TSZS | Thermoset Zerts Studded

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Features

  • Simple press–in installation.
  • Sharp helical knurls broach into thermoset materials to provide high torque–out resistance.
  • Self–aligning design.
  • Available in a wide variety of thread sizes, stud lengths and options.

Dimensions

General
Insert Thread Insert Thread Code L Insert Length Insert Length Code Boss A Head Thickness C Head Diameter D Insert Diameter P Pilot Diameter
B Hole Dia. +0.10 -0.00 W Wall Thickness Min.
M2 x 0.4 M2 4.10 4.10 3.10 1.60 0.51 4.80 3.30 3.00
M2.5 x 0.45 M2.5 5.30 5.30 3.80 2.00 0.58 5.50 4.20 3.70
M3 x 0.5 M3 5.30 5.30 3.80 2.00 0.58 5.50 4.20 3.70
M3.5 x 0.6 M3.5 6.30 6.30 4.60 2.50 0.74 6.40 5.00 4.50
M4 x 0.7 M4 7.40 7.40 5.40 2.50 0.89 7.10 5.80 5.30
M5 x 0.8 M5 8.30 8.30 6.20 2.50 1.07 7.90 6.60 6.10
M6 x 1.0 M6 9.20 9.20 7.80 2.80 1.32 9.50 8.20 7.70
M8 x 1.25 M8 9.20 9.20 9.30 3.80 1.32 11.10 9.70 9.30
M10 x 1.5 M10 9.20 9.20 12.30 5.00 1.57 14.00 12.70 12.20

(1) all dimensions are in millimeters and reference unless toleranced

Stud Length
Stud Thread Stud Thread Code D Insert Diameter S – Stud Length
5.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 25.00
Stud Length Code
M2 x 0.4 M2 3.30 5.00 6.00 8.00
M2.5 x 0.45 M2.5 4.20 5.00 6.00 8.00 10.00
M3 x 0.5 M3 4.20 5.00 6.00 8.00 10.00 12.00
M3.5 x 0.6 M3.5 5.00 5.00 6.00 8.00 10.00 12.00 14.00
M4 x 0.7 M4 5.80 5.00 6.00 8.00 10.00 12.00 14.00 16.00
M5 x 0.8 M5 6.60 5.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00
M6 x 1.0 M6 8.20 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 25.00
M8 x 1.25 M8 9.70 8.00 10.00 12.00 14.00 16.00 18.00 20.00 25.00
M10 x 1.5 M10 12.70 10.00 12.00 14.00 16.00 18.00 20.00 25.00

(1) all dimensions are in millimeters and reference unless toleranced.
(2) custom stud lengths available by request.

Boss Design Recommendation

The TSZ Thermoset Zert is designed to be installed into a straight hole with a 1° inclusive taper. The top of the hole should not be countersunk or counterbored as this will decrease the insert’s performance. The recommended hole size applies at the point reached by the bottom of the insert. Molded holes should be used wherever possible as drilled holes may result in diminished performance. Minimum boss wall thicknesses shown are for reference and may vary depending on the type of plastic.

Installation

Press the insert into the boss using a squeezing action– never a hammer blow. Allow the insert to rotate in the direction of the knurl during installation by using a punch with either a polished face or thrust bearing. Ensure that the insert maintains axial alignment during installation to prevent tilting which will induce side loads on the boss. Oversize boss holes weaken the insert’s self–aligning characteristics causing side loads which may lead to possible boss cracking.

Performance

Performance data shown is for reference only. Variations in application, boss material type and size, and installation method will affect the loads. PencoM strongly encourages testing in the application.

Material & Finish


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Material CodeMaterial DescriptionFinish CodeFinish Description
SSStainless Steel

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