BS ISO 10104:2018 pdf download

BS ISO 10104:2018 pdf download

BS ISO 10104:2018 pdf download.Assembly tools for screws and nuts — Double-headed box wrenches, deep offset and modified offset — Outside dimensions
1 Scope
This document 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.
This document does not cover technical specifications for these products. Technical specifications are given in ISO 1711-1:2016, series A.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 691, Assembly tools for screws and nuts — Wrench and socket openings — Tolerances for general use
ISO 3318, Assembly tools for screws and nuts — Open-ended wrenches, box wrenches and combination wrenches — Maximum widths of heads
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at
— IEC Electropedia: available at
5 Designation
A double-headed box wrench in accordance with this document shall be designated by:
a) “wrench”;
b) a reference to this document, i.e. ISO 10104;
c) Form, i.e. A or B;
d) pairing according to Table 1.
EXAMPLE A double-headed, deep offset (Form B) box wrench with the pairing s 1 × s 2 = 13 × 15 is designated as follows:Wrench ISO 10104, B 13 × 15
6 Marking
Double-headed box wrenches, deep offset and modified offset, shall be marked, permanently and legibly, with at least the following:
a) nominal widths across flats;
b) name or trademark of the manufacturer (or the responsible supplier).