Document ID:	ASME-B18.2.1       Scroll down to access document images

Overview

Title:  Square, Hex, Heavy Hex and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (inch Series) Scope:  This Standard covers the dimensional requirements for nine product types of inch series bolts and screws recognized as American National Standard. Also included are appendices covering gaging procedures, grade markings for bolts and screws, formulas on which dimensional data are based, and a specification to assist in identifying a product as being a screw or a bolt. Where questions arise concerning acceptance of product, the dimensions in the tables shall govern over recalculation by formula. Heavy hex structural bolts, formerly covered in ASME B18.2.1, are now covered in ASME B18.2.6. Status:  Active Adoption Date:  20-AUG-2020         Next Review Due:  29-SEP-2030 FSC/Area:  53GP Doc Category:   American Society of Mechanical Engineers (ASME)   Reaffirmation Date:  01-OCT-2020

Responsibilities

Lead Standardization Activity:  GS  DLA Aviation - Richmond     Adopting Activity: GS5  DLA Aviation - Richmond Coordination:  Full   Army Custodian:  AR   US Army Combat Capabilities Development Command, Armaments Center   Navy Custodian:  YD   Naval Facilities Engineering Command   DLA Custodian:  GS   DLA Aviation - Richmond

Revision History

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