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Features

  • Simplied boss design improves productivity.
  • Excellent performance in a variety of materials.
  • Rapid self-aligning installation using heat or ultrasonic.
  • Available with both inch and metric threads.

General

Inch

Insert Thread Insert Thread Code L Insert Length Insert Length Code Boss A Head Thickness C Head Diameter
B
Hole Dia.
+.008
-.000
L
Hole Depth
W
Wall Thickness Min.
2-56 256 .197 197 .150 .236 .059 .024 .197
4-40 440 .217 217 .173 .256 .071 .024 .236
6-32 632 .236 236 .205 .276 .071 .031 .276
8-32 832 .295 295 .228 .335 .079 .031 .315
10-24 1024 .354 354 .276 .394 .079 .039 .335
10-32 1032 .354 354 .276 .394 .079 .039 .335
1/4-20 2520 .394 394 .335 .433 .098 .039 .394
1/4-28 2528 .394 394 .335 .433 .098 .039 .394
5/16-18 3118 .472 472 .429 .512 .118 .039 .472
5/16-24 3124 .472 472 .429 .512 .118 .039 .472

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

Metric

Insert Thread Insert Thread Code L Insert Length Insert Length Code Boss A Head Thickness C Head Diameter
B
Hole Dia.
+0.10
-0.00
L
Hole Depth
W
Wall Thickness Min.
M2 x 0.4 M2 5.00 5.00 3.80 6.00 1.50 0.60 5.00
M3 x 0.5 M3 5.50 5.50 4.40 6.50 1.80 0.60 6.00
M3.5 x 0.6 M3.5 6.00 6.00 5.20 7.00 1.80 0.80 7.00
M4 x 0.7 M4 7.50 7.50 5.80 8.50 2.00 0.80 8.00
M5 x 0.8 M5 9.00 9.00 7.00 10.00 2.00 1.00 8.50
M6 x 1.0 M6 10.00 10.00 8.50 11.00 2.50 1.00 10.00
M8 x 1.25 M8 12.00 12.00 10.90 13.00 3.00 1.00 12.00

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


Boss Design Recommendation

The HPZ Hi-Productivity Zert is designed to be installed into a hole with a 8°inclusive taper for its entire length. 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 top of the hole. 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

The inserts may be installed by pre-heating or ultrasonic vibration methods. When using heat, the insert should be hot enough to soften the plastic without melting it to avoid flash around the top. Ultrasonic vibration should be applied using low amplitude and the minimum amount of power necessary to satisfactorily soften the plastic. In both methods, avoid excessive pressure that would force an insert into a hole without allowing the plastic to properly soften and flow around the insert features.