BS 4174 - 1972 80°Slotted Raised Countersunk Head Tapping Screws [Table 12]

Unit:

Size

d_k	（mm）	max
		min
k	（mm）	ref.
n	（mm）	max
		min
t	（mm）	Nominal Size
f	（mm）	Nominal Size
d_k	（in.）	max
		min
k	（in.）	ref.
n	（in.）	max
		min
t	（in.）	Nominal Size
f	（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
1.04	1.37	1.7
0.64	0.84	1.02
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
0.041	0.054	0.067
0.025	0.033	0.040

①,Edge of head may be rounded or flat.

GB /T 5284 - 2017

Slotted Raised Countersunk(Oval) Head Tapping Screws

GB /T 5284 - 1985

Slotted Raised Countersunk Head Tapping Screws

IFI 502 - 1982

Metric Slotted Oval Countersunk Head Tapping Screws

DIN 7973 - 1990

Slotted Raised Countersunk Head Tapping Screws
Suppliers(1)

ISO 1483 - 2011

Slotted Raised Countersunk (Oval) Head Tapping Screws

ISO 1483 - 1983

Slotted raised countersunk head tapping screws

JIS B 1115 (JA5) - 2015

Slotted Raised countersunk head tapping screws [Table JA5]

JIS B 1115 (T9) - 2015

Slotted Raised Countersunk Head Tapping Screws [Table 9]

JIS B 1115 (T3) - 1996

Slotted raised countersunk head tapping screws [Table 3]

JIS B 1115 (AT3) - 1996

Slotted Raised countersunk head tapping screws [Annex Table 3]

ASME/ANSI B 18.6.3 - 2010

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

NF E 25-661 - 1994

Slotted Raised Countersunk (Oval) Head Tapping Screws

BS 4174 - 1972

Cross Recess 80° Raised Countersunk Head Tapping Screws [Table 13]

BS 4174 - 1972

Slotted 80° truncated Raised Countersunk Head Screws [Table 14]

AS /NZS 4405 - 1996

ISO metric slotted raised countersunk head tapping screws

DIN EN ISO 1483 - 2011

Slotted Raised Countersunk (Oval) Head Tapping Screws
Suppliers(1)

ASME B 18.6.3 (H2A+T1A) - 2024

82° Dimensions of Slotted Oval Countersunk Head Tapping Screws

ASME B 18.6.3 (H3C+T1A) - 2024

80° Slotted Undercut Oval Countersunk Head Tapping Screws - Type AB、ABR

ASME B 18.6.3 (T7+T40) - 2013

82° Dimensions of Slotted Oval Countersunk Head Tapping Screws [Table 7]

ASME B 18.6.3 (T11t) - 2013

80° Slotted Undercut Oval Countersunk Head Tapping Screws [Table 11]

ASME B 18.6.5M (T12) - 2000 (R2010)

Metrice slotted raised countersunk head tapping screws [Table 12]

ASME B 18.6.4 - 1998

slotted Oval Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 20]

ASME B 18.6.4 - 1998

slotted Oval Countersunk Head Tapping Screws - Type C Thread Forming [Table 20]

ASME B 18.6.4 - 1998

slotted Oval Countersunk Head Tapping Screws - Type AB Thread Forming [Table 20]

ASME B 18.6.4 - 1998

slotted Oval Countersunk Head Tapping Screws - Type A Thread Forming [Table 20]