BS 4174 - 1972 Slotted 80°countersunk Head Self-Tapping Screws [Table 8]

Unit:

Thread Size
d

d_k	（mm）	max
		min
k	（mm）	ref.
n	（mm）	max
		min
t	（mm）	Nominal Size
d_k	（in.）	max
		min
k	（in.）	ref.
n	（in.）	max
		min
t	（in.）	Nominal Size

4.37	5.71	7.09
3.73	4.95	6.2
1.3	1.7	2.11
0.79	0.99	1.22
0.58	0.79	0.99
0.48	0.63	0.79
0.172	0.225	0.279
0.147	0.195	0.244
0.051	0.067	0.083
0.031	0.039	0.048
0.023	0.031	0.039
0.019	0.025	0.031

①,The a bove dimensions are for uncoated screws and may be exceeded after coating.

GB /T 5283 - 2017

Slotted Countersunk（Flat）Head Tapping Screws

GB /T 5283 - 1985

Slotted Countersunk Head Tapping Screws

IFI 502 - 1982

Metric Slotted Countersunk Head Tapping Screws

DIN 7972 - 1990

Slotted countersunkhead tapping screws
Suppliers(1)

ISO 1482 - 2011

Slotted Countersunk (Flat) Head Tapping Screws

ISO 1482 - 1983

Slotted countersunk head tapping screws

JIS B 1115 (JA4) - 2015

Slotted Countersunk head tapping screws [Table JA3]

JIS B 1115 (T6) - 2015

Slotted Countersunk Head Tapping Screws [Table 6]

JIS B 1115 (T2) - 1996

Slotted countersunk head tapping screws [Table 2]

JIS B 1115 (AT2) - 1996

Slotted Countersunk head tapping screws [Annex Table 2]

ASME/ANSI B 18.6.3 - 2010

80° Machine Screw and Tapping Screw Nuts (Inch Seires)

NF E 25-660 - 1994

Slotted Countersunk Head Tapping Screws

BS 4174 - 1972

Slotted 80° Truncated Countersunk Head Screws [Table 10]

AS /NZS 4404 - 1996

ISO metric slotted countersunk head tapping screws

CNS 4303 - 2000

Slotted Countersunk Head Tapping Screws

DIN EN ISO 1482 - 2011

Slotted Countersunkhead Tapping Screws
Suppliers(1)

ASME B 18.6.3 (H1A+T1A) - 2024

82° Slotted Flat Coutersunk Head Tapping Screws - Type AB (ABR)

ASME B 18.6.3 (H3A+T1A) - 2024

82° Slotted Undercut 82-deg Flat Countersunk Head Tapping Screws

ASME B 18.6.3 (T1+T40) - 2013

82° Slotted Flat Coutersunk Head Tapping Screws - Type AB (ABR) [Table 1+Table 40]

ASME B 18.6.3 (T9+T40) - 2013

82° Slotted Undercut 82-deg Flat Countersunk Head Tapping Screws [Table 9]

ASME B 18.6.5M (T8) - 2000 (R2010)

Metric slotted countersunk head tapping screws [Table 8]

ASME B 18.6.4 - 1998

Slotted Flat Countersunk Head Tapping Screws - Type A

ASME B 18.6.4 - 1998

Slotted Flat Countersunk Head Tapping Screws - Type B and BP

ASME B 18.6.4 - 1998

Slotted Flat Countersunk Head Tapping Screws - Type C

ASME B 18.6.4 - 1998

Slotted Flat Countersunk Head Tapping Screws - Type AB

ASME B 18.6.4 - 1998

Slotted Undercut Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 13]

ASME B 18.6.4 - 1998

Slotted Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 13]

ASME B 18.6.4 - 1998

Slotted Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 13]

ASME B 18.6.4 - 1998

Slotted 100° Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table VI1]

ASME B 18.6.4 - 1998

Slotted 100° Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI1]