Duplex 2205 Socket Head Cap Screws
ISO 4762ASTM A276
Duplex 2205 socket head cap screws suit compact pump housings and washdown equipment where an axial drive is easier to reach than a hex head. They bring duplex strength and chloride-corrosion resistance to recessed seats and tapped connections.
- 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 Duplex 2205
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 Duplex 2205 fits — and what matters
Submersible pump motor housings
Duplex 2205 Socket Head Cap ScrewsCompact submersible housings use socket screws to keep the cover fasteners within the casing outline. 2205 is useful in compatible water duties where strength and chloride resistance are both needed. The screw must clear the counterbore radius and stop short of the bottom of the tapped hole.
Connection requirements
- Housing water exposure
- Counterbore and under-head clearance
- Blind-hole depth and engagement
Corrosive washdown packaging conveyors
Duplex 2205 Socket Head Cap Screws2205 socket screws suit recessed drive mounts and guards on washdown conveyors. Their chloride resistance is useful near cleaning spray, and the compact heads fit closely spaced mounting holes. A drainable recess helps avoid persistent residue around the drive while preserving access for dismantling.
Connection requirements
- Cleaning solution and temperature
- Axial tool clearance
- Head recess drainage
Split-case & multistage pump casings
Duplex 2205 Socket Head Cap ScrewsOn a multistage pump’s compact auxiliary covers, 2205 socket screws can provide the required clamp load in a limited head envelope. The duplex alloy suits compatible chloride-bearing pump liquids. The tapped casing material and available engagement length are particularly important when a strong screw is installed into a weaker housing.
Connection requirements
- Cover load and screw strength
- Casing material and engagement depth
- Process liquid and cover-seat dimensions
Same socket head cap screw. Different material priorities.
Duplex 2205 material dataSuper Duplex 2507 Socket Head Cap Screws
2507 socket screws are useful for compact saline-service housings that need higher strength and chloride resistance than common stainless fasteners. The cylindrical head fits a counterbore, and tightening is along the screw axis. The housing thread and head seat must be sized to carry the load available from the stronger screw.
254 SMO Socket Head Cap Screws
254 SMO socket screws suit compact wet-process covers where chloride exposure calls for more corrosion resistance than 316-type stainless. They provide access to recessed mounting points near pipework or adjacent castings. The head pocket's actual liquid exposure matters because deposits can remain after surrounding surfaces dry.
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
- S31803 / S32205 · 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 Duplex 2205 socket head cap screw enquiry
Questions about Duplex 2205 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.