7/23/2019 Torque Value for Nylon 2

1/3

Torque Table Guide

Suggested Tightening

Torque Values for Nonferrous

Threaded Fasteners

Torque Table

The following suggested tightening torques provide an excellent starting point for

determining torque requirements.

Remember, you may need to increase or reduce these numbers based on the individual

joint.

Bolt Size

18-8

Stainless

Steel

Brass Silicon

Bronze

Aluminum

2024-T4

316 Stainless

Steel Monel Nylon

2 56 2.5 2.0 2.3 1.4 2.6 2.5 0.44

2 64 3.0 2.5 2.8 1.7 3.2 3.1

3 48 3.9 3.2 3.6 2.1 4.0 4.0

3 - 56 4.4 3.6 4.1 2.4 4.6 4.5

4 - 40 5.2 4.3 4.8 2.9 5.5 5.3 1.19

4 - 48 6.6 5.4 6.1 3.6 6.9 6.7

5 - 40 7.7 6.3 7.1 4.2 8.1 7.8

5 - 44 9.4 7.7 8.7 5.1 9.8 9.6

6 - 32 9.6 7.9 8.9 5.3 10.1 9.8 2.14

6 - 40 12.1 9.9 11.2 6.6 12.7 12.3

8 - 32 19.8 16.2 18.4 10.8 20.7 20.2 4.30

8 - 36 22.0 18.0 20.4 12.0 23.0 22.4

10 - 24 22.8 18.6 21.2 13.8 23.8 25.9 6.61

10 - 32 31.7 25.9 29.3 19.2 33.1 34.9 8.20

7/23/2019 Torque Value for Nylon 2

2/3

1/4" - 20 75.2 61.5 68.8 45.6 78.8 85.3 16.00

1/4" - 28 94.0 77.0 87.0 57.0 99.0 106.0 20.80

5/16" - 18 132.0 107.0 123.0 80.0 138.0 149.0 34.90

5/16" - 24 142.0 116.0 131.0 86.0 147.0 160.0

3/8" - 16 236.0 192.0 219.0 143.0 247.0 266.0

3/8" - 24 259.0 212.0 240.0 157.0 271.0 294.0

7/16" - 14 376.0 317.0 349.0 228.0 393.0 427.0

7/16" - 20 400.0 327.0 371.0 242.0 418.0 451.0

1/2" - 13 517.0 422.0 480.0 313.0 542.0 584.0

1/2" - 20 541.0 443.0 502.0 328.0 565.0 613.0

9/16" - 12 682.0 558.0 632.0 413.0 713.0 774.0

9/16" - 18 752.0 615.0 697.0 456.0 787.0 855.0

5/8" - 11 1110.0 907.0 1030.0 715.0 1160.0 1330.0

5/8" - 18 1244.0 1016.0 1154.0 798.0 1301.0 1482.0

3/4" - 10 1530.0 1249.0 1416.0 980.0 1582.0 1832.0

3/4" - 16 1490.0 1220.0 1382.0 958.0 1558.0 1790.0

7/8" - 9 2328.0 1905.0 2140.0 1495.0 2430.0 2775.0

7/8" - 14 2318.0 1895.0 2130.0 1490.0 2420.0 2755.0

1" - 8 3440.0 2815.0 3185.0 2205.0 3595.0 4130.0

1" - 14 3110.0 2545.0 2885.0 1995.0 3250.0 3730.0

11/8" - 7 413.0 ft-lbs 337.0 383.0 265.0 ft-lbs 432.0 ft-lbs 499.0

7/23/2019 Torque Value for Nylon 2

3/3

ft-lbs ft-lbs ft-lbs

1-1/8" - 12 390.0 ft-lbs 318.0

ft-lbs

361.0

ft-lbs

251.0 ft-lbs 408.0 ft-lbs

1-1/4" - 7 523.0 ft-lbs 428.0

ft-lbs

485.0

ft-lbs

336.0 ft-lbs 546.0 ft-lbs 627.0

ft-lbs

1-1/4" - 12 480.0 ft-lbs 349.0

ft-lbs

447.0

ft-lbs

308.0 ft-lbs 504.0 ft-lbs 575.0

ft-lbs

1-1/2" - 6 888.0 ft-lbs 727.0

ft-lbs

822.0

ft-lbs

570.0 ft-lbs 930.0 ft-lbs 1064.0

ft-lbs

1-1/2" - 12 703.0 ft-lbs 575.0

ft-lbs

651.0

ft-lbs

450.0 ft-lbs 732.0 ft-lbs 840.0

ft-lbs

This table is offered as the suggested maximum torquing values for threaded products and is only a guide. Actual tests were

conducted on dry or near-dry products. Mating parts were wiped clean of chips and foreign matter. A lubricated bolt requires less

torque to attain the same clamping force as a nonlubricated bolt. All values shown on chart except for nylon represent a safe working

torque; in the case of nylon only, the fi gures represent breaking torque.

AIR AUTOMATION ENGINEERING

230 Commerce Circle South, P.O. Box 32709, Fridley, MN 55432

(763) 571-4970, (800) 231-9205, Fax (763) 571-4923

Web Site: www.airautomation.com

E-mail: aae@airautomation.com