Torque Values TM2362 (25JUN08) 00-0003-4 450DLC Excavator Repair 062508 PN=26 00 0003 4 Unified Inch Bolt and Cap Screw Torque Values –UN–27SEP99 TORQ1A Top—SAE Grade and Head Markings; Bottom—SAE Grade and Nut Markings UNIFIED INCH BOLT AND CAP SCREW TORQUE VALUES—Tolerance is ±10% unless otherwise specified Grade 1 (No Mark) Grade 2a (No Mark) Grade 5, 5.1 or 5.2 Grade 8 or 8.2 Thread Lubricatedb Dryc Lubricatedb Dryc Lubricatedb Dryc Lubricatedb Dryc Size N•m (lb-ft) N•m (lb-ft) N•m (lb-ft) N•m (lb-ft) N•m (lb-ft) N•m (lb-ft) N•m (lb-ft) N•m (lb-ft) 1/4 3.8 (2.8) 4.7 (3.5) 6 (4.4) 7.5 (5.5) 9.5 (7) 12 (9) 13.5 (10) 17 (12.5) 5/16 7.7 (5.7) 9.8 (7.2) 12 (9) 15.5 (11.5) 19.5 (14.5) 25 (18.5) 28 (20.5) 35 (26) 3/8 13.5 (10) 17.5 (13) 22 (16) 27.5 (20) 35 (26) 44 (32.5) 49 (36) 63 (46) 7/16 22 (16) 28 (20.5) 35 (26) 44 (32.5) 56 (41) 70 (52) 80 (59) 100 (74) 1/2 34 (25) 42 (31) 53 (39) 67 (49) 85 (63) 110 (80) 120 (88) 155 (115) 9/16 48 (35.5) 60 (45) 76 (56) 95 (70) 125 (92) 155 (115) 175 (130) 220 (165) 5/8 67 (49) 85 (63) 105 (77) 135 (100) 170 (125) 215 (160) 240 (175) 305 (225) 3/4 120 (88) 150 (110) 190 (140) 240 (175) 300 (220) 380 (280) 425 (315) 540 (400) 7/8 190 (140) 240 (175) 190 (140) 240 (175) 490 (360) 615 (455) 690 (510) 870 (640) 1 285 (210) 360 (265) 285 (210) 360 (265) 730 (540) 920 (680) 1030 (760) 1300 (960) 1-1/8 400 (300) 510 (375) 400 (300) 510 (375) 910 (670) 1150 (850) 1450 (1075) 1850 (1350) 1-1/4 570 (420) 725 (535) 570 (420) 725 (535) 1280 (945) 1630 (1200) 2050 (1500) 2600 (1920) 1-3/8 750 (550) 950 (700) 750 (550) 950 (700) 1700 (1250) 2140 (1580) 2700 (2000) 3400 (2500) 1-1/2 990 (730) 1250 (930) 990 (730) 1250 (930) 2250 (1650) 2850 (2100) 3600 (2650) 4550 (3350) a Grade 2 applies for hex cap screws (not hex bolts) up to 6 in.
(152 mm) long. Grade 1 applies for hex cap screws over 6 in. (152 mm) long, and for all other types of bolts and screws of any length. b "Lubricated" means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings. c "Dry" means plain or zinc plated without any lubrication. DO NOT use these values if a different torque value or tightening Make sure fastener threads are clean and that you properly start procedure is given for a specific application. Torque values listed are thread engagement. This will prevent them from failing when for general use only. Check tightness of fasteners periodically. tightening.
Shear bolts are designed to fail under predetermined loads. Always Tighten plastic insert or crimped steel-type lock nuts to approximately replace shear bolts with identical grade. 50 percent of the dry torque shown in the chart, applied to the nut, not to the bolt head. Tighten toothed or serrated-type lock nuts to the Fasteners should be replaced with the same or higher grade. If full torque value. higher grade fasteners are used, these should only be tightened to the strength of the original.
OUT3035,TORQUE1 –19–14JAN04–1/1 UNIFIED INCH BOLT AND CAP SCREW TORQUE VALUES—Tolerance is ±10% unless otherwise specified Grade 1 (No Mark) Grade 2a (No Mark) Grade 5, 5.1 or 5.2 Grade 8 or 8.2 Thread Size Lubricatedb N•m (lb-ft) Dryc N•m (lb-ft) Lubricatedb N•m (lb-ft) Dryc N•m (lb-ft) Lubricatedb N•m (lb-ft) Dryc N•m (lb-ft) Lubricatedb N•m (lb-ft) Dryc N•m (lb-ft) 1/4 3.8 (2.8) 4.7 (3.5) 6 (4.4) 7.5 (5.5) 9.5 (7) 12 (9) 13.5 (10) 17 (12.5) 5/16 7.7 (5.7) 9.8 (7.2) 12 (9) 15.5 (11.5) 19.5 (14.5) 25 (18.5) 28 (20.5) 35 (26) 3/8 13.5 (10) 17.5 (13) 22 (16) 27.5 (20) 35 (26) 44 (32.5) 49 (36) 63 (46) 7/16 22 (16) 28 (20.5) 35 (26) 44 (32.5) 56 (41) 70 (52) 80 (59) 100 (74) 1/2 34 (25) 42 (31) 53 (39) 67 (49) 85 (63) 110 (80) 120 (88) 155 (115) 9/16 48 (35.5) 60 (45) 76 (56) 95 (70) 125 (92) 155 (115) 175 (130) 220 (165) 5/8 67 (49) 85 (63) 105 (77) 135 (100) 170 (125) 215 (160) 240 (175) 305 (225) 3/4 120 (88) 150 (110) 190 (140) 240 (175) 300 (220) 380 (280) 425 (315) 540 (400) 7/8 190 (140) 240 (175) 190 (140) 240 (175) 490 (360) 615 (455) 690 (510) 870 (640) 1 285 (210) 360 (265) 285 (210) 360 (265) 730 (540) 920 (680) 1030 (760) 1300 (960) 1-1/8 400 (300) 510 (375) 400 (300) 510 (375) 910 (670) 1150 (850) 1450 (1075) 1850 (1350) 1-1/4 570 (420) 725 (535) 570 (420) 725 (535) 1280 (945) 1630 (1200) 2050 (1500) 2600 (1920) 1-3/8 750 (550) 950 (700) 750 (550) 950 (700) 1700 (1250) 2140 (1580) 2700 (2000) 3400 (2500) 1-1/2 990 (730) 1250 (930) 990 (730) 1250 (930) 2250 (1650) 2850 (2100) 3600 (2650) 4550 (3350) a Grade 2 applies for hex cap screws (not hex bolts) up to 6 in.
(152 mm) long. Grade 1 applies for hex cap screws over 6 in. (152 mm) long, and for all other types of bolts and screws of any length. b "Lubricated" means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings. c "Dry" means plain or zinc plated without any lubrication.