ASME B18.31.1M-2008 pdf download.Metric Continuous and Double-End Studs.
Metric Continuous and Double-End Studs1 INTRODUCTION 1.1 Scope 1.1.1 This Standard covers the complete dimen- sional and general data for continuous-thread and double-end metric series studs recognized as an American National Standard. The following configura- tions are covered: continuous-thread stud: studs that are threaded over their complete length. double-end stud (clamping-type): studs with screw threads of the same length and configuration on each end. This type of stud serves the function of clamping two bodies together with a nut on each end. double-end stud (tap-end type): a stud designed to be installed in a tapped hole and usually with different threaded lengths on each end. The tap-end studs covered by this Standard have the same thread form on each end with the length of the tap-end threads equal to approximately 1 1 ⁄ 2 times the nominal thread diameter. NOTE: Both types of double-end studs in this Standard may be installed with a nut on each end. Similarly, one end of each type may be set in a tapped hole, usually with a locking compound. Double-end studs of the following body diameters are covered: (a) reduced-diameter body. See para. 6.1 for dimensions. (b) full body. See para. 6.2 for dimensions. 1.1.2 The inclusion of dimensional data in this Standard is not intended to imply that all products described are stock production items. Consumers should consult with suppliers concerning availability of products.
ASME B1 .1 3, Metric Screw Threads — M Profile ASME B1 8.2.8, Clearance Holes for Bolts, Screws, and Studs ASME B1 8.1 2, Glossary of Terms for Mechanical Fasteners ASME B1 8.1 8.2, Inspection and Quality Assurance for High Volume Machine Assembly Fasteners ASME B1 8.24, Part Identifying Number (PIN) Code System Standard for B1 8 Fastener Products ASME Y1 4.5M, Dimensioning and Tolerancing Publisher: The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 1 001 6-5990; Order Department: 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300. ASTM A 380, Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems ASTM F 468M, Nonferrous Bolts, Hex Capscrews, and Studs for General Use ASTM F 568M, Carbon and Alloy Steel Externally Threaded Metric Fasteners ASTM F 738M, Stainless Steel Metric Bolts, Screws and Studs ASTM F 788/F 788M, Surface Discontinuities of Bolts, Screws, and Studs — Inch and Metric Series ASTM F 1 941 M, Electrodeposited Coatings on Threaded Fasteners (Metric) Publisher: American Society for Testing and Materials (ASTM International), 1 00 Barr Harbor Drive, West Conshohocken, PA 1 9428-2959. 4 TERMINOLOGY For definitions of terms relating to fasteners or fea- tures thereof used in this Standard, refer to ASME B1 8.1 2.
b) If a documented, statistically based in-process inspection system ensures quality equivalent to ASME B1 8.1 8.2 or better using sample sizes in the inspection system, inspections may be conducted at any point after which the characteristic will not be altered. 1 7.2 Nondesignated Characteristics For nondesignated characteristics, in the event of a dispute as to conformance, the inspection levels and sample sizes in ASME B1 8.1 8.2 shall be used. 1 7.3 Reporting of Inspection Results The reporting of inspection results shall be agreed upon between the purchaser and supplier in the inquiry, purchase order, or contract.