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GOST 17473 - 1980 Half-rounded head screws, product grades A and B


Unit: 毫米(mm)
Weight Calculator
L
Thread Size
d
1 1.2 1.4
P pitch Coarse thread
Fine thread
D
k
R1
Socket No.
m
t max
Penetration depth groove depth max
min
b Lengthening
standard
0.25 0.25 0.3
/ / /
2 2.3 2.6
0.7 0.8 0.95
1.1 1.3 1.4
/ / /
/ / /
/ / /
/ / /
/ / /
/ / /
8 9 9
per 1000 units ≈ kg(7.85kg/cm3)
- - -
①,It is allowed to produce screws with the lengths not specified in Table 2 by agreement between the customer and the manufacturer.
②,Thread shall be in accordance with GOST 24705-81. Thread runout and undercut shall be in accordance with GOST 10549-80.
③,Straight slots shall be in accordance with GOST 24669-81; Phillips slots shall be in accordance with GOST 10753-80.
④,Under-head radius shall be in accordance with GOST 24670-81.
⑤,Tolerances, methods of monitoring the dimensions and deviations of surfaces form and arrangement shall be in accordance with GOST 1759.1-82.
⑥,Surface defects and monitoring methods shall be in accordance with GOST 1759.2-82.
⑦,Technical requirements shall be in accordance with GOST 1759-70.

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