Weld-In Tube Ends for Linkages
Threaded tube adapters create a repeatable interface between tubing and rod ends, clevises, or adjusters. Select the tube OD and wall thickness together with thread size and weld access.
7/8" OD x 0.058RELATED PRODUCT
WTF-0604R WTF-0604L Tube Adapter
Part No.: WTF-0604R
· Thread-adjustment and fabrication hardware series
✓ ISO 9001 Certified
✓ SGS Verified
✓ 26+ Years Factory
✓ OEM / ODM Ready
Tube Size 7/8" OD x 0.058
Thread Female 3/8-24
4130 chromoly steel standard material
Left-hand versions marked with grooves
HEX available for wrench engagement
Special sizes available in volume
⚡ Typically responds within 24 hours
MOQ:50 pcs / model
Lead Time:7–15 days
Sample:Free (excl. freight)
Payment:T/T · PayPal · L/C
Overview
TUBE ADAPTERS Product Overview
WTF-0604R / WTF-0604L is a 4130 chromoly tube adapter that fits 7/8″ OD × 0.058″ wall tubing and has a 3/8-24 female thread. Right-hand (WTF-0604R) and left-hand (WTF-0604L) versions are supplied as a matched pair for adjustable linkage assembly.
The WTF tube adapter is welded or press-fitted into the end of a 4130 chromoly tube, then tapped with a female thread that accepts a rod end, jack screw, or bung adjuster nut. Pairing one RH and one LH tube adapter on opposite ends of a tube creates a turnbuckle-style adjustable link — rotating the tube changes overall assembly length. Used in suspension links, steering tie rods, throttle rods, and push-pull control assemblies.
Right-hand / left-hand matched pair: WTF-0604R + WTF-0604L. Mild steel option available on request. Hex (wrench flat) version available — contact SYZ. Compatible with CMT chromoly tubing and WPB/COM spherical bearing cups (UBC series).
Size Chart
TUBE ADAPTERS Series — Full Size Range
All available sizes in the TUBE ADAPTERS series. Can’t find your size? Contact us for custom dimensions.
| Right Hand Part No. | Left Hand Part No. | Tube Size (OD x Wall Thickness) | Thread 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 |
Quality Control
Every Unit Inspected Before Shipment
Raw Material Inspection
Material certifications verified. Composition confirmed by spectrometer before machining begins.
Thread Gauge Inspection
100% go/no-go gauge check on all threaded sections. Zero tolerance on dimensional non-conformance.
Load Capacity Test
Static and dynamic load tests run on representative samples from each production batch.
Dimensional Measurement
CMM verification of critical dimensions — ball diameter, bore, thread pitch, and body length.
Surface Inspection
Visual and tactile inspection for burrs, scratches, surface cracks, and plating defects.
Articulation Test
Misalignment angle and torque measured to confirm liner performance meets specification.
Heat Treatment Verify
Hardness tests confirm proper heat treatment on chromoly steel bodies and bearing balls.
Batch Documentation
Full traceability from raw material heat number to finished part. COC and inspection reports available.
Applications
Where TUBE ADAPTERS Are Used
Related Products
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FAQ
TUBE ADAPTERS Frequently Asked Questions
What is the WTF-0604R/WTF-0604L tube adapter used for?
WTF-0604R/WTF-0604L is a 4130 chromoly weld-in tube adapter (mild steel optional) built for fabricated tube assemblies. It fits 7/8" OD × 0.058" wall tubing and is tapped with a 3/8-24 female thread, so it's welded or press-fitted into the tube end and then threaded to accept a rod end, jack screw, or bung adjuster nut. Typical uses include suspension links, steering tie rods, throttle rods, and push-pull control assemblies.
What size tubing does the WTF-0604R/WTF-0604L fit?
The WTF-0604R/WTF-0604L pair is sized for 7/8" OD × 0.058" wall tubing — confirm your tube's actual OD and wall thickness match this before welding or press-fitting the adapter in, since a mismatched fit will affect the weld joint or press interference.
What thread does the WTF-0604R/WTF-0604L tube adapter have?
Both the WTF-0604R and WTF-0604L are tapped with a 3/8-24 female thread sized to accept a matching rod end, jack screw, or bung adjuster nut — make sure whatever you thread into it is also 3/8-24.
What is the difference between WTF-0604R and WTF-0604L?
WTF-0604R is the right-hand thread version and WTF-0604L is the left-hand thread version of the same 7/8" OD × 0.058" wall tube adapter. They're supplied as a matched pair, one welded into each end of the tube — the left-hand part is identified by grooves marked on it — so rotating the tube (or an in-line adjuster) changes overall assembly length without unthreading either end, like a turnbuckle.
What material is the WTF-0604R/WTF-0604L tube adapter made of, and is a hex version available?
Standard material is 4130 chromoly steel; a mild steel version is available on request. A hex (wrench flat) version is also available for cases where you need to hold the adapter with a wrench while threading in the mating rod end or jack screw — confirm material and hex option when ordering.
Can SYZ supply custom sizes of the WTF-0604R/WTF-0604L or match it to specific tubing and bearing cups?
Yes. Special sizes are available in volume, and the WTF-0604R/WTF-0604L pair is compatible with CMT chromoly tubing and WPB/COM spherical bearing cups (UBC series) for building out the rest of the linkage — provide your target tube OD/wall and thread spec when requesting a quote for non-standard sizes.