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Inserts for Plastics
About Inserts
About SPIROL Inserts
Design Guidelines
Insert Design
Plastic Overview
Series 10 and 13
Series 14, 24 and 25
Series 15, 16 and 18
Series 19 and 20
Series 27, 28, 29 and 30
Series 41 and 45
Series 50 and 51
Special Inserts
Testing and Performance
Use of Compression Limiters
Automation
Insert Installation
SPIROL offers heat/ultrasonic, molded-in, press-in, expansion, and self-tapping inserts. Our standard inserts have been designed for a broad set of plastic applications.
Build your specifications at the bottom of this page!
Heat/Ultrasonic Inserts
Series 14 Tapered Hole — Tapered design for tapered holes for ease of location and reduced installation time.
Series 24 Continental and Series 25 Flanged — Designed for tapered hole sizes commonly specified in Continental Europe.
Series 19 Straight Hole and Series 20 Flanged — Designed for straight holes to yield maximum performance with low radial stress.
Series 27 Standard and Series 28 Flanged — Symmetrical for ease of orientation and enhanced performance designed to minimize radial stresses for thin wall applications.
Series 29 Standard and Series 30 Flanged — Symmetrical for ease of orientation and enhanced performance designed to maximize torque and pull out values.
Molded-In Inserts
Series 41 Through-Hole and Series 45 Blind Hole — Molded-In Inserts are designed to be placed in the mold cavity prior to plastic injection. They offer exceptional torque and pull-out resistance. Series 45 inserts are blind ended and are designed for non-through hole applications.
Press-In Inserts
Series 50 Symmetrical and Series 51 Headed — Press-In Inserts are designed to be pressed into a plastic hole without melting the plastic prior to installation. They offer rapid installation with no specialized equipment and achieve good overall joint performance.
Expansion Inserts
Series 15 Standard, Series 16 Flanged and Series 18 Reverse Expansion — Expansion Inserts provide permanent reusable threads at the lowest in-place cost for light duty applications. Reverse Expansion Inserts offer exceptional performance for applications where the bolt is entering from the non-headed end of the insert.
Self Tapping Inserts
Series 10 Thread Forming and Series 13 Thread Cutting — Self Tapping Inserts are versatile. They can be used in more plastics, including thermoset plastics, while providing the highest, most consistent pullout strength.
Rapid Search for Inserts for Plastics
To find a standard part, please select the following specifications in the order they appear.
Part Code:
All SPIROL standard Inserts are made from the highest quality brass rod.
Material and finish are defined as E for brass and K for plain finish.
If this part does not meet your requirements, use our Optimal Application Engineering process in the left column to quickly evaluate and optimize your fastening or assembly application.