Flanged Shoulder Threaded Spacer

Core Features

Internal Threaded Bore – The central bore contains pre-formed internal threads that accept standard bolts or screws, enabling component attachment through the spacer without requiring separate nut components.

Integrated Flange – A circular flange is formed at one end of the spacer body, serving as a positive stop to control insertion depth and providing a load-bearing surface that distributes clamping force.

Shoulder Section – The cylindrical body extends from the flange to provide a defined standoff distance between components, maintaining consistent spacing in the assembly.

Spacer and Fastener Combination – The component combines the functions of a spacer and a threaded receptacle in a single part, eliminating the need for separate spacing and fastening components.

Product Characteristics

The spacer is manufactured with a cylindrical body and an integrated flange. The body diameter and length are dimensioned to provide the required standoff distance and load-bearing capacity. The flange is formed at one end with specified diameter and thickness, providing a positive stop and bearing surface.

The internal thread is produced with dimensions and tolerances following standard metric or imperial thread profiles. Thread classes include 6H for metric specifications and Class 2B for unified standards. Material composition is controlled to meet specified strength requirements. Carbon steel grades are available for general applications, with material selection affecting column strength and load-bearing capacity.

Surface treatment options include zinc plating with various chromate finishes, zinc flake coating, nickel plating, phosphate coating, and black oxide. Each treatment is applied according to defined coating thickness and corrosion resistance parameters.

Application Scenarios

Structural Frame Assembly – Used in frame construction where spacers provide defined standoff distances between mounting surfaces and structural members, while the internal thread enables component attachment.

Bracket and Panel Mounting – Applied in mounting configurations where spacers maintain distance between stacked brackets, panels, or enclosures, allowing fasteners to engage the internal thread without requiring separate nut components.

Automotive Components – Utilized in vehicle assembly where spacers provide consistent spacing between components and the internal thread supports bolted connections.

Industrial Equipment – Employed in machinery frames and assemblies where components require consistent vertical spacing and threaded attachment capability.

Customization Options

Specifications and configurations can be adjusted based on application requirements. Outer diameter, flange diameter, shoulder length, and thread size are customizable according to application geometry. Material grades include carbon steel for general applications and stainless steel for corrosion-resistant requirements. Surface treatments are selectable according to environmental exposure conditions, including zinc plating with various chromate finishes, zinc flake coating, nickel plating, phosphate coating, and black oxide.

Frequently Asked Questions

Q: What is the purpose of the flange on this spacer?
A: The flange serves as a positive stop during installation, controlling the seating depth of the spacer. It also provides a load-bearing surface that distributes clamping force across the workpiece.

Q: What is the difference between a threaded spacer and a standard spacer?
A: A threaded spacer incorporates internal threads that accept fasteners for component attachment, whereas a standard spacer typically has a clearance hole and requires a separate nut or threaded component for fastening.

Q: Can these spacers be supplied in non-standard lengths?
A: Custom lengths can be manufactured upon request, subject to tooling availability and minimum order quantity requirements.

Q: What is the recommended tightening torque for fasteners used with these spacers?
A: Tightening torque values are determined by the internal thread size, fastener grade, and application load requirements. Torque specifications should be obtained from engineering standards or calculation methods defined in fastener design guidelines.

Q: What surface treatments are available?
A: Surface treatments include zinc plating (clear, yellow, black chromate), zinc flake coating, nickel plating, phosphate coating, black oxide, and other options based on environmental exposure conditions.

Installation Considerations

The spacer should be positioned with the flange seated against the workpiece surface. The fastener should engage the internal thread through the clearance hole in the mating component. Torque application should follow specified tightening procedures. Thread condition should be inspected before installation; damaged or contaminated threads may affect torque readings and assembly integrity.

The shoulder length should be selected to provide the required standoff distance between components. When installing into assemblies with stacked components, the spacer maintains consistent spacing by preventing compression of the components under clamping load. For plated or coated spacers, coating thickness should be within specified tolerances to maintain thread fit and flange contact geometry.