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Cross Recess 80° Raised Countersunk Head Tapping Screws [Table 13]

BS 4174 - 1972

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英标BS 4174 - 1972 BS4174 4174BS Cross Recess 80° Raised Countersunk Head Tapping Screws  [Table 13]
Size
2# 4# 6# 8# 10# 12# 14# 16#
dk (mm) max
min
k (mm) ref.
f (mm) Nominal Size
t (mm) max
min
M (mm) Nominal Size
Socket No.
dk (in.) max
min
k (in.) ref.
f (in.) Nominal Size
t (in.) max
min
M (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
1.3 1.7 2.11 2.54 2.95 3.35 3.89 4.85
0.64 0.84 1.02 1.22 1.4 1.6 1.83 2.29
1.62 2.34 2.74 3.12 3.56 3.94 4.47 5.87
1.22 1.93 2.29 2.67 3.1 3.48 4.03 5.41
2.41 3.12 4.29 4.65 5.08 6.63 7.11 9.47
1 1 2 2 2 3 3 4
0.172 0.225 0.279 0.332 0.385 0.438 0.507 0.635
0.147 0.195 0.244 0.292 0.34 0.389 0.452 0.568
0.051 0.067 0.083 0.1 0.116 0.132 0.153 0.191
0.025 0.033 0.04 0.048 0.055 0.063 0.072 0.09
0.064 0.092 0.108 0.123 0.140 0.155 0.176 0.231
0.048 0.076 0.090 0.105 0.122 0.137 0.158 0.213
0.095 0.123 0.169 0.183 0.200 0.261 0.280 0.373

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