




Tube Insert 1/2"-20, 5/8"-18", 7/8"-14, 3/4"-16, 1 1/14"-12
- Tube Insert for various tube applications
- Material: 4130 Chromoly Steel, durable and strong
- Thread Sizes: 1/2″-20, 5/8″-18, 7/8″-14, 3/4″-16, 1 1/4″-12
- Tube Sizes: Available from 3/8″ to 2″ OD
- Customization: Available in Left Hand and Right Hand threads, special sizes upon request
- Free sample and quote, factory-direct pricing
Request a quote
Tell us what you need for this product. Our team will review your requirements and reply by email.
PRODUCT DETAILS
Product Description
【Product Overview】
Our Tube Insert is a heavy-duty solution designed for weld-on applications, particularly useful in automotive, off-road, and industrial projects. Made from 4130 chromoly steel, it offers superior strength and durability. These inserts are ideal for tube assemblies that require reliable threading for welding, ensuring a strong, secure fit.
[Note]
We provide a variety of tube adapter types and configurations.
When reaching out, please indicate the model or specification you’re interested in.
For customized sizes or designs, kindly include your drawings or detailed requirements so we can offer an accurate and timely quotation.


【Key Features】
- Material: 4130 chromoly steel provides excellent tensile strength and wear resistance.
- Thread Options: Available in Left Hand and Right Hand threads, marked with grooves for easy identification.
- Customization: Custom sizes and threads available to meet specific project needs.
- Surface Treatment: Raw finish for easy welding, perfect for custom applications.
【Applications】
Ideal for automotive, off-road, industrial, and custom fabrication projects, these tube inserts provide a reliable solution for tube mounting and welding applications.
【Ordering Information】
Factory-direct pricing with free samples and quotes. Customization services available to fit unique project specifications.
HOW WE WORK
Service Process
- 01
Select Product
Choose the product and confirm the specifications you need.
- 02
Confirm MOQ
Our team confirms the minimum order quantity and production details.
- 03
Send Inquiry
Share your quantity, application, and delivery requirements.
- 04
Send Drawing or Sample
Provide a drawing, sample, or measurements for review.
- 05
Start Customization
We confirm the requirements and begin the customization process.
PRODUCT FAQ
Frequently Asked Questions
What thread sizes are available?
1/2"-20, 5/8"-18, 7/8"-14, 3/4"-16, and 1 1/4"-12.
What material is this made from?
4130 chromoly steel for excellent tensile strength and wear resistance.
What tube sizes does this fit?
Available from 3/8" to 2" OD.
How is this installed?
It's a weld-on insert, with a raw finish that's easy to weld.
Are left-hand and right-hand threads available?
Yes, both are available, with left-hand threads marked with grooves for easy identification.
Can I get a custom size or thread?
Yes, send us your drawings or detailed requirements for a custom quotation.




