Length and Tension Adjustment
Hex-bar turnbuckles provide bidirectional threaded adjustment for setting length, tension, or alignment in linkages and fabricated assemblies. Select thread direction and engagement for the required adjustment range.
related-product-inchRELATED PRODUCT
Стяжная муфта из шестигранного прутка HBT12-21.00
Part No.: HBT12-21.00
· Thread-adjustment and fabrication hardware series
✓ ISO 9001 Certified
✓ SGS Verified
✓ 26+ Years Factory
✓ OEM / ODM Ready
Thread 3/4-16
Thread Length 2.5 in.
Carbon steel silver zinc plated standard adjuster material
Female-female right-hand and left-hand threaded adjuster body
Hex bar design for direct wrench adjustment in linkage systems
Special lengths available in volume for OEM programs
Material
Carbon steel, silver zinc plated
Special Sizes
Available in volume
Adjustment
Allows for wheel alignment and prevents damage from toe in or toe out.
⚡ 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
TURNBUCKLE HEX BAR Product Overview
HBT12-21.00 — стяжная муфта из шестигранного прутка с резьбой 3/4-16, шестигранник 1.0″ между гранями и общей длиной корпуса 21.00″. Оба конца имеют внутреннюю резьбу (одна RH, другая LH) для шарнирных головок или шаровых опор.
Стяжная муфта серии HBT из шестигранного прутка — регулируемое соединение «внутренняя резьба — внутренняя резьба»: одна шарнирная головка вворачивается в правый конец, другая — в левый. Вращение шестигранного корпуса ключом удлиняет или укорачивает узел с малым шагом. Применяется для регулировки углов установки колёс, настройки геометрии подвески, рулевых тяг и везде, где требуется точная регулировка длины инструментом. Углеродистая сталь, серебристое цинкование.
Все размеры HBT12 используют резьбу 3/4-16 и шестигранник 1.0″. Длины от 2″ до 26″ доступны в серии. Метрическая резьба и особые размеры шестигранника — при заказе партии. Для регулировки с одним внутренним концом см. серию регулировочных муфт LBA.
Size Chart
TURNBUCKLE HEX BAR Series — Full Size Range
All available sizes in the TURNBUCKLE HEX BAR series. Can’t find your size? Contact us for custom dimensions.
| Part Number | Thread | Thread Length | Part Length | Hex Size |
|---|---|---|---|---|
| HBT3-2.00 | 10-32 | 0.875 | 2 | 0.375 |
| HBT3-2.75 | 10-32 | 1 | 2.75 | 0.375 |
| HBT3-3.50 | 10-32 | 1 | 3.5 | 0.375 |
| HBT3-4.25 | 10-32 | 1 | 4.25 | 0.375 |
| HBT3-5.00 | 10-32 | 1 | 5 | 0.375 |
| HBT3-5.75 | 10-32 | 1 | 5.75 | 0.375 |
| HBT3-6.50 | 10-32 | 1 | 6.5 | 0.375 |
| HBT3-7.25 | 10-32 | 1 | 7.25 | 0.375 |
| HBT3-8.00 | 10-32 | 1 | 8 | 0.375 |
| HBT3-8.75 | 10-32 | 1 | 8.75 | 0.375 |
| HBT3-9.50 | 10-32 | 1 | 9.5 | 0.375 |
| HBT3-10.25 | 10-32 | 1 | 10.25 | 0.375 |
