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Unit:mm

Two-thread Countersunk (Flat) Head Tapping Screws with Cross Rocessed for Plastics

UNI 9709 - 1990

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意大利UNI 9709 - 1990 UNI9709 9709UNI Two-thread Countersunk (Flat) Head Tapping Screws with Cross Rocessed for Plastics
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Thread Size
3 3.5 4 4.5 5 5.5 6 7
d max
min
d2 max
min
d3 max
min
d4 max
min
P
y max
y1 max
dk max
min
k ≈
r max
Socket No.
M2 ≈
Penetration depth max
min
M1 ≈
Penetration depth max
min
3.15 3.65 4.1 4.65 5.1 5.6 6.1 7.15
2.95 3.35 3.8 4.35 4.8 5.3 5.8 6.85
2.59 2.89 3.29 3.59 3.94 4.44 4.94 5.89
2.39 2.59 2.99 3.29 3.64 4.14 4.64 5.59
1.95 2.15 2.45 2.65 3 3.5 3.9 4.85
1.75 1.85 2.15 2.35 2.7 3.2 3.6 4.55
1.9 2 2.3 2.5 2.8 3.25 3.65 4.6
1.7 1.8 2.1 2.3 2.6 3.05 3.45 4.35
2.1 2.5 2.7 2.8 3 3 3.1 3.5
2.3 2.6 3 3.2 3.7 4.3 4.8 5.8
1.9 2.4 2.6 3 3.6 3.9 4 4.2
4.9 5.5 6.8 7.5 8.1 9.5 10.8 12.4
4.6 5.2 6.44 7.14 7.74 9.14 10.37 11.97
1.5 1.7 2.1 2.3 2.5 3 3.4 3.8
0.9 1.1 1.4 1.5 1.6 1.9 2.1 2.4
1 1 2 2 2 2 3 3
2.8 3 4.2 4.4 4.6 5 6.3 7
1.73 2.01 2.31 2.51 2.72 3.1 3.18 3.84
1.48 1.76 1.85 2.05 2.26 2.64 2.72 3.38
2.7 3 4.2 4.6 4.7 5.1 6.8 7.1
1.55 1.7 2.12 2.53 2.62 3.1 3.53 3.91
1.25 1.4 1.62 2.03 2.11 2.59 2.95 3.33
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ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 17]
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ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 11]
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38 Type I Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 14] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 14]
39 Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 11] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 11]
40 Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 15] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 15]
41 Type IA Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI3] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type IA Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI3]
42 Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 16] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 16]
43 Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 10] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 10]
44 Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 17] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 17]
45 Metric Cross Recessed Countersunk Head Tapping Screws [Table 9] [ASME]
ASME B 18.6.5M (T9) - 2000 (R2010) 		Metric Cross Recessed Countersunk Head Tapping Screws [Table 9]
46 Type IA Cross Recessed Flat Countersunk Head Tapping Screws - Type A Thread Forming [Table 11] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type IA Cross Recessed Flat Countersunk Head Tapping Screws - Type A Thread Forming [Table 11]
47 Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 17] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 17]
48 Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 17] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 17]
49 Type I Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI2] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type I Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI2]
50 82° Cross Recessed Countersunk Head Tapping Screws - Type AB (ABR) [ASME]
ASME B 18.6.3 (T2-I/T2-IA+T40) - 2013 		82° Cross Recessed Countersunk Head Tapping Screws - Type AB (ABR)
51 Type II Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 19] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type II Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 19]
52 Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 12] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 12]
53 Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 18] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 18]
54 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 (R2005) 		Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 18]
55 Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 16] [ASME]
ASME B 18.6.4 - 1998 (R2005) 		Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 16]
56 Cross-Recessed Flat Countersunk Head Tapping Screws [UNI]
UNI 6955 		Cross-Recessed Flat Countersunk Head Tapping Screws
57 Recess 80°countersunk Head Screws - Type Z [Table 9] [BS]
BS 4174 - 1972 		Recess 80°countersunk Head Screws - Type Z [Table 9]
58 Cross Recessed Countersunk (Flat) Head Tapping Screws [NF]
NF E 25-656 - 1994 		Cross Recessed Countersunk (Flat) Head Tapping Screws
59 Cross Recessed Countersunk Head Tapping Screws [Table 2] [JIS]
JIS B 1122 (AT2) - 1996 		Cross Recessed Countersunk Head Tapping Screws [Table 2]
60 Cross Recessed Bugle Head Self-drilling Tapping Screws [JIS]
JIS B 1125 - 1995 		Cross Recessed Bugle Head Self-drilling Tapping Screws
61 Recess 80°Truncated Countersunk Head Screws - Type Z [Table 11] [BS]
BS 4174 - 1972 		Recess 80°Truncated Countersunk Head Screws - Type Z [Table 11]
62 cross Recessed Trumpet Head Self Drilling Tapping Screw [JIS]
JIS B 1125 - 2003 		cross Recessed Trumpet Head Self Drilling Tapping Screw
63 Flex. Purpose Drilling Tapping Screws [JIS]
JIS B 1125 - 2015 		Flex. Purpose Drilling Tapping Screws
64 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]
65 Cross Recessed Trumpet Head Self Drilling Tapping Screw [JIS]
JIS B 1125 - 2015 		Cross Recessed Trumpet Head Self Drilling Tapping Screw
66 Cross Recessed Ribbed Countersunk Head Tapping Screws [JIS]
JIS B 1125 - 2003 		Cross Recessed Ribbed Countersunk Head Tapping Screws
67 ISO Metric Cross Recessed Countersunk Head Tapping Screws [AS]
AS /NZS 4407 - 1996 		ISO Metric Cross Recessed Countersunk Head Tapping Screws
68 Cross-Recessed Countersunk (Flat) Head Tapping Screws [KS]
KS B 1032 - 2016 (R2021) 		Cross-Recessed Countersunk (Flat) Head Tapping Screws
69 Cross-Recessed Countersunk (Flat) Head Tapping Screws [KS]
KS B 1032 - 2001 		Cross-Recessed Countersunk (Flat) Head Tapping Screws
70 Cross Recessed Countersunk Head Tapping Screws [YJT]
YJT 4058 (WN1413C) 		Cross Recessed Countersunk Head Tapping Screws