Super Duplex 2507 Thin hex nuts
ISO 4035ASTM A276
Limited axial space is the reason to use a Super Duplex 2507 thin nut. Its super-duplex strength and resistance to chloride pitting must be paired with the reduced thread engagement and the intended locking arrangement.
- 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
Reduced-height body
Use in compact adjustment mechanisms and panel assemblies where axial clearance rules out a full-height nut. Check the required proof load against the reduced engagement rather than selecting on clearance alone.
Jam-nut arrangement
Use with a second nut to lock an adjustment on a threaded shaft or linkage. The specified nut order and tightening sequence are part of the locking arrangement, not simply two nuts tightened independently.
- Pattern
- Thin hex · Jam nut
- Key dimensions
- Thread · Across flats · Height
- Threads
- Metric · UNC · UNF
- Assembly
- Adjusters · Paired nuts
- Final condition
- Solution annealed and quenched
- Inspection
- Nut height · Across flats · Thread plug gauging
Manufacturing route
Small lots use machined blanks. Volume nut blanks use a forming route compatible with the alloy before machining the bore and tapping.
Heat treatment & final condition
Solution treatment and cooling control the duplex structure. Subsequent processing must preserve the ordered corrosion and mechanical condition.
Finished geometry
Internal thread gauging, usable engagement and bearing-face alignment are checked after final processing.
Where Super Duplex 2507 fits — and what matters
Offshore & Marine
Marine pump shafts and linkage pinsSuper Duplex 2507 thin hex nuts serve as jam or retaining nuts on marine pump shafts and linkage pins where axial space is limited. Their reduced thread engagement is part of the retention design. The assembled contact is exposed to saltwater, deposits and neighbouring metals.
Water Treatment & Desalination
Treatment-pump shafts and actuator partsSuper Duplex 2507 thin hex nuts serve as jam or retaining nuts on treatment-pump shafts and actuator parts where axial space is limited. Their reduced thread engagement is part of the retention design. The water stream, cleaning cycle and retained liquid define exposure at the installed part.
Oil & Gas
Valve actuator shafts and linkage pinsSuper Duplex 2507 thin hex nuts serve as jam or retaining nuts on valve actuator shafts and linkage pins where axial space is limited. Their reduced thread engagement is part of the retention design. Utility connections and pressure-boundary parts have separate acceptance requirements on the equipment drawing.
Same thin hex nut. Different material priorities.
Super Duplex 2507 material dataInconel 625
Solid-solution strength and resistance to aggressive process liquids.
- Connection priority
- Thread load in a reduced-height body
- Annealed or solution-annealed 625
- The delivery condition affects strength and high-temperature response. Keep the specified condition with the component’s mechanical acceptance; 718-style aging is not the strengthening route for 625. Include liquid retained at the short internal engagement and paired-nut faces in the exposure description.
Monel K-500
Age-hardened strength in the nickel–copper alloy family.
- Connection priority
- Thread load in a reduced-height body
- Strength and hydrogen exposure
- K-500 gains strength through aging. Cathodic protection, hydrogen exposure and the ordered condition need joint consideration in highly loaded marine components. Include liquid retained at the short internal engagement and paired-nut faces in the exposure description.
Duplex 2205
Duplex strength and chloride-corrosion resistance.
- Connection priority
- Thread load in a reduced-height body
- S31803 or S32205
- The specified UNS fixes the chemistry. Solution treatment, section size and the ordered mechanical or corrosion tests establish the final duplex condition. Include liquid retained at the short internal engagement and paired-nut faces in the exposure description.
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
- Nut height · Across flats · Thread plug gauging
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your Super Duplex 2507 thin hex nut enquiry
Questions about Super Duplex 2507 thin hex nuts
Can a thin nut replace a regular nut at the same load?
Reduced thread engagement changes stripping capacity. Check the reduced-height nut’s material condition and the intended jam-nut arrangement instead of transferring the regular nut’s load assumption.