| HBT3-11.00 | 10-32 | 1 | 11 | 0.375 |
| HBT3-11.75 | 10-32 | 1 | 11.75 | 0.375 |
| HBT3-12.50 | 10-32 | 1 | 12.5 | 0.375 |
| HBT3-13.25 | 10-32 | 1 | 13.25 | 0.375 |
| HBT3-14.00 | 10-32 | 1 | 14 | 0.375 |
| HBT3-14.75 | 10-32 | 1 | 14.75 | 0.375 |
| HBT3-15.50 | 10-32 | 1 | 15.5 | 0.375 |
| HBT3-16.25 | 10-32 | 1 | 16.25 | 0.375 |
| HBT3-17.00 | 10-32 | 1 | 17 | 0.375 |
| HBT3-17.75 | 10-32 | 1 | 17.75 | 0.375 |
| HBT4-3.00 | 1/4-28 | 1.25 | 3 | 0.438 |
| HBT4-4.00 | 1/4-28 | 1.25 | 4 | 0.438 |
| HBT4-5.00 | 1/4-28 | 1.25 | 5 | 0.438 |
| HBT4-6.00 | 1/4-28 | 1.25 | 6 | 0.438 |
| HBT4-7.00 | 1/4-28 | 1.25 | 7 | 0.438 |
| HBT4-8.00 | 1/4-28 | 1.25 | 8 | 0.438 |
| HBT4-9.00 | 1/4-28 | 1.25 | 9 | 0.438 |
| HBT4-10.00 | 1/4-28 | 1.25 | 10 | 0.438 |
| HBT4-11.00 | 1/4-28 | 1.25 | 11 | 0.438 |
| HBT4-12.00 | 1/4-28 | 1.25 | 12 | 0.438 |
| HBT4-13.00 | 1/4-28 | 1.25 | 13 | 0.438 |
| HBT4-14.00 | 1/4-28 | 1.25 | 14 | 0.438 |
| HBT4-15.00 | 1/4-28 | 1.25 | 15 | 0.438 |
| HBT4-16.00 | 1/4-28 | 1.25 | 16 | 0.438 |
| HBT4-17.00 | 1/4-28 | 1.25 | 17 | 0.438 |
| HBT4-18.00 | 1/4-28 | 1.25 | 18 | 0.438 |
| HBT4-19.00 | 1/4-28 | 1.25 | 19 | 0.438 |
| HBT4-20.00 | 1/4-28 | 1.25 | 20 | 0.438 |
| HBT4-21.00 | 1/4-28 | 1.25 | 21 | 0.438 |
| HBT4-22.00 | 1/4-28 | 1.25 | 22 | 0.438 |
| HBT4-23.00 | 1/4-28 | 1.25 | 23 | 0.438 |
| HBT4-24.00 | 1/4-28 | 1.25 | 24 | 0.438 |
| HBT5-3.00 | 5/16-24 | 1.375 | 3 | 0.5 |
| HBT5-4.00 | 5/16-24 | 1.5 | 4 | 0.5 |
| HBT5-5.00 | 5/16-24 | 1.5 | 5 | 0.5 |
| HBT5-6.00 | 5/16-24 | 1.5 | 6 | 0.5 |
| HBT5-7.00 | 5/16-24 | 1.5 | 7 | 0.5 |
| HBT5-8.00 | 5/16-24 | 1.5 | 8 | 0.5 |
| HBT5-9.00 | 5/16-24 | 1.5 | 9 | 0.5 |
| HBT5-10.00 | 5/16-24 | 1.5 | 10 | 0.5 |
| HBT5-11.00 | 5/16-24 | 1.5 | 11 | 0.5 |
| HBT5-12.00 | 5/16-24 | 1.5 | 12 | 0.5 |
| HBT5-13.00 | 5/16-24 | 1.5 | 13 | 0.5 |
| HBT5-14.00 | 5/16-24 | 1.5 | 14 | 0.5 |
| HBT5-15.00 | 5/16-24 | 1.5 | 15 | 0.5 |
| HBT5-16.00 | 5/16-24 | 1.5 | 16 | 0.5 |
| HBT5-17.00 | 5/16-24 | 1.5 | 17 | 0.5 |
| HBT5-18.00 | 5/16-24 | 1.5 | 18 | 0.5 |
| HBT5-19.00 | 5/16-24 | 1.5 | 19 | 0.5 |
| HBT5-20.00 | 5/16-24 | 1.5 | 20 | 0.5 |
| HBT5-21.00 | 5/16-24 | 1.5 | 21 | 0.5 |
| HBT5-22.00 | 5/16-24 | 1.5 | 22 | 0.5 |
| HBT5-23.00 | 5/16-24 | 1.5 | 23 | 0.5 |
| HBT5-24.00 | 5/16-24 | 1.5 | 24 | 0.5 |
| HBT5-8.31 | 5/16-24 | 1.25 | 8.31 | 0.5 |
| HBT5-15.875 | 5/16-24 | 1.25 | 15.875 | 0.5 |
| HBT5-19.50 | 5/16-24 | 1.5 | 19.50 | 0.5 |
| HBT6-3.00 | 3/8-24 | 1.375 | 3 | 0.563 |
| HBT6-4.00 | 3/8-24 | 1.5 | 4 | 0.563 |
| HBT6-5.00 | 3/8-24 | 1.5 | 5 | 0.563 |
| HBT6-6.00 | 3/8-24 | 1.5 | 6 | 0.563 |
| HBT6-7.00 | 3/8-24 | 1.5 | 7 | 0.563 |
| HBT6-8.00 | 3/8-24 | 1.5 | 8 | 0.563 |
