Asme b5 1m 1985 (2004) (american society of mechanical engineers)

T-Slots, Their Bolts, Nuts, and Tongues ANSI/ASME B5.1M - 1985 (REVISION OF ANSI-~ 65.1-1975) REAFFIRMED 1998 FOR CURRENT COMMITFEE PERSONNEL PLEASE SEE ASME MANUAL AS-11 REAFFIRMED 2004 FOR CURRENT COMMITTEE PERSONNEL PLEASE E-MAIL CS@asme.org S P O N S O R E DA N DP U B L I S H E DB Y T H EA M E R I C A NS O C I E T Y United Engineering Center OF M E C H A N I C A LE N G I N E E R S E a s t t h Street N e w York, N Y 10017 Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh A AN M E R I C A NN A T I O N ASL T A N D A R D This Standard will be revised when the Society approves the issuance of a new edition There will be no addenda or written interpretations of the requirements of this Standard issued to this Edition This code or standard was developed under procedures accredited as meeting the criteria for American National Standards The Consensus Committee that approved the code or standard was balanced t o assure that individuals from competent and concerned interests have had an opport u n i t y t o participate The proposed code or standard was made available for public review and comment which provides an opportunity for 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 this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable Letters Patent, nor assume any such liability Users of a code or standard are expressly advised that determination of the is entirely their o w n validity of any such patent rights, and the risk of infringement of such rights, responsibility Participation by federal agency representative(s.1 or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this codeor standard ASME accepts responsibility for only those interpretations issued in accordance with governing ASME procedures and policies which preclude the issuance of interpretations by individual volunteers No part of this document may be reproduced in any form, in an electronic retrieval systemor otherwise, without the prior written permission of thepublisher Copyright 1986 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A I Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh Date of Issuance: September 15, 1986 (This Foreword is notpart of ANSVASMEB5.1M-1985.) Work on the standardization of T-slots started in 1924 and a tentative standard was published in 1927 The first official American Standard for T-slots came in 1941 This was last revised in 1949 The 1975 revision continued the basic sizes originally established However, all.dimensions except the nominal T-bolt size were converted to decimal inches in recognition of the increasing preference of industry for decimals Much material that was originally included to cover the transitional period has been deleted A lettering system for the figures has been adopted that should facilitate cross reference between tables In this system, comparable dimensions bear the same letter with a subscript indicating table number Thus, A , is width of T-slot throat, A2 is diameter of T-bolt to fit that throat, and A3 is width of T-nut tongue to fit that throat Metric T-slots, as they have been standardized by ISO/TC39, Machine Tools, have been placed side by side with the inch-sized T-slots Interchangeability is possible between corresponding sizes of the two measuring systems with the exception of the locating tongue and Tslot throat dimensions, and the difference in the fastening threads on T-bolts The listing of T-slots and T-bolts in I S 299-1973, although essentially identical to sizes listed in this Standard, are rejected because they are shown with fractional dimensions The spacing of T-slots in machine tool components as given in I S 299-1973 is likewise rejected following consensus of U.S builders and users of machine tools This Standard accepts the tolerance codes of I S 286 for metric sizes of T-slots only Information relative to cutters for T-slots has been deleted to avoid duplication and