Dimensions of Round Head Short Square Neck Bolts (Inch)
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Nominal Size
or Basic Bolt Diameter [Note (1)] |
Body Diameter, E
|
Head Diameter, A
|
Head Height, H
|
Square
Width, O |
Square
Depth, P |
Maximum
Corner Radius on Square, Q |
Maximum Fillet
Radius, R [Note (2)] |
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Max.
|
Min.
|
Max.
|
Min.
|
Max.
|
Min.
|
Max.
|
Min.
|
Max.
|
Min.
|
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No. 10
|
0.19
|
0.199
|
0.159
|
0.469
|
0.436
|
0.114
|
0.094
|
0.199
|
0.185
|
0.125
|
0.094
|
0.031
|
0.031
|
1/4
|
0.25
|
0.26
|
0.213
|
0.594
|
0.563
|
0.145
|
0.125
|
0.26
|
0.245
|
0.124
|
0.093
|
0.031
|
0.031
|
5/16
|
0.3125
|
0.324
|
0.272
|
0.719
|
0.688
|
0.176
|
0.156
|
0.324
|
0.307
|
0.124
|
0.093
|
0.031
|
0.031
|
3/8
|
0.375
|
0.388
|
0.329
|
0.844
|
0.782
|
0.208
|
0.188
|
0.388
|
0.368
|
0.156
|
0.125
|
0.047
|
0.031
|
7/16
|
0.4375
|
0.452
|
0.385
|
0.969
|
0.907
|
0.239
|
0.219
|
0.452
|
0.431
|
0.156
|
0.125
|
0.047
|
0.031
|
1/2
|
0.5
|
0.515
|
0.444
|
1.094
|
1.032
|
0.27
|
0.25
|
0.515
|
0.492
|
0.156
|
0.125
|
0.047
|
0.031
|
5/8
|
0.625
|
0.642
|
0.559
|
1.344
|
1.219
|
0.344
|
0.313
|
0.642
|
0.616
|
0.218
|
0.187
|
0.078
|
0.062
|
3/4
|
0.75
|
0.768
|
0.678
|
1.594
|
1.469
|
0.406
|
0.375
|
0.768
|
0.741
|
0.218
|
0.187
|
0.078
|
0.062
|
Tags: ASME B18.5 Round Head Short Square Neck Bolts
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
General Surface Finish:Blackoxide,Zinc,Dacromet 500/Dacromet 320,Non-electrolytically Deposited Zinc Flake,Hot-dip Galvanization,Phosphating,Passviation