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DFARS Specialty Metals
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.
Inch Sizes
Angle of Misalignment
Thread Size | Body Material | OD | Lg. | Max. Pull Force, lbs. | Each | |
1° of Misalignment | ||||||
|---|---|---|---|---|---|---|
| 1/4"-28 | Steel | 7/8" | 1 7/8" | 4,000 | 000000 | 000000 |
| 1/4"-28 | 316 Stainless Steel | 1 1/8" | 2 1/4" | 200 | 0000000 | 000000 |
| 5/16"-24 | 316 Stainless Steel | 1 1/8" | 2 1/4" | 400 | 0000000 | 000000 |
| 3/8"-16 | Steel | 7/8" | 1 7/8" | 5,000 | 000000 | 00000 |
| 3/8"-24 | 316 Stainless Steel | 1 1/8" | 2 1/4" | 600 | 0000000 | 000000 |
| 7/16"-20 | 316 Stainless Steel | 1 1/4" | 2 3/4" | 850 | 0000000 | 000000 |
| 1/2"-13 | Steel | 1 1/4" | 2 3/4" | 14,000 | 000000 | 00000 |
| 1/2"-20 | 316 Stainless Steel | 1 1/4" | 2 3/4" | 1,200 | 0000000 | 000000 |
| 5/8"-18 | 316 Stainless Steel | 1 1/4" | 2 3/4" | 1,950 | 0000000 | 000000 |
| 3/4"-16 | 316 Stainless Steel | 1 3/4" | 3 7/16" | 2,850 | 0000000 | 000000 |
| 1"-8 | Steel | 2 1/2" | 4 9/16" | 64,000 | 000000 | 000000 |
| 1"-14 | 316 Stainless Steel | 2 1/2" | 4 9/16" | 5,300 | 0000000 | 000000 |
| 1 3/8"-12 | Steel | 2 1/2" | 4 9/16" | 40,710 | 000000 | 000000 |
2° of Misalignment | ||||||
| 10-32 | Steel | 7/8" | 2" | 1,000 | 0000000 | 00000 |
| 10-32 | 303 Stainless Steel | 7/8" | 2" | 500 | 0000000 | 00000 |
| 1/4"-28 | Steel | 7/8" | 2" | 1,700 | 0000000 | 00000 |
| 1/4"-28 | 303 Stainless Steel | 7/8" | 2" | 1,100 | 0000000 | 00000 |
| 5/16"-24 | Steel | 7/8" | 2" | 8,300 | 0000000 | 00000 |
| 5/16"-24 | 303 Stainless Steel | 7/8" | 2" | 2,800 | 0000000 | 00000 |
| 3/8"-16 | Steel | 7/8" | 2" | 8,300 | 0000000 | 00000 |
| 3/8"-24 | Steel | 7/8" | 2" | 8,300 | 0000000 | 00000 |
| 3/8"-24 | 303 Stainless Steel | 7/8" | 2" | 2,800 | 0000000 | 00000 |
| 7/16"-20 | Steel | 1 1/4" | 2 3/4" | 10,000 | 0000000 | 00000 |
| 7/16"-20 | 303 Stainless Steel | 1 1/4" | 2 3/4" | 3,400 | 0000000 | 000000 |
| 1/2"-20 | Steel | 1 1/4" | 2 3/4" | 14,000 | 0000000 | 00000 |
| 1/2"-20 | 303 Stainless Steel | 1 1/4" | 2 3/4" | 4,700 | 0000000 | 000000 |
| 5/8"-18 | Steel | 1 1/4" | 2 3/4" | 19,000 | 0000000 | 00000 |
| 5/8"-18 | 303 Stainless Steel | 1 1/4" | 2 3/4" | 5,200 | 0000000 | 000000 |
| 3/4"-10 | Steel | 1 3/4" | 3 1/2" | 34,000 | 0000000 | 000000 |
