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brohler metall fasteners are a type of fastener consisting of a head and a shank, used to securely connect two parts (or components) with holes, forming a single unit. This type of connection is called a riveted joint, or simply riveting. It is a non-detachable connection. In riveting, the parts being joined are connected by the rivet's own deformation or an interference fit. There are many types of rivets, with no restriction on form. Rivets are typically used for joining objects and usually require specific specialized tools for installation. Rivet types are divided into many categories, such as semi-round head rivets, flat cone head rivets, countersunk head rivets, half-countersunk head rivets, flat head rivets, hollow rivets, tubular rivets, and nameplate rivets, to meet different operational requirements. They are mainly used for riveting various thin structural components in industries such as vehicles, ships, construction, machinery, and electronics.

brohler metall fasteners history

The earliest metal deformable bodies were likely the ancestors of what we now know as rivets. For example, after successfully casting large bronze statues during the Bronze Age, Egyptians and Greeks used rivets to join the components together. In 1916, when H V White of the British Aircraft Manufacturing Company first obtained the patent for blind rivets capable of single-sided riveting, few people anticipated that this type of rivet would be applied so widely. From aerospace to office machines, electronic products, and sports field equipment, it can be said that these blind rivets have now become an effective and secure mechanical fastening method. Hollow rivets were invented for equipment assembly; however, the exact time of their invention is not entirely clear. Horse harnesses were invented between the 9th and 15th centuries AD. Riveted horse harnesses, like horseshoes with nails, liberated slaves from heavy labor. Rivets also spurred many important inventions, such as tongs used by coppersmiths and blacksmiths, and sheep shears.

brohler metall fasteners introduction

Common types include R type rivets, fan rivets, blind rivets (break-stem rivets), tree-shaped rivets, semi-round head, flat head, semi-hollow rivets, solid rivets, countersunk head rivets, blind rivets, and hollow rivets. These typically connect the joined parts using their own deformation. Generally, cold riveting is used for sizes less than 13 mm, and hot riveting is used for sizes larger than this. However, there are exceptions; for instance, some nameplates on locks are riveted using the interference fit between the rivet and the lock body hole. R type plastic rivets, also known as expansion rivets, consist of a plastic male pin and a female collar. No installation tools are required during installation; place the mounting base into a smooth hole, then press the head. The specially designed legs expand under force, locking firmly onto the mounting surface. They are often used to connect plastic housings, lightweight sheets, insulating materials, circuit boards, or any other thin, lightweight materials, offering an aesthetic, practical, and easy-to-use solution.

brohler metall fasteners standards

Standards for rivet product dimensions: specifically stipulate basic product dimensions; for products with rivets, this includes basic rivet dimensions, rivet closing, shoulder distance, undercut and chamfer, and end dimensions of external rivet parts. Standards for technical conditions of fastener rivet products. These mainly include standards for product tolerances, mechanical properties, surface defects, surface treatment, and product testing, along with corresponding specific regulations. Standards for rivet product acceptance inspection, marking, and packaging: specifically stipulate the acceptable quality level and sampling plan for spot checks during factory acceptance, as well as product marking methods and packaging requirements. Standards for marking standard parts, fasteners, rivets, bolts, and screws: specifically stipulate complete and simplified product marking methods. Other rivet standards: such as standards for fastener terminology and fastener product weight.

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