| HBT6-9.00 | 3/8-24 | 1.5 | 9 | 0.563 |
| HBT6-10.00 | 3/8-24 | 1.5 | 10 | 0.563 |
| HBT6-11.00 | 3/8-24 | 1.5 | 11 | 0.563 |
| HBT6-12.00 | 3/8-24 | 1.5 | 12 | 0.563 |
| HBT6-13.00 | 3/8-24 | 1.5 | 13 | 0.563 |
| HBT6-14.00 | 3/8-24 | 1.5 | 14 | 0.563 |
| HBT6-15.00 | 3/8-24 | 1.5 | 15 | 0.563 |
| HBT6-16.00 | 3/8-24 | 1.5 | 16 | 0.563 |
| HBT6-17.00 | 3/8-24 | 1.5 | 17 | 0.563 |
| HBT6-18.00 | 3/8-24 | 1.5 | 18 | 0.563 |
| HBT6-19.00 | 3/8-24 | 1.5 | 19 | 0.563 |
| HBT6-20.00 | 3/8-24 | 1.5 | 20 | 0.563 |
| HBT6-21.00 | 3/8-24 | 1.5 | 21 | 0.563 |
| HBT6-22.00 | 3/8-24 | 1.5 | 22 | 0.563 |
| HBT6-23.00 | 3/8-24 | 1.5 | 23 | 0.563 |
| HBT6-24.00 | 3/8-24 | 1.5 | 24 | 0.563 |
| HBT7-3.00 | 7/16-20 | 1.375 | 3 | 0.688 |
| HBT7-4.00 | 7/16-20 | 1.625 | 4 | 0.688 |
| HBT8-2.50 | 1/2-20 | 1.25 | 2.5 | 0.75 |
| HBT8-3.00 | 1/2-20 | 1.375 | 3 | 0.75 |
| HBT8-4.00 | 1/2-20 | 1.75 | 4 | 0.75 |
| HBT8-5.00 | 1/2-20 | 1.75 | 5 | 0.75 |
| HBT8-6.00 | 1/2-20 | 1.75 | 6 | 0.75 |
| HBT8-7.00 | 1/2-20 | 1.75 | 7 | 0.75 |
| HBT8-8.00 | 1/2-20 | 1.75 | 8 | 0.75 |
| HBT8-9.00 | 1/2-20 | 1.75 | 9 | 0.75 |
| HBT8-10.00 | 1/2-20 | 1.75 | 10 | 0.75 |
| HBT8-11.00 | 1/2-20 | 1.75 | 11 | 0.75 |
| HBT8-12.00 | 1/2-20 | 1.75 | 12 | 0.75 |
| HBT8-13.00 | 1/2-20 | 1.75 | 13 | 0.75 |
| HBT8-14.00 | 1/2-20 | 1.75 | 14 | 0.75 |
| HBT8-15.00 | 1/2-20 | 1.75 | 15 | 0.75 |
| HBT8-16.00 | 1/2-20 | 1.75 | 16 | 0.75 |
| HBT8-17.00 | 1/2-20 | 1.75 | 17 | 0.75 |
| HBT8-18.00 | 1/2-20 | 1.75 | 18 | 0.75 |
| HBT8-19.00 | 1/2-20 | 1.75 | 19 | 0.75 |
| HBT8-20.00 | 1/2-20 | 1.75 | 20 | 0.75 |
| HBT8-21.00 | 1/2-20 | 1.75 | 21 | 0.75 |
| HBT8-22.00 | 1/2-20 | 1.75 | 22 | 0.75 |
| HBT8-23.00 | 1/2-20 | 1.75 | 23 | 0.75 |
| HBT10-4.00 | 5/8-18 | 1.75 | 4 | 0.875 |
| HBT10-5.00 | 5/8-18 | 2 | 5 | 0.875 |
| HBT10-6.00 | 5/8-18 | 2 | 6 | 0.875 |
| HBT10-7.00 | 5/8-18 | 2 | 7 | 0.875 |
| HBT10-8.00 | 5/8-18 | 2 | 8 | 0.875 |
| HBT10-9.00 | 5/8-18 | 2 | 9 | 0.875 |
| HBT10-10.00 | 5/8-18 | 2 | 10 | 0.875 |
| HBT10-11.00 | 5/8-18 | 2 | 11 | 0.875 |
| HBT10-12.00 | 5/8-18 | 2 | 12 | 0.875 |
| HBT10-13.00 | 5/8-18 | 2 | 13 | 0.875 |
| HBT10-14.00 | 5/8-18 | 2 | 14 | 0.875 |
| HBT10-15.00 | 5/8-18 | 2 | 15 | 0.875 |
| HBT10-16.00 | 5/8-18 | 2 | 16 | 0.875 |
| HBT10-17.00 | 5/8-18 | 2 | 17 | 0.875 |
| HBT10-18.00 | 5/8-18 | 2 | 18 | 0.875 |
| HBT10-19.00 | 5/8-18 | 2 | 19 | 0.875 |
| HBT10-20.00 | 5/8-18 | 2 | 20 | 0.875 |
| HBT10-21.00 | 5/8-18 | 2 | 21 | 0.875 |
| HBT10-22.00 | 5/8-18 | 2 | 22 | 0.875 |
| HBT10-23.00 | 5/8-18 | 2 | 23 | 0.875 |
| HBT10-24.00 | 5/8-18 | 2 | 24 | 0.875 |
| HBT10-25.00 | 5/8-18 | 2 | 25 | 0.875 |
| HBT10-26.00 | 5/8-18 | 2 | 26 | 0.875 |
