection requirements
- Accessory cover load
- Axial key access
- Recess geometry and drainage
Same socket head cap screw. Different material priorities.
Super Duplex 2507 material dataDuplex 2205 Socket Head Cap Screws
2205 socket screws suit compact pump covers and washdown mounts that need both strength and resistance to chloride exposure. Their heads fit recessed seats between surrounding equipment. The actual water chemistry and finished-screw properties establish the useful duty for this duplex option.
Super Duplex S32760 Socket Head Cap Screws
S32760 socket screws suit compact marine housings and saline-process covers specified in this grade. Their strength and chloride resistance serve a loaded fastening point close to fluid ports and brackets. The recessed drive provides access where the surrounding clearance cannot accommodate a larger external head.
Inconel 625 Socket Head Cap Screws
Inconel 625 socket head cap screws fit compact seawater housings and wet-process covers where liquid can remain beneath the head or inside the drive. Chloride pitting and crevice-corrosion resistance supports these exposed fastening points. Axial access suits recessed mounts between adjacent fittings.
From drawing to documented delivery
- 01Drawing & BOMForm, dimensions and quantity
- 02Material & formingGrade, heat and manufacturing route
- 03Final inspectionGeometry, threads and ordered tests
- 04Documents & dispatchLot records and identified packing
Order documents
- Material identity
- UNS S32750 · heat number · ordered condition
- Final-part acceptance
- Final condition and any ordered phase-balance, corrosion or impact testing.
- Dimensional record
- Thread gauges · Head and shank dimensions
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your Super Duplex 2507 socket head cap screw enquiry
Questions about Super Duplex 2507 socket head cap screws
What changes when the screw is stronger than the housing?
The housing thread can strip before the screw reaches its tensile capacity. The engagement depth and housing material therefore belong in the joint assessment alongside the screw’s final strength condition.