Off-Road Sports
Built for suspension, steering, and articulation under heavy mechanical loads and off-road abuse.
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【Tube Insert Bung for Rod End Heim Joint】 Our Tube Insert Bung for Rod End Heim Joint is designed for welding into steel tubing, providing a secure threaded interface for Heim joints and rod end applications. Available in both left and right-hand thread options, with left-hand versions easily identified by machined grooves.
【Heavy-Duty Chromoly Steel】 Each insert is precision-machined from 4130 chromoly steel, known for its high strength and durability in demanding environments. These weld-in threaded bungs are widely used in off-road suspensions, linkages, and custom vehicle builds.
【Thread and Tube Size Options】 We offer a broad range of outer diameters (from 3/8” to 2”) and thread sizes (including 10-32 to 1 1/4-12), supporting both fine and coarse threads. Custom thread hand (left/right), wall thickness, and hex or round options are all supported.
Note:
We offer a wide range of tube adapter styles.
When contacting us, please specify the model number you are interested in.
For custom styles or dimensions, kindly attach your drawings or specifications so that we can provide a prompt and accurate quotation.
Weld In Bung Threaded Tube Inserts More Sizes
| Threaded Tube Inserts Part Number | TUBE SIZE X | Thread | |
| Right Hand | Left Hand | WALL THICKNESS | Female |
| WTF-0301R | WTF-0301L | 3/8″ OD x 0.058 | 10-32 |
| WTF-0401R | WTF-0401L | 1/2″ OD x 0.058 | 1/4-28 |
| WTF-0501R | WTF-0501L | 1/2″ OD x 0.058 | 5/16-24 |
| WTF-0502R | WTF-0502L | 5/8″ OD x 0.058 | 5/16-24 |
| WTF-0601R | WTF-0601L | 5/8″ OD x 0.058 | 3/8-24 |
| WTF-0701R | WTF-0701L | 5/8″ OD x 0.058 | 7/16-20 |
| WTF-0402R | WTF-0402L | 3/4″ OD x 0.058 | 1/4-28 |
| WTF-0503R | WTF-0503L | 3/4″ OD x 0.058 | 5/16-24 |
| WTF-0602R | WTF-0602L | 3/4″ OD x 0.058 | 3/8-24 |
| WTF-0702R | WTF-0702L | 3/4″ OD x 0.058 | 7/16-20 |
| WTF-0504R | WTF-0504L | 3/4″ OD x 0.065 | 5/16-24 |
| WTF-0603R | WTF-0603L | 3/4″ OD x 0.065 | 3/8-24 |
| WTF-0703R | WTF-0703L | 3/4″ OD x 0.065 | 7/16-20 |
| WTF-0604R | WTF-0604L | 7/8″ OD x 0.058 | 3/8-24 |
| WTF-0704R | WTF-0704L | 7/8″ OD x 0.058 | 7/16-20 |
| WTF-0801R | WTF-0801L | 7/8″ OD x 0.058 | 1/2-20 |
| WTF-0605R | WTF-0605L | 7/8″ OD x 0.065 | 3/8-24 |
| WTF-0705R | WTF-0705L | 7/8″ OD x 0.065 | 7/16-20 |
| WTF-0802R | WTF-0802L | 7/8″ OD x 0.065 | 1/2-20 |
| WTF-0606R | WTF-0606L | 7/8″ OD x 0.083 | 3/8-24 |
| WTF-0706R | WTF-0706L | 7/8″ OD x 0.083 | 7/16-20 |
| WTF-0803R | WTF-0803L | 7/8″ OD x 0.083 | 1/2-20 |
| WTF-0607R | WTF-0607L | 1″ OD x 0.058 | 3/8-24 |
| WTF-0707R | WTF-0707L | 1″ OD x 0.058 | 7/16-20 |
| WTF-0804R | WTF-0804L | 1″ OD x 0.058 | 1/2-20 |
| WTF-1001R | WTF-1001L | 1″ OD x 0.058 | 5/8-18 |
| WTF-0608R | WTF-0608L | 1″ OD x 0.065 | 3/8-24 |
| WTF-0708R | WTF-0708L | 1″ OD x 0.065 | 7/16-20 |
| WTF-0805R | WTF-0805L | 1″ OD x 0.065 | 1/2-20 |
| WTF-1002R | WTF-1002L | 1″ OD x 0.065 | 5/8-18 |
| WTF-0609R | WTF-0609L | 1″ OD x 0.083 | 3/8-24 |
| WTF-0709R | WTF-0709L | 1″ OD x 0.083 | 7/16-20 |
| WTF-0806R | WTF-0806L | 1″ OD x 0.083 | 1/2-20 |
| WTF-1003R | WTF-1003L | 1″ OD x 0.083 | 5/8-18 |
| WTF-0610R | WTF-0610L | 1″ OD x 0.095 | 3/8-24 |
| WTF-0710R | WTF-0710L | 1″ OD x 0.095 | 7/16-20 |
| WTF-0807R | WTF-0807L | 1″ OD x 0.095 | 1/2-20 |
| WTF-1004R | WTF-1004L | 1″ OD x 0.095 | 5/8-18 |
| WTF-0808R | WTF-0808L | 1 1/8″ OD x 0.058 | 1/2-20 |
| WTF-1005R | WTF-1005L | 1 1/8″ OD x 0.058 | 5/8-18 |
| WTF-0809R | WTF-0809L | 1 1/8″ OD x 0.065 | 1/2-20 |
| WTF-1006R | WTF-1006L | 1 1/8″ OD x 0.065 | 5/8-18 |
| WTF-0810R | WTF-0810L | 1 1/8″ OD x 0.083 | 1/2-20 |
| WTF-1007R | WTF-1007L | 1 1/8″ OD x 0.083 | 5/8-18 |
| WTF-1201R | WTF-1201L | 1 1/8″ OD x 0.083 | 3/4-16 |
| WTF-0811R | WTF-0811L | 1 1/8″ OD x 0.095 | 1/2-20 |
| WTF-1008R | WTF-1008L | 1 1/8″ OD x 0.095 | 5/8-18 |
