ASME B18.2.1 Hex Flange Screws



Dimensions of Hex Flange Screws
 
Thread Leng th, LT
Maximum Transition
Thread Length, Y
Ring T
Ring B
Nominal Size
or Basic
Product
Diameter
Body
Diameter, E
(See Para. 4.6)
Width Across Flats, F (See Para. 2.1.2)
Width Across Corners, G
Maximum
Flange
Diam., B
Minimum
Flange
Thickness,K
Maximum
Head
Height,
H
Maximum
Head
Height,
H 1
Maximum
Flange
Top
Radius,
R2
Minimum
Bearing
Diam., B 1
Maximum
Runout
of
Bearing
Surface
FIM
For Screws With L<=
6 in.
For Screws With L>
6 in.
Inside
Diameter
 
Inside
Diameter
Thickness
Max.
Min.
Basic
Max.
Min.
Max.
Min.
Basic
Basic
For Screws With L<=
6 in.
For Screws With L>
6 in.
+ 0.0000
- 0.0003
Minimum
Thickness
+ 0.0000
- 0.0003
+ 0.0000
- 0.0003
1/4
0.2500
0.2500
0.245
3/8
0.3750
0.367
0.433
0.409
0.56
0.04
0.28
0.17
0.015
0.48
0.01
0.75
1
0.4
0.65
0.438
0.5
0.4093
0.0514
5/16
0.3125
0.3125
0.3065
1/2
0.5000
0.489
0.577
0.548
0.68
0.05
0.32
0.21
0.019
0.6
0.011
0.875
1.125
0.417
0.667
0.582
0.5
0.5483
0.0643
3/8
0.3750
0.3750
0.369
9/16
0.5620
0.551
0.65
0.618
0.81
0.06
0.39
0.25
0.022
0.73
0.012
1
1.25
0.438
0.688
0.655
0.5
0.6183
0.0771
7/16
0.4375
0.4375
0.4305
5/8
0.6250
0.612
0.722
0.685
0.93
0.07
0.46
0.3
0.026
0.85
0.013
1.125
1.375
0.464
0.714
0.73
0.5
0.6853
0.09
1/2
0.5000
0.5000
0.493
3/4
0.7500
0.736
0.866
0.825
1.07
0.08
0.51
0.34
0.03
0.98
0.014
1.25
1.5
0.481
0.731
0.875
0.5
0.8253
0.1029
9/16
0.5625
0.5625
0.5545
13/16
0.8120
0.798
0.938
0.895
1.19
0.09
0.57
0.38
0.034
1.1
0.015
1.375
1.625
0.75
0.75
0.95
0.5
0.8953
0.1157
5/8
0.6250
0.6250
0.617
15/16
0.9375
0.922
1.083
1.034
1.33
0.1
0.62
0.42
0.038
1.23
0.017
1.5
1.75
0.773
0.773
1.075
0.5
1.0343
0.1286
3/4
0.7500
0.7500
0.741
1 1/8
1.1250
1.1
1.299
1.234
1.59
0.11
0.73
0.51
0.045
1.47
0.02
1.75
2
0.8
0.8
1.312
0.5
1.2343
0.1543

Tags: ASME B18.2.1 Hex Flange Screws

General Material:Stainless Steel,Nickel Alloy,Silicon Bronze,Aluminium Bronze,Brass,Naval Brass,Coppe,Copper-Nickel,Aluminum Alloy,Titanium,Alloy Steel,Such as C1008,C1018,C1022,C1035,C1045,40cr,SCM435,35crmoA,42crmoA,AISI4140SS304/A2-70,SS316/A4-80,SS310s,SS309,SS321,SS410,SS317,SS904L,17-4 PH/630,Duplex 2205,Duplex 31803,Nitronic 40,Nitronic 50,Nitronic 60,Nickel Alloy,Hastelloy C276,Inconel 600,Inconel 601,Inconel 625,Inconel 718,Inconel X750,Inconel 800H,Inconel 825,Monel 400,Monel 405,Monel K-500,MP35N,Nickel 200,Nickel 201,Waspaloy)C65500,C64200,C61400,C63000,C63200,C46200,H59,H62,H67,C46400,C11000,90/10 C70600,70/30 C71500,6061-T6,2024-T4,Ti-6Al-4V Grade 5,ASTM B348 Grade 2,ASTM B348 Grade 7,651/S63198
General Surface Finish:Blackoxide,Zinc,Dacromet 500/Dacromet 320,Non-electrolytically Deposited Zinc Flake,Hot-dip Galvanization,Phosphating,Passviation