anker flexco fasteners Germany anker flexco models anker flexco prices

anker flexco fastener studs are a type of fastener used in sheet metal, thin plates, chassis, and cabinets. During connection, one end must be screwed into a part with an internal threaded hole, while the other end passes through a part with a through-hole, and then a nut is tightened, firmly connecting these two parts into a single unit. This type of connection is called a stud connection and is also a detachable connection, primarily used when one of the connected parts has greater thickness, requires a compact structure, or involves frequent disassembly, making bolt connections unsuitable. The press-fit nut stud has a hexagonal shape at one end and a cylindrical shape at the other, with an undercut groove between the hexagonal section and the cylindrical section. Its interior features internal threads. By using a press to insert the hexagonal head into a pre-drilled hole in the thin plate, plastic deformation occurs around the hole, and the deformed material is squeezed into the undercut groove of the press-fit nut stud, securing it tightly to the thin plate and forming an effectively fixed internal thread on the thin plate.

anker flexco fastener applications

A stud refers to a cylindrical fastener with threads on both ends. It is used in large equipment as the main body where accessories such as sight glasses, mechanical seal seats, and gearbox frames need to be installed. In such cases, one end of the stud is screwed into the main body, and after installing the accessory, a nut is attached to the other end. Studs are used when the thickness of the connected bodies is substantial, and double-ended bolts serve the purpose of preventing loosening. In actual work, external loads such as vibration, changes, and high-temperature creep of materials can reduce friction, causing the normal pressure in the threaded pair to disappear momentarily, resulting in zero friction and thus loosening of the threaded connection. If this happens repeatedly, the threaded connection will become loose and fail. Therefore, anti-loosening measures must be taken. Studs are applied in different usage environments and are widely used in power, chemical, refining, valve, railway, bridge, steel structure, automotive and motorcycle parts, machinery, boiler steel structures, tower cranes, large-span steel structures, and large buildings.

anker flexco fastener installation

Stud welding saves time and costs. All structural connections eliminate the need for drilling, punching, threading, riveting, tapping, and finishing steps, continuously expanding the application potential of structural design. It features high current and shallow penetration depth, allowing welding onto very thin sheets. Stud welding workpieces must be welded from one side. It supports all-position welding; with an extension tool, it can be applied to restricted vertical partitions. Due to the short welding time and minimal post-weld deformation, no finishing is required. Since the welded structure does not require drilling, leakage is prevented. The joint achieves high strength, meaning the joint strength of stud welding exceeds the strength of the stud itself. How to install double-ended studs: Good economic efficiency. An advantage over other welding methods lies in the welding power. For mass-produced workpieces, standard studs are low-cost, and stud welding offers high quality reproducibility and a low scrap rate.

anker flexco fastener maintenance

During each maintenance operation, inspect the newly replaced studs and other newly replaced accessories. Focus the inspection on the head and guide portion of the stud. Strictly check every part of the thread for cracks or dents, and examine the stud's thread profile for any changes. Check for abnormal pitch; if any abnormalities occur, the stud must not be used. When installing the connecting rod cap, use a torque wrench. Tighten according to the specified standards; the torque must not be excessive or insufficient. Also, pay attention to selecting bolts and studs from matching manufacturers. Therefore, routine maintenance of studs is necessary. Problems may arise under prolonged mechanical friction. When issues occur, remove the engine oil pan and carefully inspect the condition of the engine bearings. Check whether the clearance between the bearings is excessive; if the clearance is too large, replace them promptly.

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