Bore 12 / M12 X 1.75 ThreadSA12TK SAL12TK 12 M12 X 1.75 Carbon Steel Male Rod End (Metric)
SA SI Product Overview
SA12TK / SAL12TK is a three-piece metric self-lubricating male rod end with a 12 mm bore (B) and 32.00 mm body housing diameter (D). A 52100 steel ball — precision ground, heat treated, and hard chrome plated — runs in a copper alloy race lined with PTFE for consistent, maintenance-free articulation. Body length (AM) is 54 mm, thread shank engagement (CM) is 33 mm, body width (W) is 16 mm, body thickness (T) is 12.00 mm. Approximate weight: 87 g.
Rated at 32.0 kN static radial load with ±13° misalignment angle, this M12 X 1.75 threaded male rod end suits industrial machinery, agricultural equipment, and moderate-to-heavy linkage systems. The copper alloy PTFE-lined race distinguishes the SA-TK series from nylon-race designs, offering better dimensional stability and a metal-like feel with self-lubricating properties. Carbon steel body with silver zinc plating.
Available in right-hand (SA12TK) and left-hand (SAL12TK) metric thread configurations. Studded version (add ‘-S’ suffix, e.g., SA12TK-S) also available. Yellow zinc plating option available. Inch-thread equivalent is the VM series.
SA SI Series — Full Size Range
All available sizes in the SA SI series. Can’t find your size? Contact us for custom dimensions.
| RIGHT HAND PART NO. | LEFT HAND PART NO. | B DIA. +0.065 -0.012 | D DIA. +0.38 -0.38 | W WIDTH +0.12 -0.12 | T WIDTH +0.13 -0.13 | AM LENGTH +0.40 -0.40 | N THREAD METRIC MALE | CM LENGTH +1.00 -1.00 | a° MIS. ANGLE REF. | STATIC RADIAL LOAD KN | APPROX WEIGHT (GRAMS) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SA5TK | SAL5TK | 5 | 18.00 | 8 | 6.00 | 33 | M5 X 0.8 | 19 | 4 | 7.5 | 13 |
| SA6TK | SAL6TK | 6 | 20.00 | 9 | 6.75 | 36 | M6 X 1.0 | 22 | 9 | 9.3 | 20 |
| SA8TK | SAL8TK | 8 | 24.00 | 12 | 9.00 | 42 | M8 X 1.25 | 25 | 13 | 16.7 | 33 |
| SA10TK | SAL10TK | 10 | 28.00 | 14 | 10.50 | 48 | M10 X 1.5 | 29 | 13 | 23.4 | 56 |
| SA12TK | SAL12TK | 12 | 32.00 | 16 | 12.00 | 54 | M12 X 1.75 | 33 | 13 | 32.0 | 87 |
| SA14TK | SAL14TK | 14 | 36.00 | 19 | 13.50 | 60 | M14 X 2.0 | 38 | 13 | 41.9 | 129 |
| SA16TK | SAL16TK | 16 | 42.00 | 21 | 15.00 | 66 | M16 X 2.0 | 40 | 13 | 52.7 | 189 |
| SA18TK | SAL18TK | 18 | 46.00 | 23 | 16.50 | 72 | M18 X 1.5 | 44 | 13 | 63.8 | 267 |
| SA20TK | SAL20TK | 20 | 50.00 | 25 | 18.00 | 78 | M20 X 1.5 | 47 | 13 | 78.1 | 348 |
| SA22TK | SAL22TK | 22 | 54.00 | 28 | 20.00 | 84 | M22 X 1.5 | 51 | 13 | 97.2 | 443 |
| SA25TK | SAL25TK | 25 | 60.00 | 31 | 22.00 | 94 | M24 X 2.0 | 58 | 13 | 122.1 | 600 |
| SA30TK | SAL30TK | 30 | 70.00 | 37 | 25.00 | 110 | M30 X 2.0 | 71 | 13 | 168.4 | 1030 |
| SA35TK | SAL35TK | 35 | 80.00 | 43 | 28.00 | 125 | M36 X 2.0 | 77 | 13 | 205.7 | 1600 |
