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Brass surface mount fasteners for PC boards

07 June 2015

New PEM ReelFast brass surface mount fasteners from PennEngineering are suitable for printed circuit board applications requiring superior electrical and mechanical attachment points.

These tin-plated Type SMTSOB brass nuts and spacers/standoffs install permanently on printed circuit boards in the same manner and at the same time as other surface mount components prior to the automated reflow solder process. They can serve reliably to space or stack boards, mount boards, and/or attach components.

These fasteners offer greater corrosion resistance and higher conductivity than steel counterparts and their pick-and-place installation delivers key efficiencies and economies. Among the benefits, the fasteners can reduce the risk of damage to boards (and resulting scrap) typically resulting when conventional fasteners are improperly installed.

Threaded versions are available in sizes #2-56 through #8-32 and M2 through M4 and through-hole (non-threaded) types can be specified in sizes .116in, .143in, 3.6mm, and 4.2mm.  Lengths range from .065in to .375in and 2mm to 10mm.   All are designed for use with boards of any hardness and as thin as .060in / 1.53mm.    

The fasteners are supplied on tape and reel conforming to industry standards and compatible with existing SMT automated installation equipment.  A polyimide patch affixed to the end of the fastener allows for vacuum pick-up.

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