Self-clinching Stud Height Tolerance & Selection Specification, Flat Riveting Solution For Sheet Metal Through-hole & Blind-hole Studs

Self-clinching Stud Height Tolerance & Selection Specification, Flat Riveting Solution For Sheet Metal Through-hole & Blind-hole Studs

Self-clinching studs embed into sheet metal via cold extrusion, replacing traditional welded studs and tapped studs with high flatness and precision. Most uneven riveting and assembly gap problems are caused by wrong height selection, incorrect through/blind hole structure and mismatched tolerance rather than product defects.

1. Core Difference Between Through-hole & Blind-hole Clinch Studs

2. Mass Production Height Tolerance Standard

1. General tolerance: ±0.05mm for ordinary sheet metal assembly; 2. High-precision tolerance: ±0.03mm for high-end cabinets and instrument shells; 3. Post-clinching flatness: Parallelism ≤0.1mm without protrusion or depression.

3. Common Defects & Rectification

1. Uneven assembly: Adopt high-precision tolerance batches and recheck dimensions before clinching; 2. Screw bottom jamming: Match thread depth according to locking stroke; 3. Thin plate deformation: Use thin-plate dedicated low-profile studs to reduce extrusion stress; 4. Multi-layer gap: Apply full-thread through-hole studs for complete fitting and locking.