本标准涵盖了米制系列圆头短方颈螺栓的一般数据和尺寸数据，这些螺栓被公认为美国国家标准，主要用于薄金属。本标准中包含的尺寸数据并不意味着所述的所有尺寸都是生产库存物品。消费者应就库存生产物品清单咨询供应商。政府使用的圆头短方颈螺栓应符合本标准，此外，还应符合附录A的要求。

This Standard covers the general and dimensional data for metric series round head short square neck bolts recognized as American National Standard and intended primarily for applications in thin metals. The inclusion of dimensional data in this Standard is not intended to imply that all sizes described are production stock items. Consumers should consult with suppliers concerning lists of stock production items. Round head short square neck bolts purchased for government use shall conform to this Standard and, additionally, to the requirements of Appendix A.