ASME B18.31.1M

Abstract

This Standard covers the complete dimensional and general data for continuous-thread and double-end metric series studs recognized as an American National Standard. The following configurations are covered: <br><em>continuous-thread stud:</em> studs that are threaded over their complete length. <br><em>double-end stud (clamping-type):</em> studs with screw threads of the same length and configuration on each end. This type of stud serves the function of clamping two bodies together with a nut on each end. <br><em>double-end stud (tap-end type):</em> a stud designed to be installed in a tapped hole and usually with different threaded lengths on each end. The tap-end studs covered by this Standard have the same thread form on each end with the length of the tap-end threads equal to approximately 1&#189; times the nominal thread diameter. <br>NOTE: Both types of double-end studs in this Standard may be installed with a nut on each end. Similarly, one end of each type may be set in a tapped hole, usually with a locking compound. <br>Double-end studs of the following body diameters are covered: <br>reduced-diameter body. See para. 6.1 for dimensions. <br>full body. See para. 6.2 for dimensions. <br>The inclusion of dimensional data in this Standard is not intended to imply that all products described are stock production items. Consumers should consult with suppliers concerning availability of products.