Threaded Tube and Rod Adjustment
Bung adjuster nuts provide an internal or external threaded interface for setting the length of tubular linkages and fabricated rods. Match thread direction and engagement to the mating component.
1 - 12 RH / 1 1/4-12 RHRELATED PRODUCT
BAN-20-16 Bung Adjuster Nut
Part No.: BAN-20-16
· Thread-adjustment and fabrication hardware series
✓ ISO 9001 Certified
✓ SGS Verified
✓ 26+ Years Factory
✓ OEM / ODM Ready
Internal Thread 1 - 12 RH
External Thread 1 1/4-12 RH
HEX E 1.500 in.
Total Length A 2.130 in.
Hex Length B 0.547 in.
Chromoly steel threaded adjuster for bung assemblies and suspension links
⚡ 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
BUNG ADJUSTER NUT Product Overview
BAN-20-16 is a right-hand bung adjuster nut with 1-12 RH internal thread and 1 1/4-12 RH external thread. Hex size = 1.5″ across flats, total length = 2.13″, hex length = 0.547″.
Made from 4130 chromoly steel with silver zinc plating. The bung adjuster nut fits into a weld-in tube bung and accepts a rod end or linkage component on the internal thread, while the external thread connects to a tube adapter or threaded housing. Allows fine length adjustment in suspension links, steering tie rods, and push-pull control rods.
Left-hand thread versions available (BANL prefix). Paired with tube adapters (WTF series) and rod ends for complete adjustable linkage assemblies. Special sizes and plating options available in volume.
Size Chart
BUNG ADJUSTER NUT Series — Full Size Range
All available sizes in the BUNG ADJUSTER NUT series. Can’t find your size? Contact us for custom dimensions.
| Part Number | Internal Thread C | External Thread D | HEX E | TOTAL LENGTH A | HEX LENGTH B |
|---|---|---|---|---|---|
| BAN-8-6 | 3/8-24 RH | 1/2-20 RH | 0.563 | 1.250 | 0.219 |
| BANL-8-6 | 3/8-24 LH | 1/2-20 LH | 0.563 | 1.250 | 0.219 |
| BAN-10-8 | 1/2-20 RH | 5/8-18 RH | 0.750 | 1.500 | 0.313 |
| BANL-10-8 | 1/2-20 LH | 5/8-18 LH | 0.750 | 1.500 | 0.313 |
| BAN-12-10 | 5/8-18 RH | 3/4-16 RH | 0.938 | 1.630 | 0.375 |
| BANL-12-10 | 5/8-18 LH | 3/4-16 LH | 0.938 | 1.630 | 0.375 |
| BAN-12-10-1 | 5/8-18 RH | 3/4-16 LH | 0.938 | 1.630 | 0.375 |
| BAN-16-12 | 3/4-16 RH | 1-12 RH | 1.125 | 1.750 | 0.422 |
| BANL-16-12 | 3/4-16 LH | 1-12 LH | 1.125 | 1.750 | 0.422 |
| BAN-16-12-1 | 3/4-16 LH | 1-12 RH | 1.125 | 1.750 | 0.422 |
| BANL-16-12-1B | 3/4-16 LH | 1-12 RH | 1.125 | 2.750 | 0.422 |
| BAN-20-16 | 1 - 12 RH | 1 1/4-12 RH | 1.500 | 2.130 | 0.547 |
| BANL-20-16 | 1 - 12 LH | 1 1/4-12 LH | 1.500 | 2.130 | 0.547 |
| BAN-24-20 | 1 1/4-12 RH | 1 1/2-12 RH | 1.875 | 2.130 | 0.719 |
| BANL-24-20 | 1 1/4-12 LH | 1 1/2-12 LH | 1.875 | 2.130 | 0.719 |
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 BUNG ADJUSTER NUT Are Used
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FAQ
BUNG ADJUSTER NUT Frequently Asked Questions
What is the BAN-20-16 bung adjuster nut used for?
The BAN-20-16 fits into a weld-in tube bung and accepts a rod end or linkage component on its internal thread, while the external thread connects to a tube adapter or threaded housing. It allows fine length adjustment in suspension links, steering tie rods, and push-pull control rods.
What are the internal and external thread specs of the BAN-20-16?
Internal thread is 1-12 RH and external thread is 1 1/4-12 RH — confirm both against the tube bung and the rod end or adapter you're threading into before ordering.
What's the difference between the BAN-20-16 and the BANL-20-16?
BAN-20-16 and BANL-20-16 are a matched right-hand/left-hand pair on the same thread sizes — BAN-20-16 is threaded 1-12 RH/1 1/4-12 RH, while its counterpart uses the opposite hand on both ends. Use the matched pair on a turnbuckle-style double adjuster, or order the single hand that matches your existing tube bung and rod end threads.
What are the hex size and length of the BAN-20-16?
Hex size is 1.5" across flats, hex length is 0.547", and total length is 2.13" — check the hex size against your wrench/socket and the total length against your available adjustment space.
What material is the BAN-20-16 made from?
The BAN-20-16 is made from 4130 chromoly steel with a silver zinc-plated finish.
What does the BAN-20-16 pair with, and can SYZ supply special sizes?
It's paired with tube adapters (WTF series) and rod ends to build a complete adjustable linkage assembly. Special sizes and plating options are available in volume — provide your target thread sizes and quantity when requesting a quote.