ASME B 18.6.3 (H3B-I/H3B-IA+T1A) - 2024 Undercut 82-deg Flat Countersunk Head Tapping Screws - Type AB (ABR)

Unit:

Thread Size
d

d	Nominal Size
PP
Socket No.
M₁	Ref.
M₂	Ref.
P	Type I	max
		min
	Type IA	max
		min
d_k	max
	min
k	Ref.
	Ref.
α	max
	min
L₀ ^④	Nominal
Y ^④	Fully Threaded	max
b ^④	Thread Length (Long screws)	min

0.0600	0.0730	0.0860
48	42	32
0	0	1
0.062	0.070	0.088
0.062	0.070	0.088
0.036	0.044	0.049
0.020	0.028	0.033
0.037	0.045	0.046
0.021	0.029	0.030
0.112	0.137	0.162
0.096	0.120	0.144
0.025	0.031	0.036
0.018	0.023	0.028
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,Where specifying nominal size in decimals, zeros preceding the decimal and in the fourth decimal place shall be omitted.
②,No extrusion of excess metal beyond the apex of the point resulting from thread rolling shall be permissible . A slight rounding or truncation of the point is desirable.
③,The width of flat at crest of thread shall not exceed 0.004 in. for sizes up to and including No. 8, and 0.006 in. for larger sizes.
④,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 846 - 2017

Cross Recessed Countersunk Head Tapping Screws
Suppliers(2)

GB /T 846 - 1985

Cross Recessed Countersunk Head Tapping Screws
Suppliers(2)

GB 846 - 1976

Cross recessed countersunk head self-tapping screws
Suppliers(2)

DIN 7982 - 1990

Cross recessed countersunk head tapping screws
Suppliers(2)

ISO 7050 - 2011

Cross Recessed Countersunk (Flat) Head Tapping Screws
Suppliers(1)

ISO 7050 - 1983

Cross recessed countersunk head tapping screws
Suppliers(1)

JIS B 1125 - 2015

Cross Recessed Trumpet Head Self Drilling Tapping Screw

JIS B 1125 - 2015

Flex. Purpose Drilling Tapping Screws

JIS B 1125 - 2003

cross recessed trumpet head self drilling tapping screw

JIS B 1125 - 2003

Cross recessed ribbed countersunk head tapping screws

JIS B 1122 (AAT2) - 1996

Cross Recessed Countersunk Head Tapping Screws - threaded portion are of class 1 to 4 [Annex attached table 2]

JIS B 1122 (AT2) - 1996

Cross recessed countersunk head tapping screws [Table 2]

JIS B 1125 - 1995

Cross recessed bugle head self-drilling tapping screws

Q 274

Cross recessed countersunk head tapping screws - Type C

Q 278

Cross recessed countersunk head tapping screws - Type F

ASME/ANSI B 18.6.3 - 2010

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

UNI 9709 - 1990

Two-thread countersunk (flat) head tapping screws with cross rocessed for plastics

UNI 6955

Cross-Recessed Flat Countersunk Head Tapping Screws

NF E 25-656 - 1994

Cross Recessed Countersunk (Flat) Head Tapping Screws

BS 4174 - 1972

Recess 80°countersunk Head Screws - Type Z [Table 9]

BS 4174 - 1972

Recess 80°Truncated Countersunk Head Screws - Type Z [Table 11]

AS /NZS 4407 - 1996

ISO metric cross recessed countersunk head tapping screws

SJ 2822 - 1987

SJ 2498 - 1984

KS B 1032 - 2016 (R2021)

Cross-Recessed Countersunk (Flat) Head Tapping Screws

KS B 1032 - 2001

Cross-Recessed Countersunk (Flat) Head Tapping Screws

YJT 4058 (WN1413C)

Cross recessed countersunk head Tapping screws [PT-K Thread]

DIN EN ISO 7050 - 2011

Cross Recessed Countersunk (Flat) Head Tapping Screws
Suppliers(2)

ASME B 18.6.3 (H1B-I/H1B-IA+T1A) - 2024

82° Cross Recessed Countersunk Head Tapping Screws - Type AB (ABR)

ASME B 18.6.3 (H4B-I/H4B-IA+T1A) - 2024

Flat Coutersunk Trim Head Tapping Screws - Type AB and ABR

ASME B 18.6.3 (T2-I/T2-IA+T40) - 2013

82° Cross Recessed Countersunk Head Tapping Screws - Type AB (ABR)

ASME B 18.6.3 (T10-I/T10-IA+T40) - 2013

Undercut 82-deg Flat Countersunk Head Tapping Screws - Type AB (ABR)

ASME B 18.6.3 (T14-I/T14-IA+T40) - 2013

Flat Coutersunk Trim Head Tapping Screws - Type AB and ABR

ASME B 18.6.5M (T10) - 2000 (R2010)

Metric Type IA Cross-Recessed Flat Countersunk Head Tapping Screws [Table 10]

ASME B 18.6.5M (T9) - 2000 (R2010)

Metric cross recessed countersunk head tapping screws [Table 9]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type A Thread Forming [Table 10]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 10]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 10]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 10]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed Flat Countersunk Head Tapping Screws - Type A Thread Forming [Table 11]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 11]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 11]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 11]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type A Thread Forming [Table 12]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 12]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 12]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 12]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 14]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 14]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 14]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 15]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 15]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 15]

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]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 16]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 16]

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]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 17]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 17]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 17]

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]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 18]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 18]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 18]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type B and BP Thread Forming [Table 19]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type C Thread Forming [Table 19]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type AB Thread Forming [Table 19]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed Flat Countersunk Trim Head Tapping Screws - Type A Thread Forming [Table 19]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table VI2]

ASME B 18.6.4 - 1998 (R2005)

Type I Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI2]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table VI3]

ASME B 18.6.4 - 1998 (R2005)

Type IA Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI3]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table VI4]

ASME B 18.6.4 - 1998 (R2005)

Type II Cross Recessed 100°Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI4]

T/SZJGJ 001 (C) - 2024

Cross Recessed Countersunk Head Tapping Screws