ASME B18.16.6-2017
Prevailing Torque Locknuts (Inch Series)

Standard No.

ASME B18.16.6-2017

Release Date

2017

Published By

American Society of Mechanical Engineers (ASME)

Status

Be replaced 2017-01

Replace By

ASME B18.16.6-2017(R2022)

Latest

ASME B18.16.6-2017(R2022)

Replace

ASME B18.16.6:2014

Scope

This Standard covers the complete general, dimensional, mechanical, and performance requirements (proof load, prevailing torque, and torque-tension) for carbon steel, inch series nylon insert locknuts of grades N2, N5, and N8 in styles NE (1⁄4 in. to 11⁄2 in.), NTE (1⁄4 in. to 11⁄2 in.), NU (1⁄4 in. to 3 in.), NTU (1⁄4 in. to 3 in.), NM (#2 to #12), NTM (#2 to #12), and hex flange (1⁄4 in. to 3⁄4 in.). This Standard also includes all-metal hex (#4 to 11⁄2 in.) and hex flange (1⁄4 in. to 3⁄4 in.) locking nuts of grades A, B, C, F, and G. These nut designs are designated as American National Standards. 本标准涵盖了碳钢、英制系列尼龙嵌件防松螺母 N2、N5 和 N8 型号 NE（1⁄4 英寸至 11⁄2 英寸）、NTE（1⁄4 英寸至 11⁄2 英寸）、NU（1⁄4 英寸至 3 英寸）的完整一般、尺寸、机械和性能要求（证明载荷、主要扭矩和扭矩张力）， NTU（1⁄4 英寸至 3 英寸）、NM（#2 至 #12）、NTM（#2 至 #12）和六角法兰（1⁄4 英寸至 3⁄4 英寸）。本标准还包括 A、B、C、F 和 G 等级的全金属六角（#4 至 11⁄2 英寸）和六角法兰（1⁄4 英寸至 3⁄4 英寸）锁紧螺母。这些螺母设计被指定为美国国家标准。

ASME B18.16.6-2017 Referenced Document

• ASME B1.1 Unified Inch Screw Threads (UN, UNR, and UNJ Thread Forms)*， 2020-06-30 Update
• ASME B1.15 Unified Inch Screw Threads (UNJ Thread Form)
• ASME B1.3 
• ASME B18.12 Glossary of Terms for Mechanical Fasteners
• ASME B18.18 Quality Assurance for Fasteners*， 2024-04-22 Update
• ASME B18.2.1 Square@ Hex@ Heavy Hex@ and Askew Head Bolts and Hex@ Heavy Hex@ Hex Flange@ Lobed Head@ and Lag Screws (Inch Series) (Includes Errata July 2013)
• ASME B18.21.1 Washers: Helical Spring-Lock@ Tooth Lock@ and Plain Washers (Inch Series)
• ASTM F1137 Standard Specification for Phosphate/Oil Corrosion Protective Coatings for Fasteners*， 2024-04-22 Update
• ASTM F1470 Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection*， 2024-01-26 Update
• ASTM F1941/F1941M Standard Specification for Electrodeposited Coatings on Mechanical Fasteners, Inch and Metric*， 2024-04-22 Update
• ASTM F436 Standard Specification for Hardened Steel Washers
• ASTM F606/F606M Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets*， 2021-06-01 Update
• ASTM F788 Standard Specification for Surface Discontinuities of Bolts, Screws, Studs, and Rivets, Inch and Metric Series*， 2020-04-01 Update
• ASTM F812 Standard Specification for Surface Discontinuities of Nuts, Inch and Metric Series*， 2022-08-01 Update
• SAE J409 Product Analysis - Permissible Variations from Specified Chemical Analysis of a Heat or Cast of Steel*， 2021-07-01 Update

ASME B18.16.6-2017 history

• 0000 ASME B18.16.6-2017(R2022)
• 2017 ASME B18.16.6-2017 Prevailing Torque Locknuts (Inch Series)
• 2014 ASME B18.16.6-2014 Prevailing Torque Locknuts (Inch Series) (B18.16.6 - 2014)
• 2008 ASME B18.16.6-2008 Nylon Insert Locknuts (Inch Series)

ASME B18.16.6-2017 -All Parts