Stainless Steel Connector With Flanged Head Bottleneck Transition CNC Precision Fastener

Stainless Steel Connector with Flanged Head, Bottleneck Transition, and Threaded Stud – CNC Precision Fastener for Mechanical Assembly

This custom stainless steel connector is a precision-machined fastener designed for secure mechanical connections in applications requiring strength, corrosion resistance, and structural integrity. The part features a three-section design, optimized for ease of installation, mechanical stability, and compatibility with threaded assemblies.

Product Structure & Key Features

Top Section – Flanged Head

• The upper portion consists of a large, circular flange head with a smooth surface finish.

• This wide head provides an increased contact area, which helps distribute pressure evenly and offers better grip for tools or fingers during manual installation or adjustment.

• It can also function as a load-bearing surface in mounted assemblies, protecting softer materials from deformation.

Middle Section – Bottleneck Transition

• A narrowed, neck-like transition connects the flange head to the threaded base.

• This bottleneck geometry not only adds an elegant mechanical profile but also allows for controlled flexibility, weight reduction, and alignment tolerance during assembly.

• It acts as a structural bridge, maintaining integrity while absorbing limited mechanical stress.

Bottom Section – Threaded Stud

• The bottom portion features a cylindrical shaft with external threads, precisely rolled or cut to standard tolerances.

• These threads allow the part to screw into a matching internally threaded component, forming a tight and secure connection.

• Available in metric or imperial thread types based on customer requirements (e.g., M6, M8, 1/4"-20 UNC, etc.).

Typical Applications

This connector is widely used across industries where durability, corrosion resistance, and high-strength fastening are required, including:

• Mechanical assemblies and frameworks

• Equipment housings and panels

• Precision enclosures or mounting points

• Industrial automation systems

• Marine, automotive, and aerospace assemblies

Its structure makes it suitable for scenarios where a flanged support, central load-bearing, and reliable threaded engagement are critical.

Our Manufacturing Capabilities

As a professional OEM/ODM manufacturer of custom fasteners and precision components, we offer fully customized solutions to meet your design and performance requirements.

Technical Capabilities Overview

• Materials:

  • Stainless steel: SS304, SS316, 303, 410, etc.

  • Other options: carbon steel, brass, aluminum, titanium (on request)

• Machining Processes:

  • CNC turning & milling (up to ±0.01mm tolerance)

  • Thread rolling or cutting (metric/UNC/UNF/custom)

  • Surface grinding, polishing, chamfering

  • Bottleneck profiling and flange shaping

• Surface Treatments:

  • Natural passivation

  • Sandblasting / brushing / polishing

  • Anti-corrosion coatings (customizable)

• Inspection & Quality Control:

  • 100% dimensional inspection (CMM, calipers, gauges)

  • Thread inspection with GO/NO-GO gauges

  • Surface roughness and material hardness testing

  • Material certifications (RoHS, REACH, etc.) available

• Production & Delivery:

  • Flexible MOQ (prototyping to mass production)

  • Fast lead times & stable export packaging

  • Engineering support for drawings, DFM, and revisions

Need custom fasteners or stainless steel connectors for your equipment?
Send us your technical drawing or sample—we’ll provide engineering feedback, a fast quotation, and full manufacturing support from prototype to mass production.

Contact us today to get started.