BS ISO 4229:2017规定了标称宽度为3.2至120的单头工程师扳手的要求。它规定了磁头的最大外部尺寸，并给出了测试扭矩值。“较低扭矩应用”的名称与较小的头部尺寸一致。注:本文件涵盖的扳手是ISO 1703:2005中参考号1 01 0和1 01 1中确定的扳手。交叉引用:ISO 1711-1:2016ISO 691:2005（R09）Ed 4 ISO 1703:2005ISO 272购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS ISO 4229:2017 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.Cross References:ISO 1711-1:2016ISO 691:2005 (R09) Ed 4 ISO 1703:2005ISO 272All current amendments available at time of purchase are included with the purchase of this document.