| RIGHT HAND PART NO. | LEFT HAND PART NO. | B | D | W | T | AF | N | CF | a° | STATIC | GRAMS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SI5TK | SIL5TK | 5 | 18.00 | 8 | 6.00 | 27 | M5 X 0.8 | 10 | 4 | 7.5 | 18 |
| SI6TK | SIL6TK | 6 | 20.00 | 9 | 6.75 | 30 | M6 X 1.0 | 12 | 9 | 9.3 | 27 |
| SI8TK | SIL8TK | 8 | 24.00 | 12 | 9.00 | 36 | M8 X 1.25 | 16 | 13 | 16.7 | 46 |
| SI10TK | SIL10TK | 10 | 28.00 | 14 | 10.50 | 43 | M10 X 1.5 | 20 | 13 | 23.4 | 76 |
| SI12TK | SIL12TK | 12 | 32.00 | 16 | 12.00 | 50 | M12 X 1.75 | 22 | 13 | 32.0 | 115 |
| SI14TK | SIL14TK | 14 | 36.00 | 19 | 13.50 | 57 | M14 X 2.0 | 25 | 13 | 41.9 | 170 |
| SI16TK | SIL16TK | 16 | 42.00 | 21 | 15.00 | 64 | M16 X 2.0 | 28 | 13 | 52.7 | 230 |
| SI18TK | SIL18TK | 18 | 46.00 | 23 | 16.50 | 71 | M18 X 1.5 | 32 | 13 | 63.8 | 320 |
| SI20TK | SIL20TK | 20 | 50.00 | 25 | 18.00 | 77 | M20 X 1.5 | 33 | 13 | 78.1 | 415 |
| SI22TK | SIL22TK | 22 | 54.00 | 28 | 20.00 | 84 | M22 X 1.5 | 37 | 13 | 97.2 | 540 |
| SI25TK | SIL25TK | 25 | 60.00 | 31 | 22.00 | 94 | M24 X 2.0 | 42 | 13 | 122.1 | 750 |
| SI30TK | SIL30TK | 30 | 70.00 | 37 | 25.00 | 110 | M30 X 2.0 | 51 | 13 | 168.4 | 1130 |
| SI35TK | SIL35TK | 35 | 80.00 | 43 | 28.00 | 125 | M36 X 2.0 | 56 | 13 | 205.7 | 1600 |
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.
Where SA SI Rod Ends Are Used
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SA SI Frequently Asked Questions
What is the difference between SA-TK and SI-TK rod ends?
SA-TK parts are male-thread rod ends and SI-TK parts are female-thread rod ends. Both belong to the same 3-piece self-lubricating metric series and share the same core material direction.
What materials are used in the SA-TK SI-TK series?
This series uses a hard-chrome-plated 52100 bearing steel ball, a copper alloy race with PTFE lining, and a carbon steel body with silver zinc plating.
Is the SA-TK SI-TK series self-lubricating?
Yes. The PTFE-lined copper alloy race provides self-lubricating articulation for metric linkage systems that need smoother movement and reduced maintenance.
Are studded versions available in the SA-TK SI-TK series?
Yes. Studded configurations are available by adding S to the suffix, for example SA12TK-S, depending on the exact size and build requirement.
Is there an inch-size equivalent for this series?
Yes. The inch-size equivalent referenced in the source specification is the VM VF series, which can be reviewed when inch-thread compatibility is required.
What applications are best suited to SA-TK SI-TK rod ends?
SA-TK SI-TK rod ends are well suited to agricultural machinery, industrial motion systems, mechanical control assemblies, packaging equipment, and other metric linkages that benefit from a self-lubricating 3-piece design.