SQUARE, HEX, HEAVY HEX, AND ASKEW HEAD BOLTS AND HEX, HEAVY HEX, HEX FLANGE, LOBED HEAD, AND LAG SCREWS (INCH SERIES)
American Society of Mechanical Engineers
Foreword
Committee Roster
Correspondence With the B18 Committee
1 Introduction
2 General Data for Both Bolts and Screws
3 Bolts
4 Screws
5 Lag Screws
Mandatory Appendix
I - Gage and Gaging Practices for External Lobed Head
Drive System
Nonmandatory Appendices
A - Formulas for Bolt and Screw Head Dimensions
B - Weight in Pounds of 100 Steel Hex Cap Screws for
Given Diameter/Length Combination
C - Countersunk Center Holes
D - Self-Locking Element and Drilled Head
Guidelines
Describes the dimensional requirements for nine product types of inch series bolts and screws recognized as American National Standard.
| Document Type | Standard |
| Status | Current |
| Publisher | American Society of Mechanical Engineers |
| Supersedes |
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