| 3/4"-10 | 303 Stainless Steel | 1 3/4" | 3 1/2" | 11,500 | 0000000 | 000000 |
| 3/4"-16 | Steel | 1 3/4" | 3 1/2" | 34,000 | 0000000 | 000000 |
| 3/4"-16 | 303 Stainless Steel | 1 3/4" | 3 1/2" | 11,500 | 0000000 | 000000 |
| 7/8"-14 | Steel | 1 3/4" | 3 1/2" | 39,000 | 0000000 | 000000 |
| 7/8"-14 | 303 Stainless Steel | 1 3/4" | 3 1/2" | 11,700 | 0000000 | 000000 |
| 1"-14 | Steel | 2 1/2" | 4 7/16" | 64,000 | 0000000 | 000000 |
| 1"-14 | 303 Stainless Steel | 2 1/2" | 4 7/16" | 17,600 | 0000000 | 000000 |
| 1 1/4"-12 | Steel | 2 1/2" | 4 7/16" | 78,000 | 0000000 | 000000 |
| 1 1/4"-12 | 303 Stainless Steel | 2 1/2" | 4 7/16" | 19,500 | 0000000 | 000000 |
5° of Misalignment | ||||||
| 5-40 | Nickel-Plated Brass | 0.47" | 1.2" | 110 | 000000 | 00000 |
| 6-40 | Nickel-Plated Brass | 0.47" | 1.2" | 140 | 000000 | 00000 |
| 8-32 | Nickel-Plated Brass | 0.47" | 1.23" | 175 | 000000 | 00000 |
| 10-32 | Nickel-Plated Brass | 0.63" | 1.79" | 250 | 000000 | 00000 |
| 1/4"-28 | Steel | 0.94" | 1.88" | 760 | 000000 | 00000 |
| 5/16"-18 | Steel | 1.56" | 2 1/4" | __ | 0000000 | 000000 |
| 5/16"-24 | Steel | 0.94" | 1.88" | 1,200 | 000000 | 00000 |
| 3/8"-16 | Steel | 1.56" | 2 1/4" | __ | 0000000 | 000000 |
| 3/8"-24 | Steel | 1.56" | 2 1/4" | 2,425 | 000000 | 00000 |
| 7/16"-20 | Steel | 1.22" | 2.58" | 2,600 | 000000 | 00000 |
| 1/2"-13 | Steel | 1.56" | 2 3/4" | __ | 0000000 | 000000 |
| 1/2"-20 | Steel | 1.61" | 2.86" | 3,500 | 000000 | 00000 |
| 5/8"-18 | Steel | 2 1/8" | 3.437" | 7,150 | 000000 | 00000 |
| 3/4"-10 | Steel | 2 1/8" | 3 7/16" | __ | 0000000 | 000000 |
| 3/4"-16 | Steel | 1.97" | 4.04" | 8,500 | 000000 | 00000 |
| 7/8"-14 | Steel | 2 1/8" | 3.437" | 14,450 | 000000 | 00000 |
| 1"-8 | Steel | 2 3/4" | 4 11/16" | __ | 0000000 | 000000 |
| 1"-14 | Steel | 2 3/4" | 4.687" | 19,425 | 000000 | 000000 |
| 1 1/4"-12 | Steel | 3 1/2" | 6" | 30,825 | 000000 | 000000 |
| 1 1/2"-12 | Steel | 4" | 6 5/8" | 45,750 | 000000 | 000000 |
| 1 3/4"-12 | Steel | 4" | 6 5/8" | 58,350 | 000000 | 000000 |
| 2"-12 | Steel | 5" | 8 5/8" | 77,450 | 000000 | 000000 |
| 2 1/4"-12 | Steel | 6 3/4" | 9 7/8" | 99,250 | 0000000 | 00000000 |
| 1 7/8"-12 | Steel | 5" | 8 5/8" | 67,550 | 000000 | 000000 |
Metric Sizes
Angle of Misalignment
