Hardware & Architectural Investment Casting Solutions


Custom investment cast and CNC machined metal components for door and window hardware, bathroom fittings, lighting fixtures, architectural hardware, brackets, handles, hinges, and decorative functional parts.


Zeren produces custom hardware and architectural metal components using investment casting, CNC machining, and surface finishing processes. We support OEM projects that require stable dimensions, consistent appearance, functional strength, and suitable surface treatment for indoor and outdoor applications.

Custom investment cast hardware and architectural metal components with CNC machining and surface finishing
Custom Cast Hardware Parts for Functional and Decorative Applications


Hardware and architectural components often require both functional performance and good surface appearance. Investment casting is suitable for producing small to medium-sized metal parts with complex shapes, smooth profiles, integrated mounting features, and reduced machining requirements.


For hardware projects, we can support stainless steel, carbon steel, and alloy steel castings, followed by CNC machining, polishing, plating, blasting, powder coating, or other surface finishing processes according to the final application.

Common Hardware & Architectural Applications

Door & Window Systems
Custom cast components for door and window fittings, locking parts, sliding mechanisms, mounting brackets, and connection hardware.
Bathroom & Kitchen Hardware
Stainless steel and plated metal fittings used for bathroom accessories, kitchen hardware, glass clamps, holders, and decorative fixing parts.
Lighting Fixture Hardware
Cast metal supports, decorative connectors, lamp brackets, and fixture components requiring stable shape and consistent surface finish.
Handles, Hinges & Brackets
Custom handles, hinge parts, support brackets, mounting bases, and hardware accessories produced according to drawings or samples.
Architectural Decorative Components
Decorative but functional cast metal parts for architectural interiors, exterior fittings, railings, façade accessories, and visible hardware.
Custom OEM Hardware Parts
Non-standard metal hardware parts developed for equipment manufacturers, construction product suppliers, and hardware brands.

Representative Hardware Component Types


We manufacture customized components based on customer drawings or samples. The parts below represent common types of cast and machined components used in power engineering and instrumentation projects.


Typical parts include instrument housings, sensor mounting brackets, threaded connector bodies, mounting bases, support frames, small equipment housings, and flow, pressure, or temperature-related instrument components. Depending on the design, these castings may require CNC machining for sealing faces, threaded holes, mounting surfaces, grooves, and positioning features.

Custom investment cast door and window hardware parts with machined holes and smooth stainless steel surface
Door & Window Hardware Parts
Cast fittings, lock parts, sliding components, connectors, and mounting pieces for door and window systems.
Custom investment cast bathroom hardware fittings with polished stainless steel surface for sanitary hardware applications

Bathroom Hardware Fittings

Glass clamps, holders, bases, brackets, and stainless steel fittings used in bathroom and sanitary hardware applications.
Custom investment cast lighting fixture components with clean metal surface and precise mounting features

Lighting Fixture Components

Decorative and functional cast metal parts for lighting fixtures, lamp supports, connection arms, and visible mounting hardware.
Custom investment cast handles hinges and brackets with machined features and smooth metal surface
Handles, Hinges & Brackets
Custom handles, hinge bodies, support brackets, and mounting structures requiring stable strength and clean appearance.
Custom investment cast architectural decorative hardware component with refined metal surface and functional design

Handles, Hinges & Brackets

Visible cast metal components used in architectural decoration, railing systems, façade accessories, and custom interior hardware.
Custom investment cast functional hardware part with machined holes slots and assembly features

Custom Functional Hardware Parts

Non-standard cast hardware components with integrated bosses, threaded areas, slots, holes, and assembly features.
Material Options for Hardware and Architectural Components


Material selection depends on the required strength, corrosion resistance, surface finish, working environment, and cost target. For hardware and architectural applications, stainless steel is often selected for corrosion resistance and appearance, while carbon steel and alloy steel may be used for stronger functional parts or parts requiring additional surface treatment.


Material TypeCommon GradesTypical Use
Stainless Steel304, 316, 316L, 17-4PHBathroom fittings, visible hardware, outdoor fittings, decorative components
Carbon SteelWCB, 1045, Q235Brackets, mounting bases, functional hardware parts
Alloy Steel4140, 4340, 40CrHigher-strength brackets, hinges, support parts
Duplex Stainless Steel2205, 2507Parts exposed to stronger corrosion or marine-like environments
Final material selection should be evaluated according to the actual load, environment, surface treatment, and assembly requirements. For structural or safety-critical building components, drawings and working conditions should be reviewed before production.

Manufacturing Support from Casting to Finished Hardware Parts

Many hardware components require more than casting. Zeren can support mold development, investment casting, CNC machining, drilling, tapping, polishing, plating, and inspection to help customers receive parts closer to final assembly requirements.

