Custom Hardware & Architectural Parts


Representative steel investment castings and CNC-machined components for handles, hinges, latches, brackets, glass fittings, mounting hardware, and custom architectural applications.


Zeren manufactures custom hardware and architectural components based on customer drawings, samples, and surface finish requirements. From complex cast profiles and precision-machined mounting features to polished, blasted, plated, or coated surfaces, we support both functional performance and consistent visual quality.


Built for clean appearance, reliable assembly, and consistent batch production.

Custom hardware and architectural parts made by investment casting and CNC machining
Custom Cast Parts for Functional and Visible Hardware Applications


Hardware and architectural components often combine structural function, assembly accuracy, and visible surface requirements. Handles, hinges, clamps, brackets, connectors, and locking components may require complex curved profiles, integrated mounting features, precisely machined holes, and consistent polished or coated surfaces.


Investment casting is particularly suitable for customized steel hardware parts with irregular geometry, smooth transitions, bosses, hooks, ribs, and other integrated features. CNC machining and surface finishing can then be applied to critical assembly areas and visible surfaces according to the final application.

Representative Hardware & Architectural Component Categories


The following categories illustrate common custom hardware and architectural components that can be produced through investment casting, CNC machining, and surface finishing. Final manufacturing feasibility depends on the drawing, material, dimensions, surface requirements, and order quantity.

Investment cast handles pulls and lever components for hardware applications
Handles, Pulls & Lever Components
Custom cast handles, lever bodies, pull fittings, and grip-related components with curved profiles, integrated mounting bosses, and visible finished surfaces.
Investment cast hinge pivot and articulated hardware fittings

Hinges, Pivots & Articulated Fittings

Hinge bodies, pivot arms, rotating joints, and articulated hardware components requiring accurate hole alignment, controlled clearances, and reliable repeated movement.
Investment cast locking latching and sliding hardware components

Locking, Latching & Sliding Components

Custom latch bodies, hooks, catches, lock components, and sliding mechanism parts with integrated slots, contact areas, mounting features, and machined functional surfaces.
Stainless steel glass clamps holders and sanitary hardware fittings
Glass Clamps, Holders & Sanitary Hardware
Stainless steel glass clamps, holders, mounting bases, and sanitary hardware fittings used in bathroom, kitchen, railing, and glass installation systems.
Investment cast brackets bases and mounting hardware components

Brackets, Bases & Mounting Hardware

Custom support brackets, mounting bases, wall fittings, structural connectors, and fixing components designed for stable load transfer and accurate installation.
Decorative connectors and custom architectural investment cast metal parts

Decorative Connectors & Custom Architectural Parts

Decorative but functional cast components for railings, lighting fixtures, interior hardware, façade systems, and customized architectural assemblies.

Selected Hardware & Architectural Part Examples

The parts below illustrate representative cast and machined hardware components manufactured according to customer drawings, samples, material specifications, and surface finish requirements.

203-

Decorative Protective Grille

Material: 304 Stainless Steel

Manufacturing: Silica Sol Investment Casting + Polishing

Features: Curved Ribs, Openwork Design

33-

Round Drain Housing


Material: 316 Stainless Steel

Manufacturing: Silica Sol Investment Casting + CNC Machining

Features: Internal Cavity, Machined Outlet

ME012 3

Adjustable Hinge Bracket


Material: 17-4PH Stainless Steel

Manufacturing: Silica Sol Investment Casting + CNC Machining + Assembly

Features: Pivot Joint, Adjustable Position

ME003 2

Reinforced Mounting Bracket


Material: Carbon Steel

Manufacturing: Silica Sol Investment Casting + CNC Machining

Features: Reinforcing Ribs, Mounting Bores

137-(1)(1)

Compact Pipe Connector Body


Material: 316 Stainless Steel

Manufacturing: Silica Sol Investment Casting + CNC Machining

Features: Multiple Ports, Compact Structure

These components demonstrate how investment casting can integrate curved blade profiles, mounting features, reinforcing ribs and complex structural details into near-net-shape steel parts. Combined with CNC machining and inspection, this approach supports reliable assembly, stable mechanical performance and consistent dimensional accuracy.

Casting, Machining & Finishing Features


Casting machining and finishing features of custom hardware and architectural parts

Complex Curved Profiles

Investment casting can produce handles, connectors, hooks, brackets, and decorative components with curved surfaces, smooth transitions, irregular contours, and integrated structural features.
Integrated Mounting Features
Bosses, ribs, hooks, mounting bases, slots, and connection structures can be integrated into the casting design, reducing separate components and additional assembly operations.
CNC-Finished Assembly Areas
Critical holes, threads, pivot bores, flat mounting surfaces, slots, and mating areas can be CNC machined to achieve the required assembly accuracy.
Controlled Visible Surfaces
Grinding, polishing, satin finishing, blasting, plating, coating, and appearance inspection can be arranged according to the approved surface standard.

