Farm King RT17 - Imperial Chart

Specifications And Shipping Kit Numbers - RT17, RT19 Tedder
75
Hardware Torque Values (Cont’d)
Imperial Chart
NOTE: Do not use the values listed in the charts if a different torque value or tightening procedure is
specified in this manual for a specific application. Torque values listed are for general use only.
Use the following charts to determine the correct torque when checking, adjusting or replacing hardware.
Torque values are listed in newton-meters (inch* or foot pounds) for normal assembly applications.
Nominal
Size
SAE Grade 5 SAE Grade 8 LOCK NUTS
Unplated
or Plated
Silver
Plated
W / ZnCr
Gold"
Unplated
or Plated
Silver
Plated
W / ZnCr
Gold"
Unplated
or Plated
Silver
Plated
W / ZnCr
Gold"
Grade W /
Gr. 5 Bolt
Grade
W / Gr. 8
Bolt
1/4 6.2 (55*) 8.1 (72*) 9.7 (86*) 12.6 (112*) 13.6 (121*) 17.7 (157*) 6.9 (61*) 9.8 (86*)
5/16 13 (115*) 17 (149*) 20 (178*) 26 (229*) 28 (250*) 37 (324*) 14 (125*) 20 (176*)
3/8 23 (17) 30 (22) 35 (26) 46 (34) 50 (37) 65 (48) 26 (19) 35 (26)
7/16 37 (27) 47 (35) 57 (42) 73 (54) 80 (59) 104 (77) 41 (30) 57 (42)
1/2 57 (42) 73 (54) 87 (64) 113 (83) 123 (91) 159 (117) 61 (45) 88 (64)
9/16 81 (60) 104 (77) 125 (92) 163 (120) 176 (130) 229 (169) 88 (65) 125 (92)
5/8 112 (83) 145 (107) 174 (128) 224 (165) 244 (180) 316 (233) 122 (90) 172 (127)
3/4 198 (146) 256 (189) 306 (226) 397 (293) 432 (319) 560 (413) 217 (160) 306 (226)
7/8 193 (142) 248 (183) 495 (365) 641 (473) 698 (515) 904 (667) 350 (258) 494 (364)
1 289 (213) 373 (275) 742 (547) 960 (708) 1048 (773) 1356 (1000) 523 (386) 739 (545)
NOTE: Torque values shown with * are inch pounds.
Identification of Hex Cap Screws and Carriage Bolts
Identification of Hex Nuts and Lock Nuts
NOTCHES
MARKS
GRADE IDENTIFICATION
GRADE A: NO NOTCHES
GRADE B: ONE CIRCUMFERENTIAL NOTCH
GRADE C: TWO CIRCUMFERENTIAL NOTCHES
GRADE IDENTIFICATION
GRADE A: NO MARK
GRADE B: LETTER B
GRADE C: LETTER C
GRADE IDENTIFICATION
GRADE A: NO MARKS
GRADE B: THREE MARKS
GRADE C: SIX MARKS
MARKS NEED NOT BE
LOCATED AT CORNERS
GRADE 2 SAE
BOLT
GRADE 5 SAE
BOLTS
GRADE 8 SAE
BOLTS
GRADE 2 SAE
NUTS
GRADE 5 SAE
HEX NUTS
GRADE 8 SAE
HEX NUTS
B