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Fastener Wrench Standards

Fastener standards for wrenches have to encompass the wide range of fasteners that wrenches are used upon, addressing wrenches intended for both metric and inch fasteners, and the necessary dimensions of the parts of the wrench for them to be able to properly apply torque to fasteners while hand-held versions remain ergonomic and machine driven remain compatible.


SAE AS 28431A-2011 (SAE AS28431A-2011)

Aerospace Hand Torque Wrenches (Mechanical, Impulse)

This SAE International Aerospace Standard covers requirements for micrometer adjustable, feel impulse, torque wrenches. The torque wrench is used to apply a pre-set torque to threaded fasteners and other torque requirements.


SAE MA 4534A-2013 (SAE MA4534A-2013)

Socket Wrenches, Hand (Metric) ( Reaffirmed: May 1999 Jan 2004 )

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist. This SAE Aerospace Standard covers high strength commercial sockets and universal sockets which posses the strength, clearances, and internal wrenching design so configured that, when mated with hexagon (6 point) fasteners, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points. this document provides additional requirements beyond ANSI B107.5 appropriate for aerospace use. Inclusion of dimensional data in this document is not intended to imply all of the products described therein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of stock production sizes


SAE AS 954G-2011 (SAE AS954G-2011)

Wrenches, Hand, Twelve Point, High Strength, Thin Wall

This SAE Aerospace Standard (AS) covers high strength thin wall (commercial) sockets, universal sockets, box wrenches and torque adapters which possess the strength, clearances, and internal wrenching design so configured that, when mated with 12-point fasteners conforming to the requirements of AS 870, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points. Inclusion of dimensional data in this document is not intended to imply that all of the products described herein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of stock production sizes. The dimensional limits of box and combination wrench lengths have been established to provide configuration control for tool storage applications.


SAE AS 955-2012 (SAE AS955-2012)

Metric Sockets, Wrenches, Hand Twelve Point, High Strength, Thin Wall

This SAE Aerospace Standard (AS) covers high strength thin wall (commercial) metric sockets, universal metric sockets, metric box wrenches and metric torque adaptors which possess the strength, clearances, and internal wrenching design so configured that, when mated with 12 point fasteners conforming to the requirement of ISO 4095, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points. This standard provides additional requirements beyond ASME B107.100 and B107.5M appropriate for aerospace use. Inclusion of dimensional data in this document is not intended to imply that all of the products described herein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of stock production sizes. The dimensional limits of box and combination wrench lengths have been established to provide configuration control for tool storage applications. AS955 supersedes MA4534 and MA4535.


SAE MA 1547A-1989 (SAE MA1547A-1989)

Wrenches, Twelve Spline, Metric ( Reaffirmed: Jul 1991 Oct 1995 )

This standard establishes the means of assessing the performance of external spline drive wrenching systems for fasteners. The standard defines the Design, Performance and Test Requirements for metric spline drive fastener external wrenching systems. The spline wrench shall be capable of torque loading hexagonal, bi-hexagonal and spline drive fasteners. Fasteners having the spline wrenching configuration shall not be capable of being wrenched with hexagonal and bi-hexagonal wrenches.


SAE MA 1586A-1987 (SAE MA1586A-1987)

Wrench Configuration, 12 Spline Drive, Metric ( Reaffirmed: Feb 1992 )

Tools conforming to this standard will wrench fasteners having wrenching configurations per MA 1549. Nominal wrenching size value corresponds to maximum width across flats of comparable hexagon and double hexagon (12 Point) wrenching configurations. The wrench will fit all three configurations.


SAE MA 4535A-2013 (SAE MA4535A-2013)

Wrenches, Box and Open End Combination Twelve Point, High Strength, Thin Wall, Metric ( Reaffirmed: Jan 2004 )

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist. This SAE Metric Aerospace Standard (MA) provides dimensional, performance, testing and other requirements for high strength, thin wall, double head box and combination wrenches which possess an internal wrenching design so configured that, when mated with hexagon (6 point) fasteners, they shall transmit torque to the fastener without bearing on the apex of the fastener's wrenching points. This standard provides additional requirements beyond ANSI B107.9 appropriate for aerospace use. Inclusion of dimensional data in this document is not intended to imply all of the products described therein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of stock production sizes


ANSI/ASME B107.8-2003

Adjustable Wrenches

Provides performance and safety requirements for open end adjustable wrenches, with rack and worm adjustment, generally used on both hexagonal and square bolts and nuts. Inclusion of dimensional data in this Standard is not intended to imply that all products described herein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of production sizes.