From Drawing to Finished Hardware Components


Production process of custom hardware and architectural parts from casting to finishing
1. Drawing & Surface Requirement Review
Review the 2D drawing, 3D model, physical sample, assembly dimensions, visible surfaces, and final finish requirements.
2. Tooling & Wax Pattern Production
Develop tooling and wax patterns according to the approved casting design and production quantity.

3. Silica Sol Investment Casting

Produce steel castings with complex profiles, integrated mounting features, and reduced machining allowance.

4. CNC Machining & Fitting Check

Machine critical holes, threads, bores, slots, mounting surfaces, and functional contact areas.

5. Surface Finishing

Apply polishing, satin finishing, blasting, plating, powder coating, black oxide, or other approved finishing processes.

6. Final Inspection & Protective Packaging

Inspect dimensions, assembly features, surface appearance, and finish consistency before scratch-resistant protective packaging.
Individual wrapping, protective film, foam separation, or customized packaging can be arranged to reduce scratches and surface contact during transportation.

Materials and Surface Finish Options

Material and surface finish should be evaluated together according to corrosion resistance, mechanical load, visible appearance, indoor or outdoor exposure, assembly requirements, and project cost.

Materials and surface finish options for hardware and architectural metal parts

304 / 316 / 316L Stainless Steel

Suitable for visible hardware, bathroom fittings, glass clamps, outdoor components, handles, and decorative parts requiring corrosion resistance and a clean surface appearance.
17-4PH Stainless Steel
Suitable for stronger hinges, locking parts, brackets, and functional hardware components requiring higher mechanical strength and heat treatment capability.
Carbon Steel
Suitable for structural brackets, mounting bases, connectors, and functional hardware parts that will receive plating, powder coating, black oxide, or anti-rust protection.
Alloy Steel
Suitable for higher-load pivot parts, locking components, articulated fittings, and structural hardware requiring greater strength, toughness, or wear performance.
Duplex stainless steel may also be evaluated for specialized architectural components exposed to aggressive corrosion or marine-like environments.
Surface Finish Options

Polished / Mirror Finish

Satin / Brushed Appearance

Bead Blasted / Matte Finish

Plating or Powder Coating

Black Oxide or Protective Coating

The achievable surface effect depends on the casting material, part geometry, polishing access, surface preparation, coating process, and customer-approved reference sample.

Quality Control for Visible and Assembly-Critical Hardware Parts

Material selection depends on mechanical loads, corrosion exposure, operating temperature, wear conditions and the required surface finish. Zeren manufactures customized components using a range of steel materials based on customer drawings and technical specifications.

Quality control and inspection for custom hardware and architectural parts
Dimensional Inspection
Inspection of mounting holes, pivot bores, hole spacing, threads, flat surfaces, and other critical assembly dimensions according to the drawing.
Thread, Fit & Assembly Check
Threads, moving joints, mating components, locking positions, and selected assemblies can be checked using gauges, fixtures, or matching samples.
Surface Appearance Inspection
Visible surfaces are inspected for casting defects, polishing consistency, scratches, coating condition, color variation, and other agreed appearance requirements.
Material Verification
Chemical composition, hardness, heat treatment condition, and other material-related inspection reports can be provided when required.
Protective Packaging Inspection
Finished parts are checked before packaging, with suitable separation and surface protection used to reduce scratching, impact, and contact damage during transportation.
For appearance-sensitive projects, an approved sample or agreed visual inspection standard is recommended before batch production.

Frequently Asked Questions

Q1. Can you manufacture custom hardware parts from a physical sample?

Yes. We can evaluate projects based on physical samples, 2D drawings, 3D files, or a combination of these. For sample-based projects, dimensions, material, surface finish, assembly function, and production quantity should be confirmed before tooling.
Q2. Can you provide finished polished or plated hardware components?

Yes. Depending on the material, geometry, visible surface, and project requirements, we can support polishing, satin finishing, blasting, plating, powder coating, black oxide, and other suitable finishing processes.
Q3. Which stainless steel is suitable for outdoor or bathroom hardware?


304, 316, and 316L stainless steel are commonly considered for visible, bathroom, outdoor, and corrosion-sensitive hardware parts. The final grade should be selected according to the environment, corrosion exposure, surface finish, and cost target.
Q4. Can holes, threads, pivot bores, and mounting surfaces be machined after casting?


Yes. CNC machining can be used for threaded holes, pivot bores, slots, mounting surfaces, mating areas, and other dimensions requiring tighter assembly control.

Q5. How do you control the appearance consistency of visible hardware parts?


Appearance consistency can be controlled through approved samples, defined polishing or blasting standards, surface preparation control, coating inspection, visual inspection, and protective packaging. The inspection criteria should be agreed before batch production.

Need Custom Hardware or Architectural Components?

Send us your drawings, 3D files, physical samples, material requirements, surface finish expectations, and estimated quantity. Our team will review the casting structure, machining areas, visible surfaces, assembly requirements, and suitable production process for your project.
Custom hardware and architectural parts manufacturing inquiry and quote request