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Unit:mm

Cross recessed countersunk head tapping screws [Table 2]

JIS B 1122 (AT2) - 1996

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日标JIS B1122 (AT2) - 1996 JIS1122 1122JIS Cross recessed countersunk head tapping screws [Table 2]
日标JIS B1122 (AT2) - 1996 JIS1122 1122JIS Cross recessed countersunk head tapping screws [Table 2]
Thread Size
d
ST2.2 ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3 ST8 ST9.5
P Pitch
a max
dk theoretical value
max
min
k max
Socket No.
M1 Type H Ref.
Penetration depth Type H min
max
M2 Type Z Ref.
Penetration depth Type Z min
max
y Ref. Type C
Type F
0.8 1.1 1.3 1.4 1.6 1.8 1.8 2.1 2.1
0.8 1.1 1.3 1.4 1.6 1.8 1.8 2.1 2.1
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
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 10.0
0.9 1.7 1.9 2.1 2.7 2.8 3.0 4.0 5.1
1.2 2.1 2.4 2.6 3.2 3.3 3.5 4.6 5.7
2.0 3.0 4.1 4.4 4.9 6.3 6.6 8.8 9.8
0.95 1.76 1.75 2.06 2.6 2.73 3.0 4.15 5.19
1.20 2.01 2.2 2.51 3.05 3.18 3.45 4.6 5.64
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
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ASME B 18.6.4 - 1998 		Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 12]
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ASME B 18.6.4 - 1998 		Type I Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI2]
33 Type II Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI4] [ASME]
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ASME B 18.6.4 - 1998 		Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 18]
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39 Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 17] [ASME]
ASME B 18.6.4 - 1998 		Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 17]
40 Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 16] [ASME]
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ASME/ANSI B 18.6.3 - 2010 		80° Machine Screw and Tapping Screw Nuts (Inch Seires)
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43 Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 18] [ASME]
ASME B 18.6.4 - 1998 		Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 18]
44 Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 16] [ASME]
ASME B 18.6.4 - 1998 		Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 16]
45 Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 15] [ASME]
ASME B 18.6.4 - 1998 		Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 15]
46 Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 10] [ASME]
ASME B 18.6.4 - 1998 		Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 10]
47 Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 15] [ASME]
ASME B 18.6.4 - 1998 		Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 15]
48 Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type A Thread Forming [Table 12] [ASME]
ASME B 18.6.4 - 1998 		Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type A Thread Forming [Table 12]
49 Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 11] [ASME]
ASME B 18.6.4 - 1998 		Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 11]
50 Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 12] [ASME]
ASME B 18.6.4 - 1998 		Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 12]
51 Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 18] [ASME]
ASME B 18.6.4 - 1998 		Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 18]
52 Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 17] [ASME]
ASME B 18.6.4 - 1998 		Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 17]
53 Recess 80°Truncated Countersunk Head Screws - Type Z [Table 11] [BS]
BS 4174 - 1972 		Recess 80°Truncated Countersunk Head Screws - Type Z [Table 11]
54 cross recessed trumpet head self drilling tapping screw [JIS]
JIS B 1125 - 2003 		cross recessed trumpet head self drilling tapping screw
55 Cross-Recessed Flat Countersunk Head Tapping Screws [UNI]
UNI 6955 		Cross-Recessed Flat Countersunk Head Tapping Screws
56 Cross Recessed Trumpet Head Self Drilling Tapping Screw [JIS]
JIS B 1125 - 2015 		Cross Recessed Trumpet Head Self Drilling Tapping Screw
57 Countersunk head tapping screws [JIS]
JIS B 1115 (F) - 1995 		Countersunk head tapping screws
58 Recess 80°countersunk Head Screws - Type Z [Table 9] [BS]
BS 4174 - 1972 		Recess 80°countersunk Head Screws - Type Z [Table 9]
59 Cross Recessed Countersunk (Flat) Head Tapping Screws [NF]
NF E 25-656 - 1994 		Cross Recessed Countersunk (Flat) Head Tapping Screws
60 Cross recessed bugle head self-drilling tapping screws [JIS]
JIS B 1125 - 1995 		Cross recessed bugle head self-drilling tapping screws
61 Flex. Purpose Drilling Tapping Screws [JIS]
JIS B 1125 - 2015 		Flex. Purpose Drilling Tapping Screws
62 Cross Recessed Countersunk Head Tapping Screws - threaded portion are of class 1 to 4 [Annex attached table 2] [JIS]
JIS B 1122 (AAT2) - 1996 		Cross Recessed Countersunk Head Tapping Screws - threaded portion are of class 1 to 4 [Annex attached table 2]
63 Two-thread countersunk (flat) head tapping screws with cross rocessed for plastics [UNI]
UNI 9709 - 1990 		Two-thread countersunk (flat) head tapping screws with cross rocessed for plastics
64 Cross recessed ribbed countersunk head tapping screws [JIS]
JIS B 1125 - 2003 		Cross recessed ribbed countersunk head tapping screws
65 ISO metric cross recessed countersunk head tapping screws [AS]
AS /NZS 4407 - 1996 		ISO metric cross recessed countersunk head tapping screws
66 Cross-Recessed Countersunk (Flat) Head Tapping Screws [KS]
KS B 1032 - 2016 (R2021) 		Cross-Recessed Countersunk (Flat) Head Tapping Screws
67 Cross-Recessed Countersunk (Flat) Head Tapping Screws [KS]
KS B 1032 - 2001 		Cross-Recessed Countersunk (Flat) Head Tapping Screws
68 Cross recessed countersunk head Tapping screws [PT-K Thread] [YJT]
YJT 4058 (WN1413C) 		Cross recessed countersunk head Tapping screws [PT-K Thread]