About Air Cylinders
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About Nuts, Materials, and Finishes
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Low-Strength Steel Coupling Nuts
Also known as extension nuts, use these to connect and extend threaded rods. They're about half the strength of medium-strength steel coupling nuts for use in light duty fastening applications.
Zinc-plated steel coupling nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Each | |||||
|---|---|---|---|---|---|
| Thread Size  | Lg. | Wd. | 1-9 | 10-Up | |
Zinc-Plated Steel | |||||
| 1 1/2"-12 | 3 1/2" | 2" | 000000000 | 000000 | 000000 |
High-Strength Steel Coupling Nuts—Grade 8
Also known as extension nuts, use these to connect and extend threaded rods. Made from Grade 8 steel, they're about 25% stronger than medium-strength steel coupling nuts. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
Each | |||||
|---|---|---|---|---|---|
| Thread Size | Lg. | Wd. | 1-9 | 10-Up | |
Zinc-Plated Steel—Grade 8 | |||||
| 1 1/2"-12 | 3 1/2" | 2 1/4" | 000000000 | 0000000 | 000000 |
Rod Alignment Couplers
Increase cylinder life by fixing alignment problems between air or hydraulic cylinders and driven components. Couplers have a threaded end that moves to compensate for the angle of misalignment, reducing wear on cylinder bearings and seals. Couplers have a male and female end.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Body Material | OD | Lg. | Max. Pull Force, lbs. | Each | |
5° of Misalignment | ||||||
|---|---|---|---|---|---|---|
| 1 1/2"-12 | Steel | 4" | 6 5/8" | 183,000 | 000000 | 0000000 |