BS 450 - 1958 Recessed 90°Raised - Countersunk Head Screws


Unit: inch
英标BS 450 - 1958 BS450 450BS Recessed 90°Raised - Countersunk Head Screws
Screw Thread
d
1/8 3/16 7/32 1/4 5/16 3/8
PP BSW
BSF
dk max
min
k max
Socket No.
40 24 / 20 18 16
/ 32 28 26 22 20
0.219 0.328 0.383 0.438 0.547 0.656
0.201 0.307 0.36 0.412 0.518 0.624
0.056 0.084 0.098 0.113 0.141 0.169
1 2 2 3 4 4
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