TP-5648 8/93 Common Hardware 10-5
General Torque Specifications
The values given are for clean, dry threads.
AMERICAN STANDARD
Size Measurement Grade 2 Grade 5 Grade 8 Grade 2 or 5
Assembled in Cast Iron or Steel Assembled in Aluminum
8-32 in. lbs. (Nm) 20 (2.3) 25 (2.8) - 20(2.3)
10-24 in. lbs. (Nm) 32 (3.6) 40 (4.5) - 32(3.6)
10-32 in. lbs. (Nm) 32 (3.6) 40 (4.5) - -
1/4-20 in. lbs. (Nm) 70 (7.9) 115 (13) 165 (18.6) 70(7.9)
1/4-28 in. lbs. (Nm) 85 (9.6) 140 (15.8) 200 (22.6) -
5/16-18 in. lbs. (Nm) 150 (17) 250 (28.2) 350 (40) 150 (17)
5/16-24 in. lbs. (Nm) 165 (18.6) 270 (30.5) 360 (41) -
3/8-16 ft. lbs. (Nm) 22 (30) 35 (45) 50 (65)
3/8-24 ft. lbs. (Nm) 25 (35) 40 (54) 60 (80)
7/16-14 ft. lbs. (Nm) 35 (45) 55 (75) 80 (108)
7/16-20 ft. lbs. (Nm) 45 (54) 75 (105) 105 (142)
1/2-13 ft. lbs. (Nm) 50 (65) 80 (110) 115 (155)
1/2-20 ft. lbs. (Nm) 70 (95) 105 (140) 165 (224)
9/16-12 ft. lbs. (Nm) 75 (105) 125 (165) 175 (237)
9/16-18 ft. lbs. (Nm) 100 (136) 165 (224) 230 (312)
5/8-11 ft. lbs. (Nm) 110 (149) 180 (244) 260 (353)
5/8-18 ft. lbs. (Nm) 140 (190) 230 (312) 330 (447)
3/4-10 ft. lbs. (Nm) 150 (203) 245 (322) 350 (475)
3/4-16 ft. lbs. (Nm) 200 (271) 325 (440) 470 (637)
1/4-20 x 1
Major Thread Diameter In Fractional
Inches Or Screw Number Size
Length In Inches
Threads Per Inch
American Standard
Sample Dimensions
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