紧固件公差.第3部分:螺栓、螺钉和螺母用垫圈 产品等级为A、C和F级

[中文适用范围]： 本部分规定了用于螺栓、螺钉、垫圈和螺母连接副中的平垫圈的公差，适用于A、C和R级的产品， nominal diameters在1mm至120mm范围内。本部分可应用于非平垫圈，但不包括所有相关公差。它适用于非 captive 和 captive 垫圈，以及标准和非标准垫圈。不适用于动态盘弹簧。 [外文原描述]： ISO 4759-3:2016 specifies tolerances for flat washers of product grades A, C and F with nominal diameters of 1 mm to 150 mm inclusive, designed to be used in bolted joints in combination with bolts, screws, studs and nuts. This part of ISO 4759 may be applied to non-flat washers however it does not include all the tolerances related to these washers. It applies to non-captive and captive washers, and to standard and non-standard washers. It does not apply to dynamic disc springs. Washers of product grades F and A are intended to be used with bolts, screws, studs and nuts of product grades A and B; washers of product grade C are intended to be used with bolts, screws, studs and nuts of product grade C. NOTE The product grade refers to a specific tolerance range related to dimensional and geometrical characteristics (product grade F for fine tolerances, product grade A for precise tolerances, product grade C for large tolerances). Annex A presents tolerances taken from ISO 286‑1 and ISO 286‑2.