GB /T 847 - 2017Cross Recessed Raised Countersunk(Oval) Head Tapping Screws

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GB /T 847 - 2017

Unit: mm

GB /T 847 - 2017 Cross Recessed Raised Countersunk(Oval) Head Tapping Screws

Unit: mm

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GB847_ST2.2X4.5

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GB /T 847 - 2017 Cross Recessed Raised Countersunk(Oval) Head Tapping Screws

Thread Size
d

ST2.2

P		Pitch
a		max
d_k		Theoretical	max
		Actual	max
			min
f		≈
k		max
Socket No.
M₁		Type H	Ref.
Penetration depth		Type H	max
			min
M₂		Type Z	Ref.
Penetration depth		Type Z	max
			min
y		Ref.	Type C
			Type F
			Type R

0.8
1.6
4.4
3.8
3.5
0.5
1.1
0
1.9
1.2
0.9
2
1.2
0.95
2
1.6
-

thousand-piece steel weight≈kg

0.1