possible conflict with information contained in ANWASME B94.19,.Milling Cutters and End Mills Following approval by the Standards Committee, the 1975 revision was presented to the sponsor organizations and to ANSI for approval and designation as an American National Standard This was granted on August 8, 1975 The 1985 revision was approved as an American National Standard on December 12, 1985 111 Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh FOREWORD (The following is the roster of the Committee at the timeof approval of this Standard) OFFICERS R T Woythal, Vice Chairman, Group A W S Roorda, Vice Chairman, Group B H Cooper, Vice Chairman, Group C W R Daisak, Secretary COMMITTEE PERSONNEL THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS F S Blackall, The Taft-Pierce Manufacturing Co., Woonsocket, Rhode Island DEFENSE INDUSTRIAL PLANT EQUIPMENT CENTER J W Lynch, Defense Logistics Agency Memphis, Tennessee D Williams, Alternate, Defense Logistics Agency, Memphis, Tennessee NATIONAL MACHINE TOOL BUILDERS ASSOCIATION V R Walser, Giddings & Lewis Machine Tool Co., Fond du Lac, Wisconsin A M Bratkovich, Alternate, National Machine Tool Builders Association, McLean, Virginia SOCIETY OF AUTOMOTIVE ENGINEERS R W Kynast, The Cross Co., Fraser, Michigan -U.S DEPARTMENT OF THE ARMY D L York, U.S Army Armament Material Readiness Command, Rock Island, Illinois INDIVIDUAL MEMBERS P Ackerman, AMF, Inc Westerville, Ohio H Cooper, Consultant, Troy, Michigan W S Roorda, Alcona Associates Inc., Harrisville, Michigan J J Smetana, General Electric Co., Schenectady, New York R T Woythal, Kearney 81Trecker Corp., Milwaukee, Wisconsin SUBCOMMITTEE 65.1 - COMPONENTS R R Carrol, Lucas Machine Division, Litton Industrial Products, Cleveland, Ohio G J Czarnecki, DeLaval Turbine Canada Ltd., Ontario, Canada R T Woythal, Kearney & Trecker Corp., Milwaukee, Wisconsin V Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled whe ASME STANDARDS COMMITTEE B5 Machine Tools, Components, Elements, Performance, and Equipment Foreword Standards Committee Roster Scope Definitions References Dimensions 111 v 1 1 Tables T-Slots DimensionsofT-Bolts DimensionsofT-Nuts Dimensions of Tongue Seats, Inserted Tongues, and Solid Tongues vii Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh CONTENTS AN AMERICAN NATIONAL STANDARD T-SLOTS, THEIRBOLTS, NUTS, AND TONGUES SCOPE ANSI/ASME Gages 1.16M,B and Gaging for Metric M Screw Threads ANWASME B18.3, Socket Cap, Shoulder, and Set This Standard applies to T-slots as used on machine tools for the mounting of fixtures, attachments, and accessories; and to the bolts, nuts, and tongues used in such slots screws ANWASME B94.19, Milling Cutters and End Mills Publisher: ASME United Engineering Center 345 East 47th Street New York, NY 10017 Orders: ASME Order Department 22 Law Drive Box 2300 Fairfield, NJ 07007-2300 DEFINITIONS T-slot - a slot with a narrow throat near the surface and a wider space (called headspace) further from the surface so that clamping can be effected aganst the shoulder at the inside end of the throat T-bolt - a bolt with a square head that fits in the headspace of a T-slot with a shank which protrudes through the throat and to which the fixture is attached T-nut - a square nut whichfits the headspace of a T-slot and has a tongue fitting in the throat A T-nut is tapped to take a stud of smaller diameter than the throat of the slot solid tongue - a projection on a fixture or attachment designed to locate in the throat of a T-slot inserted tongue - a tongue which is inserted in a seat in the base of a fixture and projects to locate the fixturein the throat of a T-slot IS0 263-1973, I S Inch Screw Threads I S 286-1962, System of Limits and Fits, Part I IS0 965-1973, General Purpose Metric Screw Threads Publisher: International Organization for Standardization Geneva, Switzerland Orders: American National Standards Institute, Inc 1430 Broadway New York, NY 10018 REFERENCES