System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Fastener Strength Grade/Class Fastener StrengthGrade/Class |
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Material Material |
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Drive Style Drive Style |
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Thread Spacing Thread Spacing |
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Threading Threading |
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![]() | Fully Threaded |
Thread Direction Thread Direction |
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Finish Finish |
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Thread Fit Thread Fit |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Body Material Body Material |
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Coupling Nut Profile Coupling Nut Profile |
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OD OD |
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Maximum Pull Force Maximum Pull Force |
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Angle of Misalignment Angle of Misalignment |
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About Air Cylinders
More
About Nuts, Materials, and Finishes
More
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 | |||||
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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 | |||||
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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 | ||||||
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1 1/2"-12 | Steel | 4" | 6 5/8" | 183,000 | 000000 | 0000000 |