Host material
Share the resin or composite specification and reinforcement. Suitability must be established for the proposed insert.
THREADED INSERTS
Self-Tapping Inserts
Create a metal internal thread with an insert that is screwed into a prepared receiving hole. Review host compatibility, installation torque and chip control.
HOW IT WORKS
Understand the installation and function.
A self-tapping insert uses its external design to establish retention in the receiving material during screw-in installation. Cutting and forming designs have different requirements; the exact insert design determines the process.
Where to start
Applications where a screw-in process is suitable for the plastic and the surrounding section. Material grade, hole preparation and the required load govern whether a proposed design is appropriate.
APPLICATION REVIEW
What we review with you.
Prepared hole
Specify hole diameter, depth, tolerance and the available wall section.
Installation control
Define the driver, alignment, installation depth and torque monitoring approach.
Cleanliness
For cutting designs, review chip space, thread protection and contamination-sensitive areas.
CUSTOM OPTIONS
Define the features your assembly needs.
External geometry, cutting features where applicable, internal thread, length, head configuration, material and finish can be reviewed from the drawing.
| Requirement | Useful RFQ information |
|---|---|
| Thread / bore | Standard, pitch or bore fit; usable engagement and mating hardware |
| Envelope | Body dimensions, shoulder, flange, location and surrounding clearance |
| Material / finish | Specified grade, surface treatment and service environment |
| Volume / timing | Sample quantity, order quantity, repeat demand and required delivery |
| Acceptance | Drawing revision, critical dimensions, sample checks and documents |
COMMON QUESTIONS
Before you send your RFQ.
Is a self-tapping insert the same as a self-tapping screw?
No. The insert remains in the host and provides an internal thread for a separate mating fastener.
Can a generic hole table determine my final hole?
Use the requirements of the actual insert and host material. Confirm the selected combination with representative installation and performance checks.
YOUR NEXT STEP
Discuss your self-tapping inserts.
A drawing, a sample photo or a clear description is a good place to start.