SAE AIR 1936A-1997 (SAE AIR1936A-1997)

Study Of Wrenching Engagement On AS870C Double Hexagon (12 Point) Fasteners

This study addresses the adequacy of sockets, wrenches, and torque adapters conforming to AS954 to wrench 12 point fasteners with wrenching configurations conforming to AS870C. Reported wrenching problems with smaller sizes are investigated through examining the combined tolerances on the fasteners and wrenches, conducting torque testing on typical high strength lock nuts. Possible solutions to correct these wrenching problems are presented.


ISO 10103:2018

Assembly tools for screws and nuts - Doubled-headed box wrenches, flat and offset - Outside dimensions and test torques

ISO 10103:2018 specifies the overall length and the maximum head thickness for double-headed box wrenches, flat (Form B) and offset (Form A). NOTE The wrenches covered by this document are the ones identified in ISO 1703:2005 under reference numbers 1 1 02 03 0 and 1 1 02 04 0. ISO 10103:2018 covers technical specifications for the test torque of these products. All other technical specifications are given in ISO 1711 1.


ISO 10104:2018

Assembly tools for screws and nuts - Double-headed box wrenches, deep offset and modified offset - Outside dimensions

ISO 10104:2018 specifies the overall length and the maximum head thickness for double-headed box wrenches, deep offset (Form B) and modified offset (Form A). NOTE The wrenches covered by this document are the ones identified in ISO 1703:2005 under reference numbers 1 1 02 06 0 and 1 1 02 05 0. ISO 10104:2018 does not cover technical specifications for these products. Technical specifications are given in ISO 1711 1:2016, series A.


ISO 1085:2016

Assembly tools for screws and nuts - Double-ended wrenches - Size pairing

ISO 1085:2016 specifies the size pairing of double-ended wrenches with unequal nominal widths across flats. NOTE The wrenches covered by this document are those identified in ISO 1703:2005 under reference nos. 1 1 01 02 0, 1 1 02 03 0, 1 1 02 04 0, 1 1 02 05 0, 1 1 02 06 0, 1 1 02 08 0.


ISO 10914:1996

Assembly tools for screws and nuts - Sockets and wrenches for spline drive

Specifies technical and test requirements for hand-operated sockets and box wrenches used for attachment and detachment of metric spline drive fastners.


ISO 1711-1:2019

Assembly tools for screws and nuts - Technical specifications - Part 1: Hand-operated wrenches and sockets

This document specifies minimum values for Rockwell hardness and torsional strength for hand-operated wrenches and sockets. It covers the following three series of torsion torques: Series A: usual box wrenches and socket wrenches; EXAMPLE 1 Reference nos. 1 1 02 01 0; 1 1 02 02 0 and 1 1 02 02 1; 1 1 02 03 0; 1 1 02 04 0; 1 1 02 05 0; 1 1 02 06 0; 1 1 02 09 0; 1 1 02 10 0; 1 1 02 11 0; 1 1 02 12 0; 1 1 02 13 0 and 1 1 02 13 1; 1 1 02 14 0; 1 1 02 15 0; 1 1 08 01 0; 1 1 08 02 0. Series C: open end wrenches; EXAMPLE 2 Reference nos. 1 1 01 01 0; 1 1 01 01 1; 1 1 01 02 0; 1 1 01 03 0; 1 1 01 04 0. Series E: hand-operated square drive sockets. EXAMPLE Reference nos. 2 1 02 01 0 and 2 1 02 01 1. NOTE The wrenches and sockets mentioned above are listed under their respective reference numbers in ISO 1703.


ISO 2236:1991

Assembly tools for screws and nuts - Forged and tubular socket wrenches - Maximum outside head dimensions

Applies to forged and tubular socket wrenches, listed in ISO 1703 under numbers 15 to 20. This third edition cancels and replaces the second edition (1982).


ISO 3315:2018

Assembly tools for screws and nuts - Driving parts for hand-operated square drive socket wrenches - Dimensions and tests

This document is applicable to driving parts of hand-operated square drive socket wrenches. NOTE The driving parts covered by this document are the ones identified in ISO 1703:2018 under reference No. 6 1 00 01 0 and 6 1 00 01 1, 6 1 00 03 0, 6 1 00 04 0, 6 1 00 05 0 and 6 1 00 05 1, 6 1 00 06 0 and 6 1 00 06 1, 6 1 00 09 0 as well as 6 1 00 10 0 and 6 1 00 10 1. It specifies: a) the overall dimensions; b) the minimum Rockwell hardness value for their driving squares; c) the method of torque testing; d) the minimum torsional strength values; e) the designation; f) the marking.


