B18.2.1 - Square and Hex Bolts and Screws, Inch Series
Description:
This Standard covers the complete general and dimensional data for eight
product types of inch series square and hex bolts and screws Also included are
appendixes covering thread runout sleeve gages, gaging procedure for checking
bolt and screw straightness, grade markings for steel 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. It should be understood,
however, that 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 ANSI B18.2.1, are now covered in ASME
B18.2.6.
See ANSI /
ASME Hardware Chart and Guide
Category: ASME Engineering Standards Specifications
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