Factors to Consider when Select the Right China Threaded Rod

  • Release date:16-02-2017
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    Din975 threaded rod is a type of metal fastener with th […]

    Din975 threaded rod is a type of metal fastener with threads cut into both ends. These rods resemble the shank of a screw, yet tend to be longer and thicker than a standard screw. Threaded rods do not have heads or washers like those found on a screw on bolt, and tend to be the same diameter along their entire length. Depending on the model, a threaded rod may feature threads along the entire length, or simply at either end. This product is sometimes known as all-thread, and can also be referred to simply as a stud.

    For studs that are not completely threaded, there are two types of studs: full-bodied studs, and undercut studs. Full-bodied studs have a shank equal to the major diameter of the thread. Undercutstuds have a shank equal to the pitch diameter of the screw thread. Undercut studs are designed to better distribute axial stresses. In a full-bodied stud the stresses are greater in the threads than in the shank.

    Undercut studs are also stronger because the metal is "rolled" up to the major diameter, not removed. This preserves the grain of the steel, and in some cases even enhances it. Full bodied studs are weaker because metal is removed to create the thread, disturbing the grain of the steel.

    Undercut studs are only required in applications where the stud is exposed to fatigue. Cut threads are entirely suitable for many applications, even when rolled threads might be slightly stronger. Mass-produced fasteners are usually rolled, but jobbed parts with custom features and small lot sizes are likely to be cut.

    Threaded rods can be used for in many industries for many different applications. A few of these applications are:

    For use with most standard size fasteners

    Can be used in repairs and to secure parts together

    Manufacturing, automotive and construction industries

    Electrical and plumbing purposes

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    When choosing China thread, buyers must consider a number of factors to select the right product for the job. One of the most important decisions is the type of material each rod is made from. Standard steel or aluminum rods represent the most popular options, with stainless steel varieties generally reserved for outdoor applications or corrosive environments. High-strength rods may be needed to support heavy loads, and brass or zinc studs may be used to enhance visual appeal on certain types of projects.