SMT Solder Nut

Overview

SMT fasteners are reflow-compatible hardware placed on the PCB with the other components and soldered in the same pass. The part must survive the reflow profile without losing plating adhesion or dimensional accuracy, and its seating face must stay flat enough to sit on the pad without solder wicking into the thread. This listing: material Brass / stainless steel, finish Tin plated / nickel plated, features SMT mounting, for AI servers and EMS, environmental compliance REACH and RoHS compliant.

Advantages

Survives the full reflow profile without plating blistering or thread distortion, which is the qualification that separates SMT-grade hardware from ordinary fasteners.

Pick-and-place compatible packaging lets the fastener be treated as a standard component in the placement program.

Eliminates a manual screw-insertion step after reflow, removing labour and a handling risk from the line.

Applications

PCB mounting of shields and heatsinks, chassis grounding points, module assembly, and any electronics housing closed by screws after reflow.

Verify the plating survives the actual reflow profile used, not a nominal one — peak temperature and time above liquidus both affect adhesion. Check that the thread is masked if solder wicking into the thread is a risk.

Product information is supplied by Toprecision. Custom parts can be produced to drawing — contact us for samples or a quotation.