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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.
Unit of Measure
Items
Weld nuts

Self-Locating Projection Weld Nuts - Unified Type WN, WNS

Weld nuts

Self-Locating Projection Weld Nuts - Unified Type WN, WNS

Weld nuts

Self-Locating Projection Weld Nuts - Unified Type WN, WNS

Weld nuts

Self-Locating Projection Weld Nuts - Unified Type WN, WNS

Weld nuts

Self-Locating Projection Weld Nuts - Unified Type WN, WNS
Thread Size N/A .112-40 (#4-40) N/A .138-32 (#6-32) N/A .164-32 (#8-32) N/A .190-24 (#10-24) N/A .190-32 (#10-32)
Type N/A WN
Thread Code N/A 440 N/A 632 N/A 832 N/A 024 N/A 032
Shank Code N/A 0
A (Shank) Max.
N/A .030 in a1303.jpg
Min. Sheet Thickness N/A .030 in
Hole Size In Sheet + .004 -.000 N/A .173 in N/A .193 in N/A .218 in N/A .250 in N/A .250 in
C Max. N/A .172 in N/A .192 in N/A .217 in N/A .249 in N/A .249 in
E + .000 - .010 N/A .308 in N/A .341 in N/A .371 in N/A .440 in N/A .440 in
T ± .004 N/A .063 in N/A .093 in N/A .107 in N/A .155 in N/A .155 in
Min. Dist. Hole C/L to Edge N/A .154 in N/A .171 in N/A .186 in N/A .22 in N/A .22 in
Thread Specification N/A 2B per ASME B1.1
Standard Material N/A Carbon Steel
Standard Finish N/A Copper Flash
CAD Supplier N/A PennEngineering® (PEM®)