| HBT12-4.00 | 3/4-16 | 1.75 | 4 | 1 |
| HBT12-5.00 | 3/4-16 | 2 | 5 | 1 |
| HBT12-6.00 | 3/4-16 | 2.5 | 6 | 1 |
| HBT12-7.00 | 3/4-16 | 2.5 | 7 | 1 |
| HBT12-8.00 | 3/4-16 | 2.5 | 8 | 1 |
| HBT12-9.00 | 3/4-16 | 2.5 | 9 | 1 |
| HBT12-10.00 | 3/4-16 | 2.5 | 10 | 1 |
| HBT12-11.00 | 3/4-16 | 2.5 | 11 | 1 |
| HBT12-12.00 | 3/4-16 | 2.5 | 12 | 1 |
| HBT12-13.00 | 3/4-16 | 2.5 | 13 | 1 |
| HBT12-14.00 | 3/4-16 | 2.5 | 14 | 1 |
| HBT12-15.00 | 3/4-16 | 2.5 | 15 | 1 |
| HBT12-16.00 | 3/4-16 | 2.5 | 16 | 1 |
| HBT12-17.00 | 3/4-16 | 2.5 | 17 | 1 |
| HBT12-18.00 | 3/4-16 | 2.5 | 18 | 1 |
| HBT12-19.00 | 3/4-16 | 2.5 | 19 | 1 |
| HBT12-20.00 | 3/4-16 | 2.5 | 20 | 1 |
| HBT12-21.00 | 3/4-16 | 2.5 | 21 | 1 |
| HBT12-22.00 | 3/4-16 | 2.5 | 22 | 1 |
| HBT12-23.00 | 3/4-16 | 2.5 | 23 | 1 |
| HBT12-24.00 | 3/4-16 | 2.5 | 24 | 1 |
| HBT12-25.00 | 3/4-16 | 2.5 | 25 | 1 |
| HBT12-26.00 | 3/4-16 | 2.5 | 26 | 1 |
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 TURNBUCKLE HEX BAR Are Used
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FAQ
TURNBUCKLE HEX BAR Frequently Asked Questions
What is the HBT12-21.00 turnbuckle hex bar used for?
The HBT12-21.00 is an extended-reach female-female hex bar turnbuckle with 3/4-16 thread on both ends (one RH, one LH) and a 21 in. total body length, used to fine-tune installed length in wheel alignment adjustment, suspension geometry tuning, and steering tie rod assemblies — thread a rod end or ball joint into each end, then turn the hex body to adjust.
What are the hex size and thread engagement of the HBT12-21.00?
Hex across flats is 1 in., total body length is 21 in., and each end provides roughly 2.5 in. of internal thread engagement.
How does the RH/LH threading on the HBT12-21.00 work?
One end of the HBT12-21.00 is right-hand threaded and the other left-hand threaded, so rotating the hex body with a wrench extends or shortens the overall assembly in fine increments — this is what allows wheel alignment adjustment and prevents damage from toe-in or toe-out without removing either rod end.
What material is the HBT12-21.00 made from?
Carbon steel, silver zinc plated.
What other lengths are available in the HBT12 (3/4-16) size?
All HBT12 turnbuckles use 3/4-16 thread and a 1 in. hex; SYZ's HBT12 lineup spans lengths from 2 in. to 26 in., with metric thread and special hex sizes available in volume.
What's the difference between the HBT12-21.00 and SYZ's LBA linkage adjuster?
The HBT12-21.00 is a female-female hex bar turnbuckle that threads a rod end into each side; for single-end female adjustment (threading only one end while the other is fixed), SYZ's LBA linkage adjuster series is the alternative to use instead.