Stainless Steel Round Nuts Manufacturers

Does the Round Nut of Jiangsu Jiajie Special Screw Co., Ltd.'s Stainless Steel Round Nuts Have a Locking Function?

In the world of industrial fasteners, the smallest components often play the most critical roles. Stainless steel round nuts—frequently overlooked, yet fundamentally important—serve as pivotal elements in securing components across high-demand sectors. But beyond their elegant geometry and robust construction, a recurring question persists: Do Jiangsu Jiajie Special Screw Co., Ltd.’s DIN 981 Round Nuts offer a locking function?The answer lies in their engineering, and more importantly, in the vision behind their manufacture.

A Deeper Look at Round Nut Functionality
Round nuts are typically characterized by their cylindrical profile, smooth edges, and clean symmetry. Unlike hex nuts, they lack angular flats—meaning they are not tightened with a wrench in the traditional sense. Instead, they’re often used in specialty assemblies, where appearance, tamper-resistance, or space limitations make them ideal. However, the key concern remains: can they lock?

The truth is, locking capability is not an inherent trait of all round nuts. It must be engineered into the design—either via serrations, internal deformations, nylon inserts, or pairing with locking washers. Jiangsu Jiajie’s stainless steel round nuts, particularly those used in welding applications, are manufactured with this in mind. When the situation demands it, locking functionality is integrated, either through mechanical interference or material pairing strategies.

In critical assemblies—especially where vibration, torque, and environmental stress converge—reliability is paramount. This is where Jiangsu Jiajie distinguishes itself.

The Powerhouse Behind the Precision
Founded in 2008, Jiangsu Jiajie Special Screw Co., Ltd. stands as a commanding figure in China’s stainless steel fastener industry. With 60,000 square meters of combined production space in Dainan Town—widely hailed as the stainless steel capital of China—Jiajie has transformed stainless steel craftsmanship into an industrial art form.

Armed with a registered capital of 50 million yuan and an annual production capacity exceeding 80,000 tons, the company delivers precision fasteners that power everything from photovoltaic energy systems to marine engineering, rail transit, and heavy industrial machinery.

Jiajie’s product line features a spectrum of high-performance components: external and internal hex screws, tapping and machine screws, washers, custom flanges, pipe fittings, and an impressive array of stainless steel nuts—including the widely used DIN 928 welding nuts. Crafted from superior stainless steel grades such as SUS301, SUS304, and SUS316, each product meets or exceeds GB, DIN, and ISO standards, ensuring optimal durability and corrosion resistance.

Welding Nuts and Locking Stability
When it comes to welding nuts, the locking function is not optional—it’s essential. Jiajie’s stainless steel welding nuts are specifically engineered to withstand extreme loads and resist loosening under vibration. Once welded in place, they serve as a secure foundation for bolts and screws, offering unwavering connection strength.

And yes, certain variants of Jiajie's DIN 981 Round Nuts do feature enhanced locking characteristics, especially when designed for precision welding contexts. These include specialized geometries that promote torque resistance, fine threading for frictional locking, and materials engineered to expand minimally under heat—delivering steadfast performance even in thermally volatile environments.

So, do Jiangsu Jiajie’s stainless steel round nuts have a locking function? They absolutely can—if the application demands it.

By aligning design intent with material science, and by tailoring every fastener to meet the nuanced needs of modern industry, Jiangsu Jiajie ensures that each round nut—no matter how unassuming—plays its part with unwavering precision. For projects that can’t afford compromise, these are more than just nuts; they’re solutions, built to endure.