ISO 10103-2018 PDF

Full title and description

ISO 10103:2018 — Assembly tools for screws and nuts — Doubled-headed box wrenches, flat and offset — Outside dimensions and test torques. This international standard specifies outside dimensions (overall length and maximum head thickness) and the minimum test torques for double‑headed box wrenches in flat (Form B) and offset (Form A) forms.

Abstract

ISO 10103:2018 establishes dimensional limits (overall length and head thickness) and prescribes test torque values for double‑headed box wrenches (flat and offset). The document cross‑references the tool identification scheme given in ISO 1703 and refers to ISO 1711‑1 for other technical specifications and related test methods.

General information

• Status: Published (current; edition 3 confirmed in review).
• Publication date: March 2018 (Edition 3 — 2018‑03).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.140.30 (Hand‑operated tools / wrenches).
• Edition / version: Edition 3 (2018).
• Number of pages: 6 (concise technical standard).

Scope

ISO 10103:2018 applies to double‑headed box wrenches (both flat and offset types) used for assembly of screws and nuts. It defines permissible outside dimensions (overall wrench length and maximum head thickness) and specifies minimum test torques to be applied during product testing. The standard excludes other technical specifications that are given in ISO 1711‑1 and uses the tool identification system referenced in ISO 1703.

Key topics and requirements

• Definition of double‑headed box wrench forms covered (flat — Form B; offset — Form A).
• Maximum head thickness limits for specified wrench sizes.
• Overall length requirements for double‑headed box wrenches.
• Minimum test torque values and procedure references for quality verification.
• Cross‑references to ISO 1703 nomenclature and ISO 1711‑1 for related technical and test specifications.

Typical use and users

Manufacturers of hand tools (wrenches/box spanners), quality and test laboratories, product designers, procurement specialists specifying tool dimensions and test torques, and conformity assessment bodies use this standard to ensure interchangeability, safe operation and consistent quality of double‑headed box wrenches.

Related standards

Key related standards include ISO 1703 (designation and nomenclature for assembly tools including box wrenches) and ISO 1711‑1 (technical specifications and test torque formulas for assembly tools). ISO 10103 references these documents for tool identification and for other technical/test details not repeated in ISO 10103 itself.

Keywords

double‑headed box wrench, box spanner, flat wrench, offset wrench, outside dimensions, head thickness, overall length, test torque, assembly tools, ISO 10103.

FAQ

Q: What is this standard?

A: ISO 10103:2018 is an international standard that specifies outside dimensions (length and head thickness) and minimum test torque values for double‑headed box wrenches, both flat and offset forms.

Q: What does it cover?

A: It covers the dimensional limits and test torque requirements for double‑headed box wrenches used in assembly of screws and nuts; detailed technical and additional test procedures are referenced to ISO 1711‑1.

Q: Who typically uses it?

A: Tool manufacturers, product designers, procurement teams, test laboratories and conformity assessors use ISO 10103 to ensure tools meet agreed dimensional and torque test requirements.

Q: Is it current or superseded?

A: ISO 10103:2018 is the current (3rd) edition published in March 2018; the ISO bibliographic record indicates this edition was reviewed and confirmed (remains current).

Q: Is it part of a series?

A: It forms part of the family of ISO standards on assembly tools and hand tools; related documents include ISO 1703 (tool nomenclature) and ISO 1711‑1 (technical specifications and test torque guidance).

Q: What are the key keywords?

A: Double‑headed box wrench; box spanner; flat/offset wrench; outside dimensions; head thickness; overall length; test torque; assembly tools; ISO 10103.