Investment cast hardware components with CNC machining and surface finishing support for custom metal parts
Investment Casting
Suitable for complex shapes, integrated features, smooth transitions, and small to medium-sized custom metal parts.
CNC Machining
Machining support for threaded holes, mounting surfaces, shafts, slots, and assembly areas requiring tighter tolerances.
Surface Preparation
Grinding, polishing, blasting, and surface cleaning can be arranged according to visible surface and coating requirements.
Assembly Support
For some hardware projects, we can assist with simple assembly, fitting checks, or packaging according to customer requirements.
Surface Finishing for Visible Hardware Components

For hardware and architectural parts, surface finish can be as important as dimensional accuracy. Depending on the application, we can support polishing, satin finishing, blasting, electroplating, chrome plating, nickel plating, powder coating, black oxide, and anti-rust protective packaging.

Polished plated and blasted hardware casting parts showing surface finishing options for visible metal components
Surface FinishTypical Purpose
PolishingImproves visible surface appearance
Satin / Matte FinishCreates a consistent non-glossy appearance
Sand Blasting / Shot BlastingProvides uniform texture before coating or plating
Chrome / Nickel PlatingImproves appearance and corrosion resistance
Powder CoatingAdds color and protective coating
Black OxideUsed for selected steel hardware parts
Anti-Rust Oil / Protective PackagingHelps protect carbon steel parts during shipping and storage
The final surface effect depends on casting material, part geometry, polishing access, surface standard, and customer-approved samples.

Quality Control for Custom Hardware Parts

Hardware components often require stable dimensions, clean visible surfaces, correct assembly features, and consistent batch quality. We inspect castings and finished parts according to drawing requirements, sample approval standards, and agreed inspection items.

Manufacturing support from investment casting to finished steel components
Dimensional Inspection
Key sizes, hole positions, mounting surfaces, and assembly dimensions can be checked according to drawings.
Surface Appearance Check
Visible surfaces can be inspected for obvious defects, polishing consistency, coating condition, and appearance requirements.
Material Verification
Chemical composition inspection can be arranged to confirm material grade when required.
Machining Area Inspection
Threads, holes, slots, flat surfaces, and assembly areas can be inspected after CNC machining.
Packaging Check
For visible or plated hardware parts, protective packaging can be arranged to reduce scratches and surface damage during transportation.

Project Information Needed for Quotation


To provide an accurate quotation for custom hardware or architectural components, please share the available project information. Our team can review drawings, samples, material requirements, surface finish expectations, and quantity before confirming the suitable casting and machining process.

Dimensional inspection of custom investment cast hardware parts with measuring tools and engineering drawing
InformationExamples
Drawing or Sample2D drawing, 3D file, photo, or physical sample
Material Requirement304, 316, carbon steel, alloy steel, or equivalent grade
Surface FinishPolishing, plating, blasting, powder coating, black oxide
Key DimensionsHoles, threads, mounting surfaces, assembly areas
QuantitySample quantity, trial order, batch production quantity
ApplicationIndoor, outdoor, bathroom, lighting, door/window, decorative hardware
Inspection RequirementDimensional report, material report, surface standard, sample approval

FAQ About Hardware & Architectural Investment Casting

Q1: Can you produce hardware parts according to our drawings?


Yes. We mainly produce custom hardware parts based on customer drawings, samples, or application requirements. 2D drawings, 3D files, photos, or samples can all help us evaluate the project.

Q2: Can you provide polished or plated hardware parts?


Yes. Depending on the material and part structure, we can support polishing, satin finishing, blasting, chrome plating, nickel plating, powder coating, black oxide, and other surface treatments.

Q3: Which material is commonly used for bathroom or outdoor hardware?


Stainless steel such as 304 or 316 is commonly considered for bathroom, outdoor, or corrosion-sensitive hardware parts. The final grade should be selected according to the working environment and surface finish requirements.

Q4: Can you machine holes, threads, and assembly surfaces after casting?


Yes. We can provide CNC machining for holes, threads, slots, flat surfaces, and other assembly areas where tighter dimensional control is required.

Q5: Can investment casting be used for visible decorative hardware?


Yes. Investment casting can produce complex shapes and smooth profiles, but the final appearance also depends on material, polishing access, surface treatment, and approved sample standards.


Need Custom Cast Hardware or Architectural Metal Parts?

Send us your drawings, samples, material requirements, surface finish expectations, and estimated quantity. Our team will review your project and suggest a suitable casting, machining, and finishing solution.
Custom cast hardware and architectural metal parts with drawings and finished investment casting components for quotation