| WTF-1202R | WTF-1202L | 1 1/8″ OD x 0.095 | 3/4-16 |
| WTF-1009R | WTF-1009L | 1 1/4″ OD x 0.095 | 5/8-18 |
| WTF-1203R | WTF-1203L | 1 1/4″ OD x 0.095 | 3/4-16 |
| WTF-1010R | WTF-1010L | 1 1/4″ OD x 0.120 | 5/8-18 |
| WTF-1204R | WTF-1204L | 1 1/4″ OD x 0.120 | 3/4-16 |
| WTF-1011R | WTF-1011L | 1 3/8″ OD x 0.095 | 5/8-18 |
| WTF-1205R | WTF-1205L | 1 3/8″ OD x 0.095 | 3/4-16 |
| WTF-1012R | WTF-1012L | 1 3/8″ OD x 0.120 | 5/8-18 |
| WTF-1206R | WTF-1206L | 1 3/8″ OD x 0.120 | 3/4-16 |
| WTF-1013R | WTF-1013L | 1 1/2″ OD x 0.095 | 5/8-18 |
| WTF-1207R | WTF-1207L | 1 1/2″ OD x 0.095 | 3/4-16 |
| WTF-1208R | WTF-1208L | 1 1/2″ OD x 0.120 | 3/4-16 |
| WTF-1401R | WTF-1401L | 1 1/2″ OD x 0.120 | 7/8-14 |
| WTF-1209R | WTF-1209L | 1 1/2″ OD x 0.250 | 3/4-16 |
| WTF-1402R | WTF-1402L | 1 1/2″ OD x 0.250 | 7/8-14 |
| WTF-1210R | WTF-1210L | 1 3/4″ OD x 0.120 | 3/4-16 |
| WTF-1403R | WTF-1403L | 1 3/4″ OD x 0.120 | 7/8-14 |
| WTF-1601R | WTF-1601L | 1 3/4″ OD x 0.120 | 1-14 |
| WTF-2001R | WTF-2001L | 1 3/4″ OD x 0.120 | 1 1/4-12 |
| WTF-1211R | WTF-1211L | 1 3/4″ OD x 0.250 | 3/4-16 |
| WTF-1404R | WTF-1404L | 1 3/4″ OD x 0.250 | 7/8-14 |
| WTF-1602R | WTF-1602L | 1 3/4″ OD x 0.250 | 1-14 |
| WTF-2002R | WTF-2002L | 2″ OD x 0.250 | 1 1/4-12 |
| WTF-1603R | WTF-1603L | 2″ OD x 0.250 | 1-14 |
| WTF-1604R | WTF-1604L | 2″ OD x 0.250 | 1-12 |
| WTF-2003R | WTF-2003L | 2″ OD x 0.120 | 1 1/4-12 |












All available sizes in the Rod End series. Can’t find your size? Contact us for custom dimensions.
Size chart will appear here once configured for the Rod End series.
Material certifications verified. Composition confirmed by spectrometer before machining begins.
100% go/no-go gauge check on all threaded sections. Zero tolerance on dimensional non-conformance.
Static and dynamic load tests run on representative samples from each production batch.
CMM verification of critical dimensions — ball diameter, bore, thread pitch, and body length.
Visual and tactile inspection for burrs, scratches, surface cracks, and plating defects.
Misalignment angle and torque measured to confirm liner performance meets specification.
Hardness tests confirm proper heat treatment on chromoly steel bodies and bearing balls.
Full traceability from raw material heat number to finished part. COC and inspection reports available.
Share your part number, required quantity, and any special material or packaging requirements. We respond within 24 hours.
XM parts are male rod ends with an external shank thread, while XF parts are female rod ends with an internally threaded body. Both belong to the same XM-XF series and share the same core performance direction.
The XM-XF series is commonly used in off-road racing, agricultural equipment, industrial linkages, marine hardware, and other motion-control assemblies that need compact articulation and dependable load capacity.
Yes. The XM-XF series can be supplied in right-hand or left-hand thread configurations depending on the part number and linkage design requirement.
Yes. For OEM or repeat-order programs, SYZ can discuss custom body materials, plating, special packaging, and other production requirements based on your application.
Start from the required ball bore, thread size, and body style, then match them against the XM-XF size chart. If your assembly has special dimensional constraints, send the target dimensions to us for selection support.
Not always. Some variants may use a race liner while others may differ by structure, so the exact build should be confirmed from the product spec or inquiry response for the target part number.
Yes. Sample support is available for qualification. Standard policy is free samples with freight handled separately unless otherwise agreed.
Typical lead time is around 7 to 15 days depending on order quantity, stock condition, finishing requirements, and whether any custom packing or OEM marking is needed.