Brass Flange
Bushing
CNCPioneer makes custom brass flange bushings, shoulder inserts, panel bushings, threaded parts, and knurled press-fit inserts for OEM assemblies. Choose C36000, H59/H62, CW617N/CW614N, C69300, or a specified copper alloy with the flange, bore, thread, knurl, and plating your application requires. SII XRF verification, ±0.010mm bore-to-flange concentricity capability, 100% thread gauging, and a 24-hour quote keep the project moving.
Custom Brass Flange
Bushing Solutions
A brass flange bushing is a machined sleeve or threaded insert with an integral flange, shoulder, or head. The flange controls insertion depth, spreads load, resists pull-through, and creates a stable seat in plastic housings, panels, enclosures, valves, instruments, and equipment.
Performance depends on flange geometry, bore-to-flange alignment, host-hole fit, wall thickness, knurl, thread class, plating allowance, pull-out force, spin-out torque, and assembly method. CNCPioneer confirms the complete part, process, inspection, and packaging before production.
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Flange and host-hole DFM We review flange OD, thickness, shoulder height, edge radius, seat flatness, sleeve length, host-hole tolerance, insertion direction, and pull-through load.
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100% flange, bore, and thread inspection Plug gauges check internal threads, ring gauges check external threads, and flange, bore, shoulder, and seat dimensions are inspected to the drawing.
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Swiss CNC and MAZAK production Swiss CNC supports small parts; MAZAK mill-turn handles larger flanged, knurled, slotted, cross-drilled, and threaded geometries.
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24-hour quote response Send a drawing, STEP file, host-hole dimensions, mating screw, flange load, insertion method, plating requirement, or annual usage for pricing within 24 hours and DFM within 48 hours.
Why CNCPioneer for
Brass Flange Bushings?
One production partner for flange and host-hole DFM, brass selection, thread control, retention, plating, inspection, and OEM documentation. Built for electronics, plastic molding, automotive, electrical, fluid, medical, instrument, and industrial programs.
Flange Geometry for Stop and Load Distribution
The flange controls seating depth, spreads installation force, resists pull-through, and creates a reference face. We review OD, thickness, shoulder length, edge radius, flatness, sleeve length, undercut, and host material to protect the housing and carry the required load.
Knurled, Press-Fit, Heat-Set, and Overmold DFM
For plastic, composite, die-cast, or sheet-metal hosts, we match diamond, straight, or helical knurl with flange stop, interference, host-hole tolerance, heat-set lead-in, plastic flow, pull-out, spin-out, and insertion direction.
100% Thread Gauge and Flange Control
Overall length alone does not guarantee assembly. We check thread fit, flange OD and thickness, bore alignment, seating face, lead-in, and post-plating fit with calibrated gauges. Capability can reach ±0.005mm thread pitch diameter and ±0.010mm bore-to-flange concentricity.
C36000, CW617N, and Lead-Free Brass Options
C36000 supports efficient high-volume turning and clean threads; H59/H62 serve regional programs; CW617N/CW614N suit European valve and fitting specifications; C69300 supports low-lead requirements. SII XRF verifies incoming lots and grade selection is matched to strength, conductivity, plating, corrosion, compliance, and volume.
Plating, Conductivity, and Thread-Fit Control
Nickel supports corrosion resistance, tin solderability, silver conductivity, and anti-tarnish protection. We review plating thickness against thread and flange tolerances, mask seating or electrical areas, verify appearance, and re-gauge after plating. Conductivity, solderability, RoHS/REACH, and lead-free requirements can be included.
OEM Documentation and Traceability
SII XRF, material, dimensional, flange, bore, thread, plating, RoHS/REACH, C of C, PPAP Level 3, AS9102 FAIR, and lot records are available. Packaging can follow your receiving process.
Brass Flange Bushing
Product Portfolio
Plain and threaded flange bushings, shoulder inserts, knurled press-fit parts, heat-set bushings, panel and electrical inserts, and fully custom flanged brass components.
Plain Flange Bushings — Stops, Spacers, and Sleeves
For panels, housings, pivots, spacers, shaft guides, and alignment assemblies. We control bore, OD, flange size and thickness, sleeve length, shoulder height, flatness, and bore-to-flange concentricity, with through bores, blind bores, counterbores, steps, grooves, and custom faces available.
