
SONIC-LOK
SL / SHK / SLTS / SLHS FOR THERMOPLASTICS
Download the technical specifications
Here you can get a PDF with the product’s full technical specifications.
DownloadSONIC-LOK is designed for quick installation in thermoplastics by heat staking or ultrasonic welding. It features two bands of opposing knurl patterns to provide a combination of both high torque and pull-out resistance. Available in captive and flanged versions.
STANDARD MATERIAL
Brass (B) – Other materials available upon request.
Molded holes are recommended whenever possible. The conical shape of a molded hole should not exceed 1°, and the recommended hole diameter is as measured at the level of the hole reached by the end of the insert. The upper part of the hole must not be rounded or chamfered, and be careful to avoid flaring.
The fastener may be installed by preheating the insert or by ultrasonic welding, which heats by way of vibration. When preheating the insert, be sure that the fastener softens the plastic without melting it. This will prevent unsightly defects around the upper edges of the insert. Ultrasonic welding is most effective when using low-amplitude vibrations and the lowest power that results in a sufficient softening of the plastic. In either case, avoid applying too much pressure, as this can result in forcing the insert into the hole without allowing the plastic to soften and flow properly into the knurling pattern on the insert.
It is possible to use thinner walls if necessary, but we highly recommend contacting PSM CELADA Fasteners for preliminary tests.
Here you can get a PDF with the product’s full technical specifications.
Download