Plas-Fix 60 Screws Installation Guide

This article provides installation assitance for the Metric Plas-Fix 60 threadforming screws.

Summary

 
Plas Fix 60

The Plas-Fix 60 is a trilobular bodied, high performance Metric thread forming screw for plastics for use in a variety of plastics

Typical Soft Plastics include: Nylon, Acetal, ABS
Typical Hard Plastics include:Glass Filled Varieties, DMC and in some cases, Phenolics

 

Hole Sizes and Thread data

 

Plas Fix 60 Installation Diagram

 

Metric Dimensions

 
Screw Size Thread Dimensions (mm) Hole Sizes Based on Percentage of Thread Engagement in Soft Plastics (mm) Suggested Hole Size Hard Plastics (mm)
C D
Min. Max. Min. Max. 100% 90% 80% 70% 60% 50% 40%
2-28 2.18 2.34 2.11 2.26 1.89 1.92 1.96 1.99 2.03 2.07 2.1 2.03
4-20 3.07 3.23 2.97 3.12 2.46 2.54 2.59 2.67 2.72 2.79 2.87 2.69
6-19 3.58 3.73 3.48 3.63 3 3.05 3.12 3.18 3.25 3.3 3.35 3.25
8-16 4.55 4.7 4.39 4.55 3.66 3.76 3.84 3.94 4.01 4.11 4.19 3.99
10-14 5.23 5.38 5.13 5.28 4.32 4.42 4.5 4.6 4.7 4.8 4.88 4.7

Ideally, the minimum length of engagement should be two times the C dimension.

 

Plas Fix 60 Installation Diagram

 

Inch Dimensions

 
Nominal Screw Size Thread Dimensions (inches) Hole Sizes Based on Percentage of Thread Engagement in Soft Plastics (inches) Suggested Hole Size Hard Plastics (inches)
C D
Min. Max. Min. Max. 100% 90% 80% 70% 60% 50% 40%
2-28 0.086 0.092 0.083 0.089 0.074 0.076 0.077 0.078 0.08 0.081 0.083 0.08
4-20 0.121 0.127 0.117 0.123 0.097 0.1 0.102 0.105 0.107 0.11 0.113 0.106
6-19 0.141 0.147 0.137 0.143 0.118 0.12 0.123 0.125 0.128 0.13 0.132 0.128
8-16 0.179 0.185 0.173 0.179 0.144 0.148 0.151 0.155 0.158 0.162 0.165 0.157
10-14 0.206 0.212 0.202 0.208 0.17 0.174 0.177 0.181 0.185 0.189 0.192 0.185

Ideally, the minimum length of engagement should be two times the C dimension.

 

 



Note: Due to the fact that fastening applications differ greatly, the above information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.