Registered Users – Sign In
PennEngineering
All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Weld Nuts > Weld Nuts – Types WN, WNS > Self-Locating Projection Weld Nuts - Unified Type WN, WNS > Part # WN-0420-0CU  

Part # WN-0420-0CU, Self-Locating Projection Weld Nuts - Unified Type WN, WNS

    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

PEM® weld nuts (Types WN/WNS) provide load-bearing threads in metal sheets too thin to tap, and permit faster assembly.

PEM brand weld nuts overcome many problems associated with other weld nuts – burn-outs, complicated electrodes and pilots, tedious time-consuming indexing and re-tapping to remove weld spatter. Their design, based on the experience of hundreds of users of weld nuts, speeds production using standard equipment, thereby reducing labor costs.

PEM stainless steel weld nuts offer the added advantage of resisting corrosion. You may specify steel or stainless steel for your requirements and be sure you are getting the weld nuts that are easiest to install. A variety of welding equipment is suitable for installation of PEM weld nuts. Best results have been obtained with a 50KVA press-type, spot-welding machine whose upper welding head moves vertically in a straight line with the lower electrode. Flat-faced electrodes with tip diameters .125” / 3.2 mm larger than the “E” dimension of the PEM weld nut should be used.





Specifications

Thread Size
.250-20 (1/4-20)

Type
WN

Thread Code
0420

Shank Code
0

A (Shank) Max.

 View
.048 in

Min. Sheet Thickness
.048 in

Hole Size In Sheet + .004 -.000
.316 in

C Max.
.315 in

E + .000 - .010
.522 in

T ± .004
.185 in

Min. Dist. Hole C/L to Edge
.261 in

Thread Specification
2B per ASME B1.1

Standard Material
Carbon Steel

Standard Finish
Copper Flash

CAD Supplier
PennEngineering® (PEM®)



 DOWNLOADS 

PEM Bulletin WN


Conflict Minerals Policy

RoHS Guide

Supplier Conflict Minerals Survey

Customer Satisfaction Survey

ISO Certificate