Flanged Round Internal Thread Weld Sleeve

Core Features

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

Internal Threaded Bore – The central bore contains internal threads that accept standard bolts, screws, or threaded rods, enabling component attachment after the sleeve is welded in place.

Round Cylindrical Body – The sleeve features a round cylindrical profile with a consistent outer diameter along its length. The cylindrical shape supports installation in confined areas and accommodates the welding process.

Welding Compatibility – Designed for permanent attachment through resistance welding or other welding processes. The flange provides a contact surface for electrode placement and supports consistent weld formation.

Product Characteristics

The sleeve is manufactured with a cylindrical body and an integrated flange. 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.

Material composition is controlled to meet specified strength and weldability requirements. Carbon steel grades are available for general applications, with material selection affecting weld quality and mechanical properties. The weldable design supports attachment to base structures, providing fixed threaded attachment points.

Surface treatment options include zinc plating with various chromate finishes, phosphate coating, and other finishes based on corrosion resistance requirements.

Application Scenarios

Structural Assembly – Used in frame and structural applications where threaded attachment points are required and welding provides permanent, vibration-resistant installation.

Automotive Body and Chassis – Applied in vehicle body structures and chassis components where the welded sleeve provides threaded attachment points for subsequent assembly.

Equipment and Machinery – Employed in industrial equipment and machinery frames where permanent threaded receptacles are required and access to the reverse side of the panel is limited.

Enclosure and Panel Mounting – Used in equipment enclosures where the sleeve provides threaded attachment points and the flange distributes load across the panel surface.

Customization Options

Specifications and configurations can be adjusted based on application requirements. Outer diameter, flange diameter, thread size, and overall length are customizable. Material grades include carbon steel for general applications and stainless steel for corrosion-resistant requirements. Surface treatments are selectable according to environmental exposure conditions.

Frequently Asked Questions

Q: Are these sleeves removable after welding?
A: The weld sleeve is intended for permanent installation through welding. Once welded, removal typically requires destructive methods such as grinding or cutting.

Q: What is the purpose of the flange on this weld sleeve?
A: The flange serves as a positive stop during installation, controlling insertion depth and providing a load-bearing surface that distributes clamping force across the workpiece.

Q: What is the function of the internal threads?
A: The internal threads provide a threaded receptacle for bolts, screws, or threaded rods, enabling component attachment after the sleeve is welded in place.

Q: What welding methods are compatible with this product?
A: The sleeve can be attached using resistance welding or other welding processes compatible with the material grade and workpiece material. Welding parameters should be set based on material grade, thickness, and equipment specifications.

Q: What surface treatments are available?
A: Surface treatments include zinc plating, phosphate coating, and other finishes based on corrosion resistance requirements and environmental exposure conditions.

Installation Considerations

The sleeve should be positioned with the flange seated against the workpiece surface. The flange provides a positive stop for consistent installation depth. Pre-weld surface preparation should include removal of oil, grease, and oxide layers from the sleeve contact area and workpiece surface. Welding parameters require calibration according to sleeve material grade, thickness, and equipment specifications. For plated or coated sleeves, welding parameters should be adjusted to account for coating effects on electrical conductivity. The internal thread should be inspected for damage or contamination before use. Post-weld inspection should verify weld quality through visual examination. When used in load-bearing applications, the thread engagement length should be evaluated against the specified load requirements.