ASME B 18.6.3 (H3C+T1A) - 2024 80° Slotted Undercut Oval Countersunk Head Tapping Screws - Type AB、ABR

Unit:

Thread Size
d

d	Nominal Size
PP
d_k	max
	min
k	Ref
f	Ref.
n	max
	min
t	max
	min
α	max
	min
L₀ ^①	Nominal
Y ^①	Fully Threaded	max
b ^①	Thread Length (Long screws)	min

0.0600	0.0730	0.0860
48	42	32
0.112	0.137	0.162
0.096	0.120	0.144
0.025	0.031	0.036
0.021	0.025	0.029
0.023	0.026	0.031
0.016	0.019	0.023
0.028	0.034	0.040
0.022	0.027	0.033
82°	82°	82°
80°	80°	80°
7/16	9/16	5/8
0.021	0.024	0.031
0.360	0.440	0.520

①,For screws of norminal lengths equal to or shorter than the nominal screw lengths, L0, listed in Table, the full-form threads shall extend close to the head such that the minor diamter limits of the specified thread are maintained to within Y daistance from the underside of the head, or closer if practicable. Screws of nominal lengths, L0, longer than those tabulated in table shall have a minimum length of full-form thread as shown in the "b Min" column of table, unless otherwise specified by the purchaser.

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

80°Slotted Raised Countersunk Head Tapping Screws [Table 12]

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 (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]