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Tri-Star Industries, Inc. SH & SC Series Threaded Studs

Threaded Studs for PlasticsSH & SC Series: Threaded Studs for Plastics

Threaded studs are commonly used to fulfill specific design functions, to save money in production costs, to function as electrical contacts or to replace self-tapping or removable screws. Thread lengths are available to meet your specific requirements. Special studs without threads can be used as axles, pivots, pins, locating points or solder terminals.

The body of the SH Series Threaded Stud is specifically modeled after our H Series Insert. Its key feature is the tapered design, which allows for easy insertion into tapered molded or drilled holes. They may be installed using the thermal or ultrasonic method or can be molded in place. Click here to download the catalog pages for the SH Series (176k PDF).

The body of the SC Series Threaded Stud is modeled after our C Series Insert. Its key feature is the opposing diagonal knurls, which will provide exceptional rotational and tensile resistance. The SC Series is designed for straight molded or drilled holes. They may be installed using the thermal or ultrasonic method or can be molded in place. Click here to download the catalog pages for the SC Series (95k PDF).

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

SH & SC Series: Threaded Studs for Plastics
SH SERIES THREADED STUDS
INCH   METRIC   A
±.004
B
±.004
C
±.004
Hole E
+.002 -.000
Hole F
+.002 -.000
G
±.010
Min.
Boss
Thread
Size
Part
Number
Thread
Size
Part
Number
2-56 S256 x M2.0 x 0.4 SM20 x .141 .188 .112 .123 .107
S
P
E
C
I
F
Y
*
.246
4-40 S440 x M2.5 x 0.45 SM25 x .172 .219 .146 .159 .141 .318
6-32 S632 x M3.0 x 0.5 SM30 x .219 .250 .190 .206 .185 .412
M3.5 x 0.6 SM35 x .219 .250 .190 .206 .185 .412
8-32 S832 x M4.0 x 0.7 SM40 x .250 .312 .213 .234 .208 .468
10-24 S1024 x M5.0 x 0.8 SM50 x .297 .375 .251 .277 .246 .554
10-32 S1032 x .297 .375 .251 .277 .246 .554
1/4-20 S2520 x M6.0 x 1.0 SM60 x .375 .500 .332 .363 .321 .726
1/4-28 S2528 x .375 .500 .332 .363 .321 .726
5/16-18 S3118 x M8.0 x 1.25 SM80 x .469 .562 .406 .448 .401 .896
5/16-24 S3124 x .469 .562 .406 .448 .401 .896
3/8-16 S3816 x M10.0 x 1.5 SM100 x .563 .625 .493 .540 .488 1.080
3/8-24 S3824 x .563 .625 .493 .540 .488 1.080
* When ordering, customer needs to specify the "G" dimension to form the part number.
Example: 8-32 with a thread length 1/2" (.500”) = S832 x 500H
Part numbers for Stainless Steel Inserts are the same as listed in the chart, but ending with -SS.
Threaded Studs for Plastics
SC SERIES THREADED STUDS
INCH   METRIC   A
±.004
B
±.004
C
±.004
G
±.010
Hole H
+.002 -.000
Min.
Boss
Thread
Size
Part
Number
Thread
Size
Part
Number
2-56 S256 x M2.0 x 0.4 SM20 x .143 .157 .123
S
P
E
C
I
F
Y
*
.126 .252
4-40 S440 x M2.5 x 0.45 SM25 x .186 .226 .154 .157 .314
M3.0 x 0.5 SM30 x .186 .226 .154 .157 .314
6-32 S632 x M3.5 x 0.6 SM35 x .218 .281 .185 .188 .376
8-32 S832 x M4.0 x 0.7 SM40 x .249 .321 .218 .221 .442
10-24 S1024 x M5.0 x 0.8 SM50 x .280 .375 .249 .252 .504
10-32 S1032 x .280 .375 .249 .252 .504
1/4-20 S2520 x M6.0 x 1.0 SM60 x .342 .500 .312 .315 .630
1/4-28 S2528 x .342 .500 .312 .315 .630
5/16-18 S3118 x M8.0 x 1.25 SM80 x .406 .500 .374 .377 .754
5/16-24 S3124 x .406 .500 .374 .377 .754
3/8-16 S3816 x M10.0 x 1.5 SM100 x .498 .500 .465 .468 .936
3/8-24 S3824 x .498 .500 .465 .468 .936
* When ordering, customer needs to specify the "G" dimension to form the part number.
Example: 8-32 with a thread length 1/2" (.500”) = S832 x 500C
Part numbers for Stainless Steel Inserts are the same as listed in the chart, but ending with -SS.
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