Mold-in Inserts

MTZ – Molded Thru-hole Zerts

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3D CAD Models available. Contact a PENCOM Account Representative to request.

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Features

  • Design provides excellent performance when molded in thermoplastics and thermosetting plastics.
  • Tapped open end allows screw to pass through the insert.
  • Custom lengths available by request.
mtz-features
mtz-drawing

General

Inch

Insert Thread Insert Thread Code L Insert Length ±.005 Insert Length Code D Stock Dia. Before Knurl P End Diameter ±.005 S1 S2 Thread Minor Diameter
0-80 080 .125 125 .109 .078 .030 .030 .0475 -.0510
2-56 256 .125 125 .156 .142 .030 .030 .0670-.0737
4-40 440 .188 188 .188 .171 .030 .030 .0860-.0939
6-32 632 .219 219 .219 .202 .030 .060 .105 -.114
8-32 832 .250 250 .250 .226 .050 .060 .131-.139
10-24 1024 .281 281 .281 .259 .050 .060 .146 -.156
10-32 1032 .281 281 .281 .259 .050 .060 .157-.164
1/4-20 2520 .375 375 .344 .321 .060 .090 .197-.207
1/4-28 2528 .375 375 .344 .321 .060 .090 .212-.220
5/16-18 3118 .469 469 .437 .404 .080 .090 .260-.265
3/8-16 3716 .562 562 .500 .466 .090 .090 .309-.321

(1) All dimensions are in inches and reference unless toleranced.

Metric

Insert Thread Insert Thread Code L Insert Length ±0.13 Insert Length Code D Stock Dia. Before Knurl P End Diameter ±0.13 S1 S2 Thread Minor Diameter
M2 x 0.4 M2 3.18 3.18 3.96 3.61 0.78 0.78 1.58 -1.67
M2.5 x 0.45 M2.5 4.77 4.77 4.77 4.34 0.78 0.78 2.03- 2.14
M3 x 0.5 M3 4.77 4.77 4.77 4.34 0.78 0.78 2.47-2.59
M3.5 x 0.6 M3.5 5.56 5.56 5.56 5.13 0.78 1.57 2.87-3.01
M4 x 0.7 M4 6.35 6.35 6.35 5.74 1.16 1.57 3.25 -3.42
M5 x 0.8 M5 7.13 7.13 7.13 6.57 1.16 1.57 4.15 – 4.34
M6 x 1.0 M6 9.53 9.53 8.74 8.15 1.57 2.38 4.94 -5.16
M10 x 1.5 M10 14.27 14.27 12.70 11.84 2.38 2.38 8.55-8.67

(1) All dimensions are in millimeters and reference unless toleranced.

Installation

The MTZ Molded Thru–hole 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 core pin and insert will prevent plastic from flowing into the threads.

Performance

Inch

Insert Thread Code Host Material Pull-out (lbs) Torque-out (in-lbs)
080
256
ABS 96-104 5.2- 5.6
Polycarbonate 106-115 5.6- 6.0
440 ABS 166-175 5.5-6.0
Polycarbonate 173-186 6.2-6.9
632 ABS 290-298 7.5-8.0
Polycarbonate 302-318 8.5-9.0
832 ABS 368-370 13.6-14.0
Polycarbonate 372-382 14.7-16.0
1024
1032
ABS 432-444 50-55
Polycarbonate 445-454 52-57
2520
2528
ABS 620-635 75-70
Polycarbonate 635-650 98-103

(1) 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.

Metric

Insert Thread Code Host Material Pull-out (kN) Torque-out (N-m)
M2 ABS 0.43-0.46 0.59-0.63
Polycarbonate 0.47-0.51 0.63-0.68
M2.5
M3
ABS 0.73-0.77 0.62-0.67
Polycarbonate 0.76-0.82 0.70-0.77
M4 ABS 1.63-1.64 1.53-1.58
Polycarbonate 1.65-1.69 1.66-1.80
M5 ABS 1.92-1.97 5.65-6.22
Polycarbonate 1.97-2.01 5.87-6.44
M6 ABS 2.75-2.82 7.91-8.47
Polycarbonate 2.82-2.89 11.0-11.6

(1) 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.