BS 7435-1990 Nominal lengths of bolts,screws and studs,and thread lengths for general purpose bllts
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2916BE3365EA4ED2AF77FD009FFF1CB8 |
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0.44 |
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8 |
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2024-6-23 |
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V,BRITISH STANDARD,Specification for,Nominal lengths of bolts 9,screws and studs 9 and,thread lengths for,general purpose bolts,BS 7345 : 1990,ISO 888 : 1976,リスス,8 月 2,W Bfl UJ0,<00 44 oil 40,■丒邮,BS 7345 : 1990,Committees responsible for this,British Standard,The preparation of this British Standard was entrusted by the General,Mechanical Engineering Standards Policy Committee (GME/-) to Ibchnical,Committee GME/9, upon which the following bodies were represented:,BEAMA Ltd.,British Constructional Steelwork Association Ltd.,British Industrial Fasteners Federation,British Railways Board,British Steel Industry,British Steel Industry (Wire Section),Gauge and Ibol Makers' Association,Ministiy of Defence,Society of Motor Manufacturers and Traders Limited,Washer Manufacturers' Association of Great Britain,The following bodies were also represented in the drafting of the standard,through subcommittees and panels:,British Furniture Manufacturers' Federation,British Independent Steel Producers' Association,British Plastics Federation,British Turned-parts Manufacturers' Association,EEA (the Electronic and Business Equipment Association),General, Municipal, Boilennakei's and Allied Trades Union,Institute of Metal Finishing,National Association of Fastener Stockholders,Portable Electric Ibol Manufacturers' Association,Screw Thread Ibol Manufacturei's' Association,Small Electrical Appliances Marketing Association,Society of British Aerospace Companies Limited,Steel Construction Institute,Tblecommunications Engineering and Manufacturing Association,Timber Trade Federation,曲rsley Ibchnical Centre Ltd.,This British Standard, having,been prepared under the,direction of the General,Mechanical Engineering,Standards Policy Committee,was published under the,authority of the Board of BSI Amendments issued since publication,anU しUJiitb 111 LU KlieCL Uil,30 November 1990 Amd. No.,e RQT 1 CCC,Date Tbxt affected,0 xsoj iyyu,The following BSI references,relate to the work on this,Committee reference GME/9,Draft for approval 90/76023 DC,ISBN 0 580 19058 7,BS 7345 : 1990,Contents,Page,Committees responsible Inside front cover,National foreword ii,Specification,1 Scope and field of application 1,2 Reference 1,3 Nominal lengths for bolts, screws and studs 1,4 Thread lengths for general purpose bolts 1,Tkbles,1 Basic dimensions in millimetres and in inches 1,2 Formulae - Dimensions in millimetres and inches 1,3 Allocation of the thread lengths to the bolt diameters. Dimensions in,millimetres 2,4 Allocation of the thi'ead lengths to the bolt diametei's. Dimensions in,inches 2,i,BS 7345 : 1990,National foreword,This British Standard, which has been prepared under the direction of the,General Mechanical Engineering Standards Policy Committee, is identical with,ISO 888 : 1976 4Bolts, screws and studs - Nominal lengths, and thread lengths for,general purpose bolts5 published by the International Organization for,Standardization (ISO).,Cross-reference,International standard,ISO 225 : 1976,Corresponding British Standard,BS 6565 : 1985 Method for dimensioning and designating,bolts, screws, studs and nuts,(Identical),Compliance with a British Standard does not of itself confer immunity from,legal obligations.,INTERNATIONAL STANDARD ISO 888-1976 (E),Bolts, screws and studs — Nominal lengths, and thread lengths,for general purpose bolts,1 SCOPE AND FIELD OF APPLICATION,This International Standard specifies nominal lengths for,bolts, screws and studs, and thread lengths for general,purpose bolts.,2 REFERENCE,ISO 225, Bolts, screws and studs - Dimensioning.,slotted head screws, cross recess head screws) and studs of,both metric and inch sizes. Table 1 indicates the,comparable basic lengths in the two systems, but values are,not intended to be identical,Lengths in brackets should be avoided as far as possible.,For dimensioning of nominal lengths, see ISO 225.,3 NOMINAL LENGTHS FOR BOLTS, SCREWS AND,STUDS,The basic dimensions shown in table 1 apply to the nominal,lengths of bolts and screws (for example : hexagon bolts,TABLE 1 — Basic dimensions in millimetres and in inches,Nominal length,/,mm in,2 1/16,2,5 3/32,3 1/8,4 5/32,5 3/16,6 1/4,(7) 一,8 5/16,(9) -,10 3/8,￠11) 7/16,12 1/2,14 9/16,16 5/8,(18) 一,20 3/4,(22) 7/8,25 1,(28) 1 1/8,30 1 1/4,(32) -,35 1 3/8,(38) —,40 1 1/2,45 1 3/4,50 2,55 2 1 /4,Nominal length,/,mm in,60 —,65 2 1/2,70 2 3/4,75 3,80 3 1/4,85 -,90 3 1/2,(95) 3 3/4,100 4,(105) 4 1/4,110 4 1/2,(115) -,120 4 3/4,(125) —,130 5,140 5 1/2,150 6,160 一,170 6 1/2,180 7,190 7 1/2,200 8,220 9,240 一,260 10,280 11,300 12,4 THREAD LENGTHS FOR GENERAL PURPOSE,BOLTS,The thread lengths shown in tables 2, 3 and 4 apply to ……
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