SECTION 00 - GENERAL INFORMATION
00-10
NOTE: Torque values shown with * are inch pounds.
IDENTIFICATION
CAP SCREWS AND CARRIAGE BOLTS
LOCKNUTS
1 213 (289) 275 (373) 547 (742) 708 (960) 773 (1048) 1000 (1356) 386 (523) 545 (739) 1
7/8 142 (193) 183 (248) 365 (495) 473 (641) 515 (698) 667 (904) 258 (350) 364 (494) 7/8
3/4 146 (198) 189 (256) 226 (306) 293 (397) 319 (432) 413 (560) 160 (217) 226 (306) 3/4
5/8 83 (112) 107 (145) 128 (174) 165 (224) 180 (244) 233 (316) 90 (122) 127 (172) 5/8
9/16 60 (81) 77 (104) 92 (125) 120 (163) 130 (176) 169 (229) 65 (88) 92 (125) 9/16
1/2 42 (57) 54 (73) 64 (87) 83 (113) 91 (123) 117 (159) 45 (61) 64 (88) 1/2
7/16 27 (37) 35 (47) 42 (57) 54 (73) 59 (80) 77 (104) 30 (41) 42 (57) 7/16
3/8 17 (23) 22 (30) 26 (35) 34 (46) 37 (50) 48 (65) 19 (26) 26 (35) 3/8
5/16 115* (13) 149* (17) 178* (20) 229* (26) 250* (28) 324* (37) 125* (14) 176* (20) 5/16
1/4 55* (6.2) 72* (8.1) 86* (9.7) 112* (13) 121* (14) 157* (18) 61* (6.9) 86* (9.8) 1/4
MINIMUM HARDWARE TIGHTENING TORQUES
IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS
INCH HARDWARE AND LOCKNUTS
NOMINAL UNPLATED PLATED UNPLATED PLATED UNPLATED PLATED GR.B GR.C NOMINAL
SIZE or W/ZnCr or W/ZnCr or W/ZnCr w/GR5 w/GR8 SIZE
PLATED PLATED PLATED BOLT BOLT
SILVER GOLD SILVER GOLD SILVER GOLD
SAE GRADE 2 SAE GRADE 5 SAE GRADE 8 LOCKNUTS
SAE GRADE 2 SAE GRADE 5 SAE GRADE 8
REGULAR NUTS SAE GRADE 5
HEX NUTS
SAE GRADE 8
HEX NUTS
GRADE B ONE CIRCUMFERENTIAL NOTCH
GRADE C TWO CIRCUMFERENTIAL NOTCHES
GRADE IDENTIFICATION
GRADE A NO MARKS
GRADE B THREE MARKS
GRADE C SIX MARKS
MARKS NEED NOT BE LOCATED
GRADE IDENTIFICATION
AT CORNERS
GRADE A NO MARKS
GRADE B LETTER B
GRADE C LETTER C
GRADE IDENTIFICATION
GRADE A NO NOTCHES
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