Monel K-500 Double-End Studs
ASME B18.31.2 · DIN 938 / 939ASTM B865 — rod / bar
Monel K-500 double-end studs for marine pump and valve closures requiring aged nickel-copper strength and separate installation and service ends.
- MOQ
- 100PCS
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- Annealed / age hardened
EN 10204 3.1 MTC + heat-number traceability
Monel K-500 in this connection
Nickel-copper corrosion resistance is combined with precipitation-hardened strength for loaded marine and pump components.
- Connection
- Seawater valve bonnets & marine pump covers
- Critical dimensions
- Overall length · central grip · each end length and fit
Which standard is on your order?
Raw Material Specifications
Finished-Stud Specifications
Threads · Metric
Threads · Inch
Dimension Reference
Heat Treatment
Annealed or age hardenedAnnealing provides a workable starting condition, while controlled aging develops the higher strength specified for age-hardened K-500.
What we can make in Monel K-500
Forms & dimension guide
Clamping stud
Use for through-bolted covers and housings with access to both nuts. The plain grip spans the joint; independently sized threaded ends accommodate unequal nut-side clearances.
Tap-end stud
Use on valve bonnets and machine housings opened repeatedly for maintenance. The insertion end remains in the body while the outer nut is removed, reducing repeated wear of the housing thread.
- Product forms
- Equal threaded ends · Unequal threaded ends · Tap-end — specified fit
- Dimensional control
- Overall length · central grip · each end length and fit
- Manufacturing
- CNC-turn the central grip and shoulders, then produce the two thread ends to their separate lengths and fits.
- Final condition
- Aging develops strength; the incoming stock condition and finished-part hardness are recorded together.
- Inspection
- Chemistry · heat-treatment lot · tensile / hardness · specified surface inspection
Where K-500 fits — and what matters
Offshore & Marine
Seawater pump and cooling-system coversMonel K-500 double-end studs connect seawater pump and cooling-system covers through a threaded body end and an accessible nut end. The plain shank spans the cover grip. The assembled contact is exposed to saltwater, deposits and neighbouring metals.
Water Treatment & Desalination
Filter housings and treatment-pump coversMonel K-500 double-end studs connect filter housings and treatment-pump covers through a threaded body end and an accessible nut end. The plain shank spans the cover grip. The water stream, cleaning cycle and retained liquid define exposure at the installed part.
Oil & Gas
Process valves and equipment closuresMonel K-500 double-end studs connect process valves and equipment closures through a threaded body end and an accessible nut end. The plain shank spans the cover grip. Utility connections and pressure-boundary parts have separate acceptance requirements on the equipment drawing.
Same double-end stud. Different material priorities.
Monel K-500 material dataMonel 400
Nickel-copper alloy used in marine equipment and flowing seawater service; strength varies with cold work.
Monel 400 Double-End StudsInconel 625
Molybdenum and niobium provide solid-solution strength, combined with resistance to chloride pitting and crevice corrosion.
Inconel 625 Double-End StudsInconel 718
Precipitation hardening gives 718 its high strength; its specified condition is central to loaded and hot-service joints.
Inconel 718 Double-End StudsFrom drawing to documented delivery
- 01Drawing & BOMGrade, condition and part dimensions
- 02Sample lotOptional · typically ~20 days
- 03Production & testingTypically 25–35 days
- 04Documents & dispatchHeat-linked lots and packing
Connection & acceptance
Seawater valve bonnets & marine pump covers: Seawater flow · final hardness · submerged / protected exposure.
Material & final condition
Aging develops strength; the incoming stock condition and finished-part hardness are recorded together.
Connection inspection
Overall length · central grip · each end length and fit. Chemistry · heat-treatment lot · tensile / hardness · specified surface inspection.
Build your K-500 double-end stud enquiry
Upload drawing insteadQuestions about K-500 double-end studs
Can the body end and nut end use different fits?
Yes, the two ends can be machined to the specified fits and lengths. Identify a tap-end or interference-fit requirement explicitly; a plain double-end stud does not define a locking body thread.
Technical references & photo credits
Catalogue photography shows product form. Application examples connect alloy properties to equipment duties; they are not customer installation records. Quantities, schedules and the inspection scope are confirmed in the quotation.