ISO 3316:2018

Assembly tools for screws and nuts - Attachments for hand-operated square drive socket wrenches - Dimensions and tests

This document applies to attachments for hand-operated square drive socket wrenches. NOTE 1 The attachments for hand-operated square drive socket wrenches covered by this standard are the ones identified in ISO 1703:2018 under reference No. 5 1 00 03 0, 5 1 00 04 0, 5 1 00 04 1 and 5 1 00 05 0. It specifies a) the overall dimensions; b) the minimum Rockwell hardness value for their driving squares; c) the method of torque testing; d) the minimum torsional strength values; e) the designation; and f) the marking. NOTE 2 For the specification of square adaptors with a hexagon or cylindrical flat drive, for power socket wrenches, see ISO 3317.


ISO 3317:2015

Assembly tools for screws and nuts - Square drive adaptor with hexagon or cylindrical flat drive, for power socket wrenches

ISO 3317:2015 prescribes the technical specifications for square drive adaptor hexagon or cylindrical flat inserts for power socket wrenches. It applies to square drive adaptor with hexagon drive or with cylindrical flat end drive as defined in ISO 1173, and to driving squares for power socket wrenches as defined in ISO 1174 2. Square drive adaptors with hexagon drive for power socket wrenches are listed under number 5 2 00 02 0 in ISO 1703.


ISO 3318:2016

Assembly tools for screws and nuts - Open-ended wrenches, box wrenches and combination wrenches - Maximum widths of heads

ISO 3318:2016 specifies the maximum outside head dimensions for open-ended wrenches, box wrenches and combination wrenches. NOTE 1 The wrenches covered by this document are the ones identified in ISO 1703:2005 under reference nos. 1 1 01 02 0, 1 1 01 05 0, 1 1 01 06 0, 1 1 02 03 0, 1 1 02 04 0, 1 1 02 05 0, 1 1 02 06 0, 1 1 02 01 0, 1 1 02 02 0 and 1 1 02 08 0. NOTE 2 Box wrenches can also be designated as ring wrenches. ISO 3318:2016 does not cover technical specifications for these products. Technical specifications are given in ISO 1711 1.


ISO 4229:2017

Assembly tools for screws and nuts - Single-head engineers wrenches for lower torque applications - Maximum outside dimensions of heads and test torques

ISO 13778:2017 specifies requirements of single-head engineer's wrenches with nominal width across flats from 3,2 to 120. It specifies the maximum outside dimensions of heads and gives the test torque values. The lower torque application designation is in accordance with the smaller head dimensions. NOTE The wrenches covered by this document are the ones identified in ISO 1703:2005 under reference Nos. 1 1 01 01 0 and 1 1 01 01 1.


ISO 6787:2018

Assembly tools for screws and nuts - Adjustable wrenches

ISO 6787:2018 specifies the dimensions of adjustable wrenches and the admissible clearance of the adjustable jaw. It also specifies test conditions to test the suitability of tool performance.


ISO 6788:1997

Assembly tools for screws and nuts - Four-way socket wrenches - Dimensions and torque test

This International Standard specifies the dimensions of socket heads, in millimetres, of four-way socket wrenches types 1, 2, 3 and 4 and also lays down test conditions to check the suitability of tool performance. This International Standard applies to four-way socket wrenches for assembling screws and nuts with widths across flats of metric dimensions for trucks and cars. The wrenches are listed under number 21 in ISO 1703.


ISO 691:2005

Assembly tools for screws and nuts - Wrench and socket openings - Tolerances for general use

ISO 691:2005 specifies tolerances on wrench and socket openings for screws and nuts (or similar parts) having metric width across flats dimensions. It gives, for each dimension, the tolerances for general use, defined by its two deviations, minimum and maximum, with respect to the nominal value. These deviations have been determined in relation to the width across flats tolerances for screws and nuts specified in ISO 4759-1 and with regard to the manufacture of tightening tools.


ISO 7738:2015

Assembly tools for screws and nuts - Combination wrenches - Lengths of wrenches and maximum thickness of heads

ISO 7738:2015 specifies the overall length and the maximum head thickness of combination wrenches, offset (Form A) and offset (Form B). NOTE Combination wrenches are listed in ISO 1703, under designation 1 1 01 05 0 (Form A) and designation 1 1 01 06 0 (Form B).


ISO 10102:2018

Assembly tools for screws and nuts - Double-headed open-ended engineers wrenches - Outside dimensions

ISO 10102:2018 specifies the overall length and the maximum head thickness for double-headed open-ended engineers' wrenches. NOTE The wrenches covered by this document are the ones identified in ISO 1703:2005 under reference No. 1 1 01 02 0. ISO 10102:2018 does not cover technical specifications for these products. Technical specifications are given in ISO 1711 1:2016, series C.


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