DIMENSIONS The latest editions of the following American National Standards apply: ANSUASME B1.1, Unified Inch Screw Threads Suggested dimensions forT-slots,T-bolts,T-nuts, tongue seats, inserted tongues, and solid tongues are given in Tables through Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh ANSI/ASME 85.1 M-1985 AN AMERICAN NATIONAL STANDARD Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled whe T-SLOTS, THEIR BOLTS, NUTS, AND TONGUES ANSI/ASME B5.1 M- 1985 AN AMERICAN NATIONAL STANDARD W 24 30 36 42 48 1.OOO 1.250 1.500 1.062 1.312 1.562 0.562 0.688 0,812 0.282 0.344 0.438 "' in .' ' 1.750 2.125 2.562 0.906 1.188 1.375 0.500 0.594 0.719 48 85 54 28 36 42 14 18 22 10 12 mm of A, [Note (211 in 66 1.844 2.219 2.656 0.969 1.250 1.469 0.562 0.656 0.781 max 80 59 90 46 56 68 23 30 37 14.5 16 19 10 11 95 50 60 72 25 32 40 16 18 21 11 12.5 mm max max min Width B, 0.234 0.266 0.328 0.828 1.094 1.344 44 50 0.781 1.031 1.281 0.359 0.391 0.453 0.484 0.594 0.625 0.203 0.234 0.297 in 36 40 20 25 32 12 16 7 40 44 22 28 35 11 14 18 3.5 max max mm Depth C1 0.750 1.000 1.250 0.312 0.438 0.562 0.125 0.156 0.219 '.' 1.250 1.562 1.938 0.688 0.875 1.062 0.375 0.438 0.562 in + 26 33 39 12 16 20 11 4.5 36 46 53 19 24 29 11 14 17 0.8 max max max max max mm Depth of Throat Dl option + mm U z D v) -I z C 0.03 0.03 0.'03 0.02 0.03 0.03 0.02 0.02 0.02 R1 0.06 0.06 0.06 0.03 0.03 0.03 0.02 0.03 0.03 0.8 W, 0.05 0.05 0.05 0.03 0.05 0.05 0.03 0.03 0.03 1.5 1.5 0.8 0.8 0.8 0.5 0.8 0.8 0.5 0.5 0.5 0.5 R1 .0.80.80.5 U1 2.5 2.5 1.5 1.5 1.5 0.8 0.8 0.8 0.8 0.8 0.8 Wl max 2 1.3 1.3 1.3 0.8 1.3 1.3 0.8 0.8 0.8 J '1 max z D p p in Rounding or Breaking of Corners [Note (311 NOTES: (1) Width of tongue (tenon) tobe used with the above T-slots willbe found in Table (2) Throat dimensions are basic When slots are intended to be used for holding only, tolerances can be 0.0 0.010 in or H12 Metric (ISOIR286); when intended for location, tolerance can be0.0 0.001 in or H8 Metric (ISOIR286) (3) Corners of T-slots may be square, or may be rounded or broken to the indicated maximum dimensions at the manufacturer's 12 16 20 10 0.250 0.312 0.375 0.500 0.625 0.750 mm in Width T-Nominal Bolt [Note ( 1)I Headspace Dimensions TABLE 1, T-SLOTS I Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh T-SLOTS, THEIR BOLTS, NUTS, AND TONGUES ANSI/ASME B5.1 M-1985 AN AMERICAN NATIONAL STANDARD [Note VI ' 75 85 74 84 60.8 75 90.5 2.387 2.91 3.536 106.1 120.2 31.1 39.6 48.1 1.238 1.591 1.856 18.4 21.2 25.5 12.7 14.1 mm max 0.663 0.796 0.972 in rnax Height Across Width Corners in C, 0.688 0.938 1.188 0.31 0.406 0.531 0.1 56 0.188 0.250 0.656 0.906 1.156 7.6 0.297 0.391 9.6 0.500 0.141 0.1 72 0.234 2.1 32 36 18 23 28 10 14 6 2.5 max max max max.min max max Bolt Head Dimensions mm 30.5 34.5 17.2 22.2 27.2 13.2 5.6 5.6 6.6 3.6 NOTES: Tolerances for diameters of bolts or studs and for threads are in accordance with ANSllASME 61.1 and I S 263-1973 for inch threads, and with ANWASME B1.16M and I S 965-1973 for metric threads Corners of T-bolts may besquare, or may be rounded or brokento the indicated maximum dimensions at the manufacturer's option T-slots to be used with these bolts will be found in Table Metric thread grade and tolerance position is 59 69 - M42 M48 42 52 63 43 53 64 1.656 2.031 2.469 1.688 2.062 2.500 M 24 M30 M36 1.000- 1.250-7 1.500- 21 27 33 22 28 34 0.844 1.094 1.281 0.875 1.125 1.31 M12 M16 M20 0.500-13 0.625-1 0.750-10 12 14 17 13 15 18 0.438 0.531 0.656 0.469 0.562 0.688 8.5 9.5 10 M6 M8 M10 max max (41 M4 M5 mm in 0.250-20 0.31 2-1 0.375-16 Customary UNC-2A B2 Across Flats Width Metric IS0 [Notes (1) (311 A2 Nominal T-Bolt Size and Thread TABLE DIMENSIONS OF T-BOLTS 0.5 0.8 0.8 0.8 0.8 0.8 0.02 0.03 0.03 0.03 0.03 0.03 1 0.5 0.5 0.5 0.02 0.02 0.02 0.3 0.3 rnm in R2 1.5 1.5 1.5 0.06 0.06 0.06 2 1.5 1.5 1.5 0.8 0.8 0.8 0.03 0.03 0.03 0.06 0.06 0.06 0.5 0.5 rnm (211 in w2 Rounding of Corners [Note z rn % v) $ G, z i z v) & -4 