ASME_B18.8.2-2020.pdf

AN AM E R IC AN NAT IO NAL STANDARD ASME B18.8.2-2020Revision of ASME B18.8.2-2000(R2010)Taper Pins,Dowel Pins,Straight Pins,GroovedPins,and Spring Pins(Inch Series)ASME B18.8.2-2020Revision of ASME B18.8.22000(R2010)Taper Pins,Dowel Pins,Straight Pins,GroovedPins,and Spring Pins(Inch Series)AN AMERICAN NATIONAL STANDARDxDate of Issuance:December 21,2020This Standard will be revised when the Society approves the issuance of a new edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard.Interpretations arepublishedontheCommitteewebpageandunderhttp:/go.asme.org/InterpsDatabase.PeriodicallycertainactionsoftheASMEB18 Committee may be published as Cases.Cases are published on the ASME website under the B18 Committee Page athttp:/go.asme.org/B18committee as they are issued.Errata to codes and standards may be posted on the ASME website under the Committee Pages to provide corrections toincorrectlypublisheditems,ortocorrecttypographicalorgrammaticalerrorsincodesandstandards.Sucherratashallbeusedon the date posted.The B18 Committee Page can be found at http:/go.asme.org/B18committee.There is an option available to automaticallyreceive an e-mail notification when errata are posted to a particular code or standard.This option can be found on theappropriate Committee Page after selecting“Errata”in the“Publication Information”section.ASME is the registered trademark of The American Society of Mechanical Engineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunityto participate.The proposed codeorstandardwasmadeavailable forpublic reviewandcommentthatprovidesanopportunityfor additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in thisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtherisk of infringement of such rights,is entirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted as government or industryendorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME proceduresand policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2020 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.vCommittee Roster.viiCorrespondence With the B18 Committee.viii1Introduction.12General Data for Pins.13General Data for Taper Pins.24General Data for Hardened Ground Machine Dowel Pins.55General Data for Hardened Ground Production Dowel Pins.96General Data for Unhardened Ground Dowel Pins.117General Data for Straight Pins.148General Data for Grooved Pins,Grooved Drive Studs,and Grooved T-Head Cotter Pins.169General Data for Spring Pins.27Nonmandatory AppendicesARecommended Hole Specifications for Taper Pins.34BDouble Shear Testing of Pins.38CType B,C,and D Grooved Pin Dimensions.39DConversion Table for SAE and UNS Material Specifications.40Figures4.2.1.1-1Point Concentricity.7A-1-1Step Drill Selection.36A-1-2Drill Diameter Examples.37B-1-1Typical Pin Shear Test Fixtures.38Tables3.1.1-1Dimensions of Taper Pins.33.5.3-1Standard Sizes and Lengths of Taper Pins.44.1.1-1Dimensions of Hardened Ground Machine Dowel Pins.64.3.3-1Preferred Sizes and Lengths of Hardened Ground Machine Dowel Pins.74.9.1-1Suggested Hole Sizes for Standard Series Pins.85.1.1-1Dimensions of Hardened Ground Production Dowel Pins.95.3.3-1Preferred Sizes and Lengths of Hardened Ground Production Dowel Pins.105.8.1-1Suggested Hole Diameters for Hardened Ground Production Dowel Pins.116.1.1-1Dimensions of Unhardened Ground Dowel Pins.126.3.3-1Preferred Sizes and Lengths of Unhardened Ground Dowel Pins.136.8-1Suggested Hole Diameters for Unhardened Ground Dowel Pins.147.1.1-1Dimensions of Chamfered and Square End Straight Pins.15iii8.2.1-1Dimensions of Grooved Pins.178.2.1-2Dimensions of Round-Head Grooved Drive Studs.198.2.1-3Dimensions of Grooved T-Head Cotter Pins.208.2.2-1Expanded Diameters for Grooved Pins Made From Low Carbon or Alloy Steel.218.2.2-2Expanded Diameters for Grooved Pins Mad