Internal-Thread and External-Thread Flange Bushings
Positive-stop screw interfaces for plastic housings, panels, valves, instruments, and machines. Internal, external, male-female, blind-thread, and reducer designs are checked for class, engagement, seating, runout, wall thickness, plating allowance, chamfer, and mating fit.
Knurled, Press-Fit, Heat-Set, and Overmolded Bushings
For injection-molded plastics, composite panels, ultrasonic insertion, heat-set installation, and overmolding. Diamond, straight, and helical knurls can combine with flange stops, undercuts, serrations, lead-ins, blind threads, and closed ends, matched to host-hole tolerance, pull-out, spin-out, temperature, and direction.
Industries & Applications
For OEM assemblies that need a durable threaded or bearing interface with a positive stop, load-spreading flange, plastic retention feature, electrical connection, or controlled panel seat.
Electronics
For grounding posts, terminals, connectors, batteries, EMI interfaces, panels, power supplies, LED equipment, and cabinets. Flange geometry controls seating while brass provides conductivity and durable threads; plating, marking, RoHS/REACH, and protective packaging are available.
Robotics
For molded housings, appliances, consumer products, medical enclosures, automotive modules, and industrial controls. Flange stop, knurl, lead-in, undercut, host-hole, and insertion method are matched to pull-out and spin-out targets, plastic, and wall thickness.
Automotive & EV
IATF 16949 components for sensors, reservoirs, batteries, ECUs, panels, actuators, grounding points, and thermal systems. PPAP Level 3, Cpk studies, flange and thread inspection, plating certificates, traceability, bar-coded packaging, and scheduled delivery are available.
Semiconductor
For valves, manifolds, pressure sensors, regulators, hose connections, water equipment, and fittings. CW617N/CW614N and lead-free C69300 support European or low-lead requirements, with common threads, O-ring grooves, sealing chamfers, flange seats, plating, and 100% thread gauging.
Medical
Miniature bushings for diagnostics, lab automation, optical instruments, analytical devices, pumps, and serviceable housings. Small threads, burr-free lead-ins, plating, clean surfaces, controlled seating, RoHS/REACH, compartment packaging, marking, and cosmetic inspection are supported.
Aerospace
Custom bushings for fixtures, automation, machine panels, sensor bodies, gauges, pumps, serviceable interfaces, and replacement hardware. Low-volume machining, OEM supply, and high-volume Swiss CNC production are supported with consistent flange dimensions, thread fit, material, plating, inspection, packaging, and repeat-order records.
Materials
Materials for Brass
Flange Bushings
Select free-machining, Chinese standard, European, lead-free, plated, or specified copper alloys by flange strength, thread wear, conductivity, plating, corrosion, compliance, host material, and volume.
C36000 Free-Machining Brass
C36000 offers excellent machinability, clean threads, stable flange dimensions, conductivity, and economical plating response for panel bushings, inserts, standoffs, terminals, press-fit parts, and threaded flanges. Swiss CNC bar-feed production supports flange, bore, knurl, and thread inspection.
H59 / H62 Brass
H59 and H62 support cost-sensitive programs or drawings that specify Chinese brass standards. They suit general flange inserts, sleeves, hardware, panel bushings, and non-critical fittings. XRF verifies composition, while C36000 or lead-free brass can be recommended when machinability, compliance, or strength needs differ.
CW617N / CW614N European Brass
CW617N and CW614N suit European valve, plumbing, pneumatic, fitting, and instrument programs when the drawing or purchasing standard specifies EN grades. Material review, XRF, flange and thread inspection, nickel plating, and custom packaging are available.
C69300 Lead-Free Brass
C69300 supports low-lead material requirements, potable-water-adjacent use, customer restrictions, and compliance-sensitive equipment. We review flange strength, thread wear, machinability, corrosion, plating, declarations, RoHS/REACH, and availability before production.
Special Brass and Copper Alloys
Special brass, silicon brass, manganese brass, and specified copper alloys can meet higher strength, wear, corrosion, or product-family matching needs. We review machinability, flange deformation, thread strength, plating response, availability, and cost before quoting.
Plated Brass Flange Bushings
Nickel supports corrosion resistance and appearance, tin solderability, silver conductivity, and anti-tarnish storage protection. We match plating thickness to thread and flange tolerances, mask selected areas, and perform post-plate thread and seating checks.
