G-9
F2880, F3680, RCK72-F36, RCK72R-F36, RCK60-F36, RCK60R-F36, WSM
G GENERAL
[3] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC OR
UNF THREADS
W1022485
[4] PLUGS
0000001666E
Grade
SAE GR.5 SAE GR.8
Unit
Nominal Diameter
N·m kgf·m ft-lbs N·m kgf·m ft-lbs
5/16 23.1 to 27.8 2.35 to 2.84 17.0 to 20.5 32.5 to 39.3 3.31 to 4.01 24.0 to 29.0
3/8 47.5 to 57.0 4.84 to 5.82 35.0 to 42.0 61.0 to 73.2 6.22 to 7.47 45.0 to 54.0
1/2 108.5 to 130.2 11.07 to 13.29 80.0 to 96.0 149.2 to 179.0 15.22 to 18.27 110.0 to 132.0
9/16 149.2 to 179.0 15.22 to 18.27 110.0 to 132.0 217.0 to 260.4 22.14 to 26.57 160.0 to 192.0
5/8 203.4 to 244.1 20.75 to 24.91 150.0 to 180.0 298.3 to 358.0 30.44 to 36.53 220.0 to 264.0
Shape Size
Material of opponent part
Ordinariness Aluminum
N·m kgf·m ft-lbs N·m kgf·m ft-lbs
Tapered
screw
R1/8 13 to 22 1.3 to 2.2 9.6 to 16.2 10 to 12 1.0 to 1.2 7.4 to 8.9
R1/4 29 to 44 3.0 to 4.5 21.4 to 32.5 20 to 29 2.0 to 3.0 14.8 to 21.4
Straight
screw
G1/4 29 to 39 3.0 to 4.0 21.4 to 28.8 – – –
G3/8 49 to 59 5.0 to 6.0 36.1 to 43.5 – – –
G1/2 59 to 78 6.0 to 8.0 43.5 to 57.5 – – –