z C Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh 8.5 0.250-20 10.75 0.312-18 UNC-3B in 42 48 46.75 46.25 52.5 51.75 ' 24 1.033 1.018 26.5 26 0.750-10 30 1.273 1.258 33 32.5 1.00036 1.523 1.508 39.25 38.75 1.250- L , in rnax 'rnax mm max 11 I1 I1 mm in mm Thickness, Including Length of Tongue K3 Nut L, [Note (311 [Note (311 in mm Height of Nut C, i : M36 ~ M20 1.688 1.656 M24 2.062 2.031 M30 2.500 2.469 75 85 43 42 53 52 64 63- M10 0.875 0.844 22 M12 1.125 1.094 2728 M16 1.312 1.281 34 0.562 0.531 1415 0.688 0.656 18 74 84 33 21 0.688 0.656 0.938 0.906 23 1.188 1.156 0.312 0.297 0.406 0.391 0.531 0.500 0.188 0.172 17 0.250 0.234 M6 M8 32 36 28 18 10 14 12 15 21 0.875 1.125 1.312 0.562 10.5 0.688 30.5 34.5 48 54 17.2 1.000 ' 1.688 22.2 1.312 34 2.062 27.2 1.625 42 2.500 7.6 0.531 9.6 0.625 13.2 0.781 5.6 6.281 6.6 0.375 Total in, mm max max max max R3 75 85 46 53 65 23 27 35 18 20 '.' 0.03 0.03 0.03 0.02 0.03 0.03 0.02 0.02 1 0.8 0.8 0.8 0.5 0.8 0.8 0.5 0.5 0.06 0.06 0.06 0.06 0.06 0.06 0.03 0.03 in 1.5 1.5 1.5 1.5 1.5 1.5 0.8 0.8 mm : v) t) z -4 D v) -I v) II! v) $ 0 z z D -4 v) I - D m Z W 5; 5s gg zz rn $2 22C w3 Rounding of Corners - '4i' max In Width of Nut B3 T- ' j ;I i/ bf NOTES: (1) T-slot dimensions t o f i tthe above nuts will be found in Table (2) Tolerances for threads are in accordance with ANSI/ASME 81.1 and I S 263-1 973for inch threads, andANSI/ASME B1.16M and IS0 965-1 973for metric threads (3) There are no tolerances givenfor "total thickness" or "nut length" as they need not be held to close limits (4) Metric tapped threadgrade and tolerance position is5H 1.000 1.250 1.500 L TABLE DIMENSIONS OF T-NUTS ' II II II I1 II II IS0 mm E3 Tap for [Note (211 rnax mm A3 0.3300.320 8.7 10 0.418 0.408 11 mm max in Stud Tongue Width of 0.500 12 0.543 0.533 13.5 13.25 0.375-16 0.625 16 0.668 0.658 17.25 17 0.500-13 0.750 20 0.783 0.773 20.5 20.25 0.625-11 0.312 0.375 0.250 in Nominal Bolt Size [Note (111 I!I I ;II +L3 CI 1'1 !I I1 I' ii I ir 'I D> zz DE Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled wh ad 42 mm 1.062 1.312 42 1.562 140.562 0.688 0.812 48 54 28 36 18 22 0.344 0.47 10 0.56 12 in Width A,Length [Note (111 Dimensions 1.50 1.88 2.25 0.75 0.94 1:12 0.38 64 72 37 46 57 19 24 30 10 12 15 0.219 0.250 0.312 0.125 0.125 0.1 56 0.094 0.125 0.125 10 12 3 2.5 3 2 mm in mrn in Projection 0, [Note (311 L, [Note (211 Tongue 0.562 0.625 16 0.750 0.344 0.375 10 0.438 12 0.219 0.281 0.312 in 22 25 19 14 4.5 mm Thickness K4 0.343 0.375 0.438 0.219 0.250 0.281 0.125 0.156 0.187 in 13 12 10 11 3.5 2.5 rnm Depth of Seat S, [Note (311 0.375-16 M10 0.375-16 0.500-13 M12 M14 M16 M10 21 24 16 16 18 0.562 0.562 0.750 13 M6 M8 0.250-20 M6 0.250-20 0.31 2-1 5.5 8.5 3.8 4.5 mm 0.375 10 0.375 10 0.469 0.20.5 0.270 0.312 M3 M4 M5 NO 5-40 NO 8-32 NO 10-24 in Diameter of Head H4 (41 Metric IS0 [Note M2 M2.5 Customary UNC3A13B Diameter of Screw E, in 0.375 10 0.375 0.500 0.250 0.250 0.312 14 16 10 12 6 2.5 mm Thickness of Head G4 0.125 0.164 0.190 Socket Head Cap Screw DIMENSIONS OF TONGUE SEATS, INSERTED TONGUES, AND SOLID TONGUES NOTES: (1) A tolerance of 0-0.001 in or H8 metric (ISOIR 286) is allowed on "width of tongue" A, (2) The length of tongue can be variedto suitrequirements (3)The "tongue projection" D4 and "depth of seat" S, are vital only when reversible tongues are expected t o be used In some cases, a greater projection D, or a shallower seat S4 may be desirable Such changes can be made without interferring with interchangeability (4) Metric thread fit is 5H/4g 6g 48 24 30 36 1.000 1.250 1.500 16 20 0.2500.282 0.312 0.375 0.43810 120.500 0.625 0.750 mm in Nominal T-Bolt Size A2 and TABLE -I z cn -I C z v) * Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled whe Copyrighted material licensed to Stanford University by Thomson Scientific (www.techstreet.com), downloaded on Oct-05-2010 by Stanford University User No further reproduction or distribution is permitted Uncontrolled w