Machinery's Handbook, 31st Edition
1926 WING NUTS, WING SCREWS AND THUMB SCREWS Type B: Type B wing nuts are hot forged solid nuts available in two wing styles: Style 1, having wings of moderate height; and Style 2, having high wings. Dimensions are given in Table 2. Table 2. American National Standard Type B Wing Nuts ANSI/ASME B18.17-1968 (Withdrawn)
B
E C
B
E C
G
G
A D
A D
STYLE 2
STYLE 1
A
B
C
D
E
G
Nominal Size or Basic Major Diameter of Thread a 5 (0.1250) 10 (0.1900) 1 ∕ 4 (0.2500) 5 ∕ 16 (0.3125) 3 ∕ 8 (0.3750) 7 ∕ 16 (0.4375) 1 ∕ 2 (0.5000) 9 ∕ 16 (0.5625) 5 ∕ 8 (0.6250) 3 ∕ 4 (0.7500) 5 (0.1250) 10 (0.1900) 1 ∕ 4 (0.2500) 5 ∕ 16 (0.3125) 3 ∕ 8 (0.3750) 7 ∕ 16 (0.4375) 1 ∕ 2 (0.5000) 9 ∕ 16 (0.5625) 5 ∕ 8 (0.6250) 3 ∕ 4 (0.7500)
Wing Spread Boss Height Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Type B, Style 1 Wing Height Wing Thick. Between Wings Boss Dia.
Thds. per Inch
40 0.78 0.72 0.36 0.30 0.13 0.10 0.28 0.22 0.31 0.28 0.22 0.16 24 0.97 0.91 0.45 0.39 0.15 0.12 0.34 0.28 0.39 0.36 0.28 0.22 20 1.16 1.09 0.56 0.50 0.17 0.14 0.41 0.34 0.47 0.44 0.34 0.28 18 1.44 1.38 0.67 0.61 0.18 0.15 0.50 0.44 0.55 0.52 0.41 0.34 16 1.72 1.66 0.80 0.73 0.20 0.17 0.59 0.53 0.63 0.60 0.47 0.41 14 2.00 1.94 0.91 0.84 0.21 0.18 0.69 0.62 0.71 0.68 0.53 0.47 13 2.31 2.22 1.06 0.94 0.23 0.20 0.78 0.69 0.79 0.76 0.62 0.50 12 2.59 2.47 1.17 1.05 0.25 0.21 0.88 0.78 0.88 0.84 0.69 0.56 11 2.84 2.72 1.31 1.19 0.27 0.23 0.94 0.84 0.96 0.92 0.75 0.62 10 3.31 3.19 1.52 1.39 0.29 0.25 1.10 1.00 1.12 1.08 0.88 0.75 Type B, Style 2 40 0.81 0.75 0.62 0.56 0.12 0.09 0.28 0.22 0.31 0.28 0.22 0.16 24 1.01 0.95 0.78 0.72 0.14 0.11 0.35 0.29 0.39 0.36 0.28 0.22 20 1.22 1.16 0.94 0.88 0.16 0.13 0.41 0.35 0.47 0.44 0.34 0.28 18 1.43 1.37 1.09 1.03 0.17 0.14 0.48 0.42 0.55 0.52 0.41 0.34 16 1.63 1.57 1.25 1.19 0.18 0.15 0.55 0.49 0.63 0.60 0.47 0.41 14 1.90 1.84 1.42. 1.36 0.19 0.16 0.62 0.56 0.71 0.68 0.53 0.47 13 2.13 2.04 1.58 1.45 0.20 0.17 0.69 0.60 0.79 0.76 0.62 0.50 12 2.40 2.28 1.75 1.62 0.22 0.18 0.76 0.67 0.88 0.84 0.69 0.56 11 2.60 2.48 1.91 1.78 0.23 0.19 0.83 0.74 0.96 0.92 0.75 0.62
10 3.02 2.90 2.22 2.09 0.24 0.20 0.97 0.88 1.12 1.08 0.88 0.75 a Where specifying nominal size in decimals, zeros in the fourth decimal place are omitted. All dimensions in inches.
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