Surface Treatments for
Brass Flange Bushings
Surface treatment selection for brass flange bushings must account for flange appearance, corrosion resistance, conductivity, solderability, thread fit, flange seating, plating thickness, and host-assembly requirements. CNCPioneer plans masking, post-treatment gauge inspection, cleaning, laser marking, and packaging before production.
Bare Brass and Anti-Tarnish Protection
Bare brass flange bushing parts are selected when conductivity, natural brass appearance, cost, or downstream assembly makes plating unnecessary. Anti-tarnish protection can support storage and cosmetic programs. CNCPioneer controls final cleaning, flange face condition, burr-free threads, gauge inspection, and protective packaging so parts arrive clean and ready for assembly.
Nickel Plating for Corrosion Resistance and Appearance
Nickel-plated brass flange bushings are used for electrical, pneumatic, instrument, and industrial assemblies that need a brighter appearance or additional corrosion protection. CNCPioneer reviews plating thickness on the flange, bore, and threads; masking of seating or grounding areas; post-plate gauge fit; and packaging to protect the finished surface.
Tin Plating for Solderability and Low Contact Resistance
Tin-plated brass flange bushing parts are used for terminals, grounding points, solderable posts, battery contacts, and connector-adjacent components. CNCPioneer controls tin thickness, solderability, flange masking, storage protection, and post-plate thread gauge so the plated bushing remains functional in mechanical and electrical assembly.
Silver Plating for High-Conductivity Flange Bushings
Silver plating is selected when a brass flange bushing serves as a high-conductivity terminal, RF interface, grounding point, or premium contact component. CNCPioneer reviews silver thickness, selective plating, anti-tarnish protection, flange contact requirements, thread masking, and post-plate gauge inspection. Conductivity documentation and special packaging can be supplied when required.
Precision Deburring and Flange-Edge Control
Brass flange bushing parts can develop burrs around the bore, flange edge, knurl, cross hole, and thread lead-in. CNCPioneer applies controlled deburring and chamfering so the flange seats flat, screws start cleanly, and the host housing is not damaged during insertion. Critical faces and threads are protected during finishing and checked before shipment.
Laser Marking, Cleaning, and Protective Packaging
OEM brass flange bushing programs often require lot codes, part numbers, logos, clean assembly-ready surfaces, and packaging that protects flange faces, threads, knurls, and plated finish. CNCPioneer supports laser marking, ultrasonic cleaning when specified, VCI or compartment packaging, line-side labels, and traceable lot identification.
Nickel, tin, silver, anti-tarnish, plating thickness, flange masking, post-treatment thread gauge, flange seating inspection, deburring, laser marking, cleaning, and packaging are included in CNCPioneer's DFM review for brass flange bushing factory inquiries and production quote requests.
IATF 16949 & AS9100D Quality System for
Brass Flange Bushings
CNCPioneer's brass flange bushing quality system focuses on four production risks: brass alloy identity, flange and host-hole retention, thread and plating fit, and OEM documentation traceability. This supports brass flange bushing china sourcing programs from prototype approval to long-term volume supply.
Brass Alloy Verification + Flange and Retention DFM
SII XRF material verification is applied to brass incoming lots, with material certificates archived when required. CNCPioneer's DFM confirms alloy, flange OD, flange thickness, shoulder height, sleeve length, host-hole tolerance, knurl design, insertion method, pull-out force, spin-out torque, wall thickness, plating, and post-treatment gauge plan before machining.
- SII XRF verification for C36000, H59/H62, CW617N, CW614N, C69300, and custom brass grades
- Flange stop, host-hole fit, insertion direction, pull-out, spin-out, and assembly torque confirmed in DFM
- Plating thickness, conductivity, solderability, and post-plate flange/thread gauge plan documented before tooling
Swiss CNC and MAZAK Control for Flange, Bore, and Thread
Swiss CNC guide-bushing machines and MAZAK mill-turn centers are selected according to bushing size, flange diameter, length-to-diameter ratio, and feature complexity. Small brass flange bushings are produced from bar stock with close tool support; larger flanged, cross-drilled, slotted, knurled, or internal/external threaded parts are produced in stable mill-turn setups. Targets include thread pitch diameter ±0.005mm, bore-to-flange concentricity ±0.010mm, OD ±0.010mm where required, and flange face perpendicularity 0.010mm/25mm.
