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


Unit: mm
国标GB /T847 - 2017 GB847 847GB Cross Recessed Raised Countersunk(Oval) Head Tapping Screws
国标GB /T847 - 2017 GB847 847GB Cross Recessed Raised Countersunk(Oval) Head Tapping Screws
Screw Thread
d
ST2.2 ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3 ST8 ST9.5
P Pitch
a max
dk 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 1.1 1.3 1.4 1.6 1.8 1.8 2.1 2.1
1.6 2.2 2.6 2.8 3.2 3.6 3.6 4.2 4.2
4.4 6.3 8.2 9.4 10.4 11.5 12.6 17.3 20
3.8 5.5 7.3 8.4 9.3 10.3 11.3 15.8 18.3
3.5 5.2 6.9 8 8.9 9.9 10.9 15.4 17.8
0.5 0.7 0.8 1 1.2 1.3 1.4 2 2.3
1.1 1.7 2.35 2.6 2.8 3 3.15 4.65 5.25
0 1 2 2 2 3 3 4 4
1.9 3.2 4.4 4.6 5.2 6.6 6.8 8.9 10
1.2 2.1 2.4 2.6 3.2 3.3 3.5 4.6 5.7
0.9 1.7 1.9 2.1 2.7 2.8 3 4 5.1
2 3 4.1 4.4 4.9 6.3 6.6 8.8 9.8
1.2 2.01 2.2 2.51 3.05 3.18 3.45 4.6 5.64
0.95 1.76 1.75 2.06 2.6 2.73 3 4.15 5.19
2 2.6 3.2 3.7 4.3 5 6 7.5 8
1.6 2.1 2.5 2.8 3.2 3.6 3.6 4.2 4.2
- - 2.7 3.2 3.6 4.3 5 6.3 -
Alternative history
GB /T 847 - 1985 GB /T 847 - 2017
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China Mainland Suzhou Yongchuang Fastener Factory
Mr. Tang
Mobile Phone: +86-15298892886 Telephone: +86-512-66700967
Material: stainless steel, carbon steel; Nominal diameter: M1-M14; Nominal length: 5-400mm
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37 II型十字槽半沉头清根自攻螺钉 B,BP型末端 [Table 27] [ASME]
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38 II型十字槽半沉头清根自攻螺钉 C型末端 [Table 27] [ASME]
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39 II型十字槽半沉头清根自攻螺钉 AB型末端 [Table 27] [ASME]
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41 I型十字槽半沉头精整自攻螺钉 C型末端 [Table 28] [ASME]
ASME B 18.6.4 - 1998		 Type I Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 28]
42 I型十字槽半沉头精整自攻螺钉 AB型末端 [Table 28] [ASME]
ASME B 18.6.4 - 1998		 Type I Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 28]
43 I型十字槽半沉头精整自攻螺钉 A型末端 [Table 28] [ASME]
ASME B 18.6.4 - 1998		 Type I Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 28]
44 IA型米字槽半沉头精整自攻螺钉 B,BP型末端 [Table 29] [ASME]
ASME B 18.6.4 - 1998		 Type IA Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 29]
45 IA型米字槽半沉头精整自攻螺钉 C型末端 [Table 29] [ASME]
ASME B 18.6.4 - 1998		 Type IA Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 29]
46 IA型米字槽半沉头精整自攻螺钉 AB型末端 [Table 29] [ASME]
ASME B 18.6.4 - 1998		 Type IA Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 29]
47 IA型米字槽半沉头精整自攻螺钉A型末端 [Table 29] [ASME]
ASME B 18.6.4 - 1998		 Type IA Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 29]
48 II型十字槽半沉头精整自攻螺钉 B,BP型末端 [Table 30] [ASME]
ASME B 18.6.4 - 1998		 Type II Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 30]
49 II型十字槽半沉头精整自攻螺钉 C型末端 [Table 30] [ASME]
ASME B 18.6.4 - 1998		 Type II Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 30]
50 II型十字槽半沉头精整自攻螺钉 AB型末端 [Table 30] [ASME]
ASME B 18.6.4 - 1998		 Type II Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 30]
51 II型十字槽半沉头精整自攻螺钉 A型末端 [Table 30] [ASME]
ASME B 18.6.4 - 1998		 Type II Cross Recessed Oval Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 30]
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