ASME/ANSI B 18.6.5M (T21) - 2000 (R2010) Hex head flange tapping screws [Table 21]

Unit: 毫米(mm)

Thread Size
d

ST2.2

ST2.9

ST3.5

P	Pitch
s	max
s	min
e	min
d_k	max
d_k	min
k	max
c	min
r	min
b	min
Type of Thread and Point

0.8	1	1.3
3	4	5
2.84	3.84	4.82
3.16	4.27	5.36
4.5	6.4	7.5
4.1	5.9	6.9
2.2	3.2	3.8
0.3	0.4	0.5
0.1	0.1	0.1
13	17	21
AB,B,BF,BT	AB,B,BF,BT	AB,B,BF,BT

①,The contour of the edge at the periphery of flange shall be optional provided the minimum flange thickness is maintained at the minimum flange diameter. The top surface of the flange may be straight or slightly rounded (convex) upward.
②,The comparable ISO standard is ISO 10509.

GB /T 16824.2 - 2016

Hexagon Flange Head Tapping Screws

GB /T 16824.2 - 1997

Hexagon head tapping screws with flange

GB /T 16824.1 - 2023

Hexagon Washer Head Tapping Screws

GB /T 16824.1 - 2016

Hexagon Washer Head Tapping Screws

GB /T 16824.1 - 1997

Hexagon head tapping screws with collar

IFI 502 - 1982

Metric Hex Flange Head Tapping Screws

DIN 6928 - 2008

Hexagon Washer Head Tapping Screws

DIN 6928 - 1990

Hexagon Washer Head Tapping Screws

ISO 7053 - 2019

Hexagon Washer Head Tapping Screws

ISO 7053 - 2011

Hexagon washer head tapping screws

ISO 7053 - 1992

Hexagon washer head tapping screws

ISO 10509 - 2012

Hexagon Flange Head Tapping Screws

ISO 10509 - 1992

Hexagon flange head tapping screws

JIS B 1123 (AAT3) - 1996

Hexagon Head Tapping Screws With Collar [Annex Attached Table 3]

JIS B 1126 - 1995

Hexagon Head Self-Tapping Screws With Collar

JIS B 1127 - 1995

Hexagon Head Self-Tapping Screws With Flange

Q 270

Hexagon flange head tapping screws

Q 279

Hexagon head tapping screws with collar

ASME/ANSI B 18.6.3 - 2010

Machine Screw and Tapping Screw Nuts (Inch Seires)

BS 7599 - 1992

Metric Hexagon Washer Head Tapping Screws

BS 7600 - 1992

Metric Hexagon Flange Head Tapping Screws

AS /NZS 4409 - 1996

ISO metric hexagon head tapping screws with washers

AS /NZS 4410 - 1996

ISO metric hexagon flange head tapping screws

KS B 1064 - 1997

Hexagon Flange Head Tapping Screws

YJT 1019 (FBS)

YJT 4064 (WN1447C)

Hexagon Washer Head Tapping Screws

DIN EN ISO 7053 - 2019

Hexagon Washer Head Tapping Screws

ASME B 18.6.3 (H10A+T1A) - 2024

Plain and Slotted Hex Washer Head Tapping Screws - Type AB and ABR

ASME B 18.6.3 (H10B-I+T1A) - 2024

Cross Recess Indented Hex Washer Head Tapping Screws - Type AB and ABR

ASME B 18.6.3 (H10B-VI+T1A) - 2024

Recess Indented Hex Washer Head Tapping Screws - Type AB and ABR

ASME B 18.6.3 (T32+T40) - 2013

Plain and Slotted Hex Washer Head Tapping Screws - Type AB and ABR

ASME B 18.6.3 (T33-I+T40) - 2013

Cross Recess Indented Hex Washer Head Tapping Screws - Type AB and ABR

ASME B 18.6.3 (T33-VI+T40) - 2013

Recess Indented Hex Washer Head Tapping Screws - Type AB and ABR