- Swiss CNC guide-bushing support for miniature brass flange bushings
- MAZAK mill-turn single-setup machining for complex flange and thread geometry
- First-piece optical, CMM, or dedicated fixture inspection for flange, bore, knurl, and special features
100% Thread Gauge and Flange Seating Inspection
Brass flange bushings are inspected with calibrated plug gauges for internal threads and ring gauges for external threads. Flange OD, thickness, shoulder height, bore, concentricity, seat flatness, lead-in chamfer, knurl, burrs, and plating buildup are checked according to the drawing. CNCPioneer applies post-treatment re-gauging after nickel, tin, silver, or other plating operations and can include host-hole assembly tests for qualified programs.
- 100% internal thread plug gauge or external thread ring gauge per brass flange bushing
- 100% post-plate thread gauge and flange seating review when specified
- Flange OD, sleeve OD, thickness, shoulder, bore, concentricity, knurl, and burr-free edge inspection included
Documentation — Dimensional Report, Plating Cert, PPAP, FAIR, and Traceability
CNCPioneer supports full dimensional reports, material certificates, SII XRF alloy reports, plating certificates, plating thickness reports, flange and bore records, thread gauge records, RoHS/REACH documentation, lead-free declarations when applicable, PPAP Level 3 for IATF 16949 automotive programs, AS9102 FAIR for AS9100D aerospace programs, and Certificates of Conformance. Lot traceability is maintained through material batch, machining batch, plating batch, inspection record, and packaging label.
- Dimensional report, flange/bore report, thread gauge report, plating certificate, and COC available
- PPAP Level 3 for automotive, EV, and high-volume brass flange bushing programs
- AS9102 FAIR available for aerospace, instrument, and precision equipment programs
Brass Flange Bushing FAQ
Common questions from OEM buyers, engineers, and sourcing teams about brass flange bushing design, brass flange bushing china sourcing, brass flange bushing factory capability, flange dimensions, host-hole fit, knurl retention, brass alloy selection, plating, thread gauge inspection, prototype lead time, and volume production cost.
The fastest quote comes from a 2D drawing or STEP file with material, ID, OD, sleeve length, flange OD, flange thickness, shoulder height, thread size and class, knurl details, host-hole dimensions, plating requirement, installation method, and quantity. If a drawing is not available, CNCPioneer can quote from the mating screw, panel or plastic thickness, insertion method, pull-out force, spin-out torque, flange load, conductivity requirement, and annual usage.
Flange and host-hole design depends on host material, sleeve OD, insertion method, wall thickness, flange stop, pull-out force, spin-out torque, temperature, and assembly access. A press-fit bushing needs a controlled interference allowance; a heat-set insert needs a lead-in and plastic flow space; an overmolded bushing needs a flange and knurl that fill correctly without creating voids. CNCPioneer reviews these details in DFM instead of applying one generic flange or knurl size.
C36000 is the common default for most flanged inserts because it machines cleanly and provides reliable threads, flange dimensions, conductivity, and cost. H59/H62 support cost-sensitive China-standard programs, CW617N/CW614N support European valve and fitting requirements, and C69300 is selected for low-lead or compliance-sensitive applications. CNCPioneer's DFM compares flange load, thread wear, host material, plating, corrosion, compliance, machinability, and annual volume before confirming the grade.
Prototype brass flange bushing parts typically take 3–5 business days after drawing confirmation and material availability. Knurled, threaded, plated, heat-set, or complex flange prototypes commonly take 5–8 business days. Volume production lead time depends on brass stock, Swiss CNC or MAZAK cycle time, knurl tooling, plating batch schedule, inspection documentation, packaging, and annual quantity. CNCPioneer provides 24-hour quote response and 48-hour DFM for most brass flange bushing factory inquiries.
Get a Quote for Brass Flange Bushings
Upload your brass flange bushing drawings, 3D CAD models (STEP, IGES), mating screw specification, panel or host-hole size, flange dimensions, brass alloy requirement, knurl or press-fit notes, plating requirement, conductivity requirement, or annual usage and receive a competitive quote within 24 hours plus brass flange bushing DFM feedback within 48 hours.