schumag fasteners Germany schumag models schumag prices

schumag fasteners feature internal threaded holes. They are generally flat hexagonal prisms, but can also be flat square prisms or flat cylindrical shapes. Used with bolts, studs, or machine screws to securely connect two parts into a single unit. Nuts operate by self-locking through friction between the nut and bolt. However, the reliability of this self-locking decreases under dynamic loads. In critical applications, anti-loosening measures are taken to ensure reliable nut locking. As an essential component for all manufacturing machinery, they are classified by material into carbon steel, stainless steel, and non-ferrous metals (such as copper). Each part has interlocking cams. Due to the internal wedge design, the slope angle is greater than the bolt's thread angle, causing the combination to bite tightly into a whole. When vibration occurs, lifting tension is generated.

schumag fastener applications

Locking straight-thread external connectors or other pipe fittings. Nuts operate by self-locking through friction between the nut and bolt. However, the reliability of this self-locking decreases under dynamic loads. In critical applications, anti-loosening measures are taken to ensure reliable nut locking. Specialized lock nuts are not hexagonal nuts, but round nuts with 3, 4, 6, or 8 slots on the circumference (varying by nut size and manufacturer product series). These slots serve as contact points for tightening tools and as engagement points for locking washers. The third type has through-threaded holes drilled from the outer circular surface to the inner threaded surface (generally 2 holes, distributed at 100 intervals on the outer surface) for inserting small-diameter countersunk screws. The purpose is to apply a centripetal force to the threads to prevent the lock nut from loosening.

schumag fastener standards

Product dimension standards: Specifically stipulate basic product dimensions; for threaded products, this includes basic thread dimensions, thread run-out, shoulder distance, undercut, chamfer, and end dimensions of external thread parts. Fastener product technical condition standards. Mainly include standards for product tolerances, mechanical properties, surface defects, surface treatment, and product testing, along with corresponding specific regulations. Standard marking methods for standard parts, fasteners, bolts, and screws: Specifically stipulate complete and simplified product marking methods. High-strength threaded fastener production process: Raw material reforming, cold heading forming, thread processing (rolling or threading), heat treatment, surface treatment, sorting, and packaging.

schumag fasteners widely used

A class of mechanical parts used for fastening connections with extremely wide application. Characteristics include a wide variety of specifications, diverse performance and uses, and a high degree of standardization, serialization, and generalization. Therefore, some refer to fasteners with national standards as standard fasteners, or simply standard parts. This promotes further industry development. Innovation and adjustment transformation must be maintained, relying closely on new energy, aerospace, shipbuilding, electronics and electrical appliances, automotive industry (sedans, trucks, buses), compressors, construction machinery, wind power equipment, agricultural machinery, casting industry, drilling equipment, shipbuilding industry, mining equipment, oil drilling rigs (onshore or offshore), public utilities, rail transit, transmission systems, metallurgical equipment, and rock drills. Accelerate the optimization and upgrading of fastener products to promote the healthy and steady development of the entire fastener industry.

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