In modern industrial manufacturing, from outdoor communications cabinets to ship bulkheads, from food processing equipment to chemical pipe supports, metal structures are often exposed to moisture, salt spray, rain, and even chemical corrosion.
Stress relief annealing effectively reduces the hydrogen embrittlement sensitivity of rectangular nuts by precisely controlling temperature, time, and cooling methods.
With its unique threaded structure at both ends, double-head screws overcome the assembly limitations of traditional bolts, offering the combined advantages of strong spatial adaptability.
Although hot-dip galvanizing can form a dense zinc-iron alloy layer with significantly better corrosion resistance than electroplating, the coating thickness is relatively large and can easily cause thread fit problems.
Double-head screws are widely used in mechanical equipment due to their unique advantages in structural adaptability, load-bearing performance, ease of maintenance, and environmental adaptability.
Rectangular nuts, due to their unique shape and installation method, offer significant advantages for fastening in narrow or confined spaces, often becoming a superior alternative to hexagonal nuts.