| Nominal Size or Basic Screw Diameter | Head Diameter |
Head Height | Protrusion Gage Diameter | Protrusion | Hexagon Socket Size | Key Engagement | Fillet Transition Diameter | Length, Overall | |||
| Theo. Sharp Max | Abs. Min | Ref | Max | Min | Max | Min | Nom | Min | Max | ||
| No. 8 (0.1640) | 0.359 | 0.311 | 0.112 | 0.267 | 0.266 | 0.051 | 0.039 | 3/32 (0.094) | 0.076 | 0.194 | 3/8 |
| SEE NOTES 1 | 3 | 4 | 5 | 5 | 18 | 13 | 6, 7, 8 | ||||
Reprinted from ASME/ANSI B18.3 by permission of The American Society of Mechanical Engineers. All rights reserved. For a full copy of the standards, contact the ASME at http://www.asme.org/codes/.
Safety Socket LLC.
6501 North Avondale Avenue
Chicago, IL 60631
(773)763-2020; Fax: (773)763-1610