Tech-Fix
Unheaded (UHDTECFIX)
| Metric and Unified Dimensions | Brass / Self Color | |||||||||
| Thread Size | Metric | M2* | M2.5* | M3 | M3.5 | M4 | M5 | M6 | M8* | M10* |
| Unified* | 2.56 UNC* | - | 4.40 UNC* | 6.32 UNC* | 8.32 UNC* | 10.24 UNC* | 1/4-20 UNC* | 5/16-18 UNC* | 3/8-16 UNC* | |
| 10.32 UNF* | 1/4-28 UNF* | 5/16-24 UNF* | 3/8-24 UNF* | |||||||
| L mm | 4.0 | 5.7 | 5.7 | 7.1 | 8.1 | 9.5 | 12.7 | 12.7 | 12.7 | |
| W mm | 3.5 | 4.4 | 4.4 | 5.2 | 6.1 | 6.8 | 8.5 | 10.0 | 12.3 | |
| N mm | 3.1 | 3.9 | 3.9 | 4.7 | 5.5 | 6.3 | 7.9 | 9.5 | 11.8 | |
| Recommended Hole Size mm (-0.0/+0.1) | 3.2 | 4.0 | 4.0 | 4.8 | 5.6 | 6.4 | 8.0 | 9.6 | 11.9 | |
| Minimum Wall Thickness mm | 1.3 | 1.6 | 1.6 | 1.8 | 2.1 | 2.6 | 3.3 | 4.5 | 6.0 | |
* Non preferred - Please contact our sales team to enquire for availability.
Unified variations can be manufactured with either fine or coarse threads. Please state when enquiring.
All data is correct to the best of our knowledge, however Lancaster Fastener cannot be held responsible for any errors or omissions.
Tech-Fix - Information for designers
The Tech-Fix has been designed for post mould installation into thermoplastics using heat or ultrasonics with the opposing knurls and vanes providing high levels of pull out and torque resistance. The symmetrical design means the insert can be installed either way round which allows for automated installation.
Advantages
Rapid installation
Symmetrical design for automated installation
Allows for thin walls in the boss
High pull out and torque resistance
Installation Data
The Tech-Fix is installed using either heat or ultrasonics
Heat Installation
Where heat is used you must ensure that the insert softens, but does not melt the plastic, which helps avoid flash forming around the top of the insert.
Ultrasonic Installation
Ultrasonic installation works best with low amplitude vibrations and enough power to soften the surrounding plastic.
Care should be taken avoid excessive downward pressure being applied during installation which can result in the insert being forced into the hole rather than allowing the plastic to soften around it.
