ANSI/ASME/ASTM Inch

T-head bolts (inch series)

Standard ASME B18.5-1990
Description 1 - 8 x 2.563 T-head bolt, Stainless steel, Natural finish
Part number ASME B18.5 - T-HB - NS 1 x L 2.563 - TL 2.25 - SS - NAT
Material Stainless steel, Natural finish
Product selection
Selector Nominal Size Basic Bolt Diameter (inch) E Max. - Body Diameter (inch) E Min. - Body Diameter (inch) A Max. - Head Length (inch) A Min. - Head Length (inch) B Max. - Head Width (inch) B Min. - Head Width (inch) H Max. - Head Height (inch) H Min. - Head Height (inch) K - Head Radius (inch) R Max. - Filet Radius (inch)
1 1/4 0.25 0.26 0.237 0.5 0.488 0.28 0.245 0.204 0.172 0.438 0.031
2 5/16 0.3125 0.324 0.298 0.625 0.609 0.342 0.307 0.267 0.233 0.5 0.031
3 3/8 0.375 0.388 0.36 0.75 0.731 0.405 0.368 0.331 0.295 0.625 0.031
4 7/16 0.4375 0.452 0.421 0.875 0.853 0.468 0.431 0.394 0.356 0.875 0.031
5 1/2 0.5 0.515 0.483 1 0.975 0.53 0.492 0.458 0.418 0.875 0.031
6 5/8 0.625 0.642 0.605 1.25 1.218 0.675 0.616 0.585 0.541 1.062 0.062
7 3/4 0.75 0.768 0.729 1.5 1.462 0.8 0.741 0.649 0.601 1.25 0.062
8 7/8 0.875 0.895 0.852 1.75 1.706 0.938 0.865 0.776 0.724 1.375 0.062
9 1 1 1.022 0.976 2 1.95 1.063 0.99 0.903 0.847 1.5 0.062
Nominal Size
Basic Bolt Diameter (inch)
E Max. - Body Diameter (inch)
E Min. - Body Diameter (inch)
A Max. - Head Length (inch)
A Min. - Head Length (inch)
B Max. - Head Width (inch)
B Min. - Head Width (inch)
H Max. - Head Height (inch)
H Min. - Head Height (inch)
K - Head Radius (inch)
R Max. - Filet Radius (inch)
Users Who Downloaded This Product Also Downloaded
Page