| Thread Size | Body Material | OD, mm | Lg., mm | Max. Pull Force, lbs. | Each | |
2° of Misalignment | ||||||
|---|---|---|---|---|---|---|
| M6 × 1 mm | Steel | 22.2 | 50.8 | 1,300 | 0000000 | 000000 |
| M6 × 1 mm | 303 Stainless Steel | 22.2 | 50.8 | 800 | 0000000 | 000000 |
| M8 × 1.25 mm | Aluminum | 25.4 | 27.2 | 49 | 0000000 | 00000 |
| M8 × 1.25 mm | Steel | 22.2 | 50.8 | 6,000 | 0000000 | 00000 |
| M8 × 1.25 mm | 303 Stainless Steel | 22.2 | 50.8 | 2,500 | 0000000 | 000000 |
| M10 × 1.25 mm | Aluminum | 30.6 | 33 | 126 | 0000000 | 00000 |
| M10 × 1.25 mm | Steel | 22.2 | 50.8 | 5,300 | 000000 | 00000 |
| M10 × 1.25 mm | 303 Stainless Steel | 22.2 | 50.8 | 2,800 | 0000000 | 000000 |
| M12 × 1.25 mm | Steel | 31.8 | 69.9 | 12,000 | 000000 | 00000 |
| M12 × 1.25 mm | 303 Stainless Steel | 31.8 | 69.9 | 3,200 | 0000000 | 000000 |
| M14 × 1.5 mm | Aluminum | 40.4 | 43 | 198 | 0000000 | 00000 |
| M20 × 1.5 mm | Steel | 44.5 | 88.9 | 29,000 | 000000 | 000000 |
| M20 × 1.5 mm | 303 Stainless Steel | 44.5 | 88.9 | 11,500 | 0000000 | 000000 |
| M16 × 1.5 mm | Steel | 31.8 | 69.9 | 14,000 | 000000 | 000000 |
| M16 × 1.5 mm | 303 Stainless Steel | 31.8 | 69.9 | 5,000 | 0000000 | 000000 |
5° of Misalignment | ||||||
| M4 × 0.7 mm | Steel | 12 | 26 | 12 | 000000 | 00000 |
| M4 × 0.7 mm | 304 Stainless Steel | 14.4 | 26 | 17 | 0000000 | 00000 |
| M5 × 0.8 mm | Steel | 16 | 34.5 | 28 | 000000 | 00000 |
| M5 × 0.8 mm | 304 Stainless Steel | 19 | 34.5 | 47 | 0000000 | 00000 |
| M6 × 1 mm | Steel | 16 | 34.5 | 27.65 | 000000 | 00000 |
| M8 × 1.25 mm | Aluminum | 21 | 44 | 67 | 0000000 | 00000 |
| M8 × 1.25 mm | Steel | 21 | 44 | __ | 000000 | 00000 |
| M8 × 1.25 mm | 304 Stainless Steel | 24.8 | 43.9 | 247 | 0000000 | 00000 |
| M10 × 1.25 mm | Aluminum | 24 | 49.6 | 180 | 0000000 | 00000 |
| M10 × 1.25 mm | Steel | 24 | 49.5 | 562 | 000000 | 00000 |
| M10 × 1.25 mm | 304 Stainless Steel | 29 | 49.5 | 562 | 0000000 | 00000 |
| M14 × 1.5 mm | Aluminum | 31 | 60 | 281 | 0000000 | 00000 |
| M14 × 1.5 mm | Steel | 31 | 60 | 989 | 0000000 | 00000 |
| M14 × 1.5 mm | 304 Stainless Steel | 38.4 | 60 | 1,348 | 0000000 | 000000 |
| M18 × 1.5 mm | Aluminum | 41 | 74.5 | 697 | 0000000 | 00000 |
| M18 × 1.5 mm | Steel | 41 | 74.5 | 2,742 | 0000000 | 00000 |
| M18 × 1.5 mm | 304 Stainless Steel | 49.2 | 74.5 | 2,472 | 0000000 | 000000 |