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Type SMTSO - Unified
PennEngineering
All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Fasteners for Mounting into Printed Circuit Boards > Nuts and Spacers/Standoffs, Surface Mount – Types SMTSO, SMTSOB, SMTSS™, SMTSK™, SMTBSO™ > ReelFast® Surface Mount Nuts and Spacers/Standoffs -
Type SMTSO - Unified > Part # SMTSO-440-4ET  

Part # SMTSO-440-4ET, ReelFast® Surface Mount Nuts and Spacers/Standoffs -
Type SMTSO - Unified

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Type SMTSO - ReelFast® surface mount nuts and standoffs are available threaded and unthreaded.

Packaged on 330 mm recyclable reels. Tape width is 24 mm. Supplied with polyimide patch for vacuum pick up. Reels conform to EIA-481.




 Specifications   

Thread Size
.112-40 (#4-40)

Thread Code
440

Length Code
4

L - Length ± .005

 View
.125 in

Min. Sheet Thickness
.060 in

A Max.
.060 in

C Max.
.161 in

E ± .005
.219 in

øH - Hole Size in Sheet + .003 - .000
.166 in

øD - Min. Solder Pad
.244 in

Parts per Reel
1000

Pitch
12 mm

For Use in Sheet Hardness1
P.C. Board

Thread Specification
Internal, ASME B1.1, 2B

Fastener Material
Carbon Steel

Standard Finish
Electro-Plated Tin, ASTM B545, Class A with Clear Preservative Coating, Annealed

CAD Supplier
PennEngineering® (PEM®)
1 For use in P.C. Board



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PEM Bulletin K