MPZ | Molded Performance Zerts

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  • Counter-bore facilitates placement on mold locating pin, prevents entry of plastic, and aids start of mating fastener.
  • Blind end prevents ingress of plastic and contaminating threads.
  • No cut-off pip on blind end ensures smooth operation in automatic feeding equipment.

When second sourcing PENCOM’s products, PENCOM recommends that the part is tested in the application to ensure that it will meet all performance requirements.


Insert ThreadInsert Thread CodeL Insert LengthInsert Length CodeD Insert DiameterE C’bore DepthT Thread Depth Min.Locating Pin
Degrees Inclusive
M2 x 0.4M25.505.503.401.003.600.801.552.652.3006.03.00
M2.5 x 0.45M2.56.406.404.301.204.000.902.003.002.8005.03.50
M3 x 0.5M37.307.304.701.304.601.052.453.403.1254.54.00
M3.5 x 0.6M3.
M4 x 0.7M410.2010.206.301.806.701.553.255.004.4254.55.40
M5 x 0.8M511.2011.207.302.007.401.704.155.555.1255.06.00
M6 x 1.0M614.4014.409.802.008.101.804.956.156.6005.58.00
M8 x 1.25M816.5016.5011.402.3011.102.006.709.008.5006.010.00
M10 x 1.5M1017.9017.9013.802.4011.902.108.409.7010.5006.012.00


The MPZ Molded Performance Zert is designed to be molded into the host plastic using a core pin to locate the insert in the mold. A good fit between the locating pin and insert will aid insert location and retention, and prevent plastic from flowing into the threads.

Material & Finish

Material CodeMaterial DescriptionFinish CodeFinish Description
SSStainless Steel

Contact a PENCOM Account Representative for other material & finish options.