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Certificate #10254
1000 Piece / $125 Minimum Order
Quality threaded inserts, made in America
Tri-Star Inserts are RoHS Compliant
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Tri-Star Industries, Inc. C Series Chevron Threaded Inserts

Chevron Threaded Inserts for PlasticC Series: Chevron Threaded Inserts for Plastics and Brittle Materials

Some thermoplastics, like polycarbonates and structural foams, are brittle – especially in thin-wall applications. Designed for straight holes using ultrasonic or thermal processes, our chevron threaded inserts for plastic add considerable strength. They are our most popular brass inserts, offering the most overall length choices.

Our chevron inserts feature two opposing bands of sharp diagonal knurls, providing high tensile pull-out load carrying capability. Little or no stress is applied to the walls of the molded holes. A lead-in pilot diameter assures true perpendicular alignment.

Recommended Hole Size – See chart below for installation hole size. Additional information can be found in our Design Guidelines.

Click here to download a printable catalog page for Tri-Star's chevron threaded inserts for plastic (100k PDF).

chevron insert dimensions
CHEVRON THREADED INSERTS
INCH   METRIC   A
±.004
B
±.004
C
±.004
Hole H
+.003
-.000
Min.
Boss
Thread
Size
Part
Number
Thread
Size
Part
Number
0-80 080 x 125C†     .116 .125 .095 .100 .200
2-56 256 x 100C M2.0 x 0.4 M20 x 100C .143 .100 .123 .126 .252
256 x 125C M2.0 x 0.4 M20 x 125C† .143 .125 .123 .126 .252
256 x 157C M2.0 x 0.4 M20 x 157C .143 .157 .123 .126 .252
4-40 440 x 135C M2.5 x 0.45 M25 x 135C .186 .135 .154 .157 .314
  M3.0 x 0.5 M30 x 118C† .186 .118 .154 .157 .314
  M3.0 x 0.5 M30 x 135C .186 .135 .154 .157 .314
440 x 157C M2.5 x 0.45 M25 x 157C .186 .157 .154 .157 .314
M3.0 x 0.5 M30 x 157C .186 .157 .154 .157 .314
440 x 170C M2.5 x 0.45 M25 x 170C .186 .170 .154 .157 .314
M3.0 x 0.5 M30 x 170C .186 .170 .154 .157 .314
  M3.0 x 0.5 M30 x 197C† .186 .197 .154 .157 .314
440 x 226C M2.5 x 0.45 M25 x 226C .186 .226 .154 .157 .314
M3.0 x 0.5 M30 x 226C .186 .226 .154 .157 .314
6-32 632 x 125C     .218 .125 .185 .188 .376
632 x 150C M3.0 x 0.5 M30 x 150C .218 .150 .185 .188 .376
M3.5 x 0.6 M35 x 150C .218 .150 .185 .188 .376
632 x 226C     .218 .226 .185 .188 .376
632 x 250C M3.0 x 0.5 M30 x 250C .218 .250 .185 .188 .376
M3.5 x 0.6 M35 x 250C .218 .250 .185 .188 .376
632 x 281C M3.5 x 0.6 M35 x 281C .218 .281 .185 .188 .376
8-32 832 x 185C M4.0 x 0.7 M40 x 185C .249 .185 .218 .221 .442
832 x 250C M40 x 250C .249 .250 .218 .221 .442
832 x 321C M40 x 321C .249 .321 .218 .221 .442
10-24 1024 x 185C† M5.0 x 0.8 M50 x 185C† .280 .185 .249 .252 .504
1024 x 225C M50 x 225C† .280 .225 .249 .252 .504
1024 x 250C M50 x 250C .280 .250 .249 .252 .504
1024 x 310C M50 x 310C† .280 .310 .249 .252 .504
1024 x 375C M50 x 375C .280 .375 .249 .252 .504
10-32 1032 x 185C†     .280 .185 .249 .252 .504
1032 x 225C .280 .225 .249 .252 .504
1032 x 250C .280 .250 .249 .252 .504
1032 x 310C .280 .310 .249 .252 .504
1032 x 375C .280 .375 .249 .252 .504
1/4-20 2520 x 226C M6.0 x 1.0 M60 x 226C† .342 .226 .312 .315 .630
2520 x 250C M60 x 250C .342 .250 .312 .315 .630
2520 x 312C M60 x 312C .342 .312 .312 .315 .630
2520 x 375C M60 x 375C .342 .375 .312 .315 .630
2520 x 500C M60 x 500C .342 .500 .312 .315 .630
1/4-28 2528 x 226C     .342 .226 .312 .315 .630
2528 x 250C† .342 .250 .312 .315 .630
2528 x 312C† .342 .312 .312 .315 .630
2528 x 375C† .342 .375 .312 .315 .630
2528 x 500C .342 .500 .312 .315 .630
5/16-18 3118 x 250C† M8.0 x 1.25 M80 x 250C† .406 .250 .374 .377 .754
3118 x 500C M80 x 500C .406 .500 .374 .377 .754
5/16-24 3124 x 250C     .406 .250 .374 .377 .754
3124 x 500C .406 .500 .374 .377 .754
3/8-16 3816 x 500C M10.0 x 1.5 M100 x 500C .498 .500 .465 .468 .936
3/8-24 3824 x 500C .498 .500 .465 .468 .936
1/2-13 5013 x 625C†     .659 .625 .623 .627 1.254
1/2-20 5020 x 625C†
1/8-NPT 1227 x 375C†     .480 .375 .450 .453 .906
1227 x 625C† .480 .625 .450 .453 .906

† Non-Stocking Item – Minimum Order May Apply

Stainless Steel Chevron Inserts – Class 3A/4H screw must pass with finger torque, standard class go gage may stop on last thread. Part numbers for Threaded Stainless Steel Chevron Inserts are the same as listed in the chart, but ending with -SS.

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101 Massirio Dr., Berlin, CT 06037 :: Tel 860-828-7570 :: Fax 860-828-7475 ::
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