ASME B18 26:2019 pdf download.Fasteners for Use in Structural Applications.
1.1.1 ASME B18 26 covers the complete general and dimensional data for five products in the inch series recognized as an American National Standard. These five structural products include
(a) heavy hex structural bolts: ASTM F3125/F3125M
(b) heavy hex nuts: ASTM A563 and ASTM A194/A194M
(c) hardened steel washers — circular, circular clipped, and beveled: ASTM F436/F436M
(d) compressible washer-type direct tension indicators: ASTM F959/F959M
fr) twist-oil-type structural bolts — heavy hex and round: ASTM F3125/F3125M
1.1.2 The inclusion of dimensional data in this Standard is not intended to imply that all products described herein are stock production sizes. Consumers should consult with suppliers concerning lists of available stock production sizes.
1.2 Dimensions
All dimensions in this Standard are in inches, unless stated otherwise, and apply to an unpiated or uncoated product.
When plating or coating is specified, the finished product dimensions shall be as agreed upon between supplier and
purchaser. Symbols specifying geometric characteristics are in accord with ASME Y14.5.
1.3 Options
Options, where specified, shall be at the discretion of the supplier, unless otherwise agreed upon by the purchaser with the manufacturer or distributor.
1.4 TerminoLogy
For definitions of terms relating to fastener dimensional or component features used in this Standard, refer to ASME
1318.12.
1.5 Referenced Standards
Unless otherwise specified, the referenced Standard shall be the most recent issue at the time of order placement. The following is a list of publications referenced in this Standard:
ASME B1.1, Unified Inch Screw Threads (UN and UNR Thread Form) ASME 81.2, Gages and Gaging for Unified Inch Screw Threads
ASME B1.3, ScrewThread GagingSystems for Dimensional Acceptability— Inch and MetricScrewThreads (UN, UNR, UNI, M, and MJ)
ASME B 18.2.1, Square, Hex, Heavy Hex, and Askew head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch Series)
ASME B 18.2.2, Nuts for General Applications: Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series)
ASME B18.2.9, Straightness Gage and Gaging for Bolts and Screws
ASME B 18.12, Glossary of Terms for Mechanical Fasteners
ASME B18.18, Quality Assurance for Fasteners
ASME B18.24, Part Identifying Number (PIN) Code System Standard for B18 Fastener Products
ASME Y14.5, Dimensioning and Tolerancing
Publisher: The American Society of Mechanical Engineers (ASME), Two Park Avenue, New York, NY 10016-5990 (www.asme.org)
ASTM A194/A194M, Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
ASTM A563, Carbon and Alloy Steel Nuts.ASME B18 26 pdf download.