SAEJ1199公制外螺纹钢制紧固件机械性能与材料要求中文版全解.doc

Mechanical and Material Requirements for Metric?Externally Threaded Steel Fasteners 公制外螺纹钢制紧固件机械性能与材料要求 Scope 范围 1.1 This SAE Standard covers the mechanical and material requirements for eight property classes of steel, externally threaded metric fasteners in sizes M1.6 through M36, inclusive, and suitable for use in automotive and related applications. 本SAE 标准涵盖汽车及相关工业使用，尺寸在M1.6到M36钢铁外螺纹紧固件的八个性能等级的机械性能与材料要求。 1.2 Products included are bolts, screws, studs, U-bolts, preassembled screw and washer assemblies (sems), and products manufactured the same as sems except without washer. 产品包括：螺栓、螺钉、螺柱、U型螺栓、预装配的螺钉和垫片组件以及与预装配组件一样加工的无垫圈产品。 1.3 Products not covered are tapping screws, thread-rolling screws, and self-drilling screws.?Mechanical and material requirements for these products are covered in other SAE documents. 产品不包括自攻螺钉、自挤螺钉、钻尾螺钉。这些产品的机械性能与材料要求包含在SAE另外的标准中。 1.4 The term stud as referred to herein, applies to a cylindrical rod of moderate length, threaded on either one or?both ends or throughout its entire length.?It does not apply to headed, collared, or similar products which are?more closely characterized by requirements shown herein for bolts. 螺柱这里是指适用于中等长度圆柱杆，螺纹在一端有或两端都有，或全螺纹的产品。它并不适用于有头的、带定位的或类似于本文中所要求的螺栓特性近似的产品。 1.5 For specification purposes, this document treats U-bolts as studs.?Thus, wherever the word studs appears, U-bolts is also implied.?U-bolts covered by this document are those used primarily in the suspension and related areas of vehicles.?(Designers should recognize that the U configuration may not sustain a load equivalent to two bolts or studs of the same size and grade; thus actual load-carrying capacity of U-bolts should be determined by saddle load tests.) 为了规范，本标准将U型螺栓是为螺柱。因此，本文中涉及到的螺柱要求，U型螺栓同样适用。本文所提及的U型螺栓是使用于车辆悬挂位置或相关位置的产品。（设计者应了解到同样尺寸、等级的U型螺栓与两个螺栓或螺柱的载荷是不相等的，因此，U 型螺栓的实际承载应以鞍型荷重测试方法来判定。 2 References 参考资料 2.1 Applicable Publications — The following publications form a part of this specification to the extent specified