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Slotted 80° Truncated Countersunk Head Screws [Table 10]

BS 4174 - 1972

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英标BS 4174 - 1972 BS4174 4174BS Slotted 80° Truncated Countersunk Head Screws [Table 10]
Size
2# 4# 6# 8# 10# 12# 14# 16#
dk (mm) max
min
k (mm) max
min
n (mm) max
min
t (mm) Nominal Size
dk (in.) max
min
k (in.) max
min
n (in.) max
min
t (in.) Nominal Size
4.37 5.71 7.09 8.43 9.78 11.13 12.88 16.13
3.73 4.95 6.2 7.42 8.64 9.88 11.48 14.43
0.91 1.19 1.5 1.78 2.06 2.34 2.72 3.4
0.71 0.96 1.22 1.47 1.73 1.98 2.34 2.95
0.79 0.99 1.22 1.37 1.52 1.7 1.9 2.13
0.58 0.79 0.99 1.14 1.27 1.42 1.63 1.83
0.36 0.46 0.56 0.68 0.79 0.91 1.04 1.32
0.172 0.225 0.279 0.332 0.385 0.438 0.507 0.635
0.147 0.195 0.244 0.292 0.340 0.389 0.452 0.568
0.036 0.047 0.059 0.070 0.081 0.092 0.107 0.134
0.028 0.038 0.048 0.058 0.068 0.078 0.092 0.116
0.031 0.039 0.048 0.054 0.060 0.067 0.075 0.084
0.023 0.031 0.039 0.045 0.050 0.056 0.064 0.072
0.014 0.018 0.022 0.027 0.031 0.036 0.041 0.052
①,Edge of head may be rounded or flat.

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