Heavy Hex Jam Nut

In order to extend the service life, heavy hex jam nut need to be coated with hot dip galvanizing (outdoor use), electric galvanizing (indoor corrosion resistance) or oxidized black (aesthetic and light protection). These finishes ensure that Heavy hex jam nut work reliably in wet, acidic or high friction environments. Custom finishes, such as passivated stainless steel, further extend durability without affecting the wrench friendly hexagonal edge of the nut.

Details and parameters

Stainless steel heavy hex jam nuts (grade 316) are ideal for coastal or chemically heavy environments because of their molybdenum enhanced rust protection. Galvanized carbon steel variants provide budget-friendly moisture protection. In order to maximize service life, these hex jam nuts are used in combination with anti-latch lubricants in high salinity or acidic environments. Regular inspection and cleaning with a mild solvent prevents debris buildup, which accelerates corrosion. Unlike square nuts, heavy hex jam nuts have a flat surface and are easy to maintain under corrosive conditions.

FAQ

Q: Is the heavy hex jam nut of the same material more corrosion-resistant than the nut?

A: Corrosion resistance depends on the material and coating, not the shape. Heavy hex jam nut and square nuts made of stainless steel (304/316) or galvanized carbon steel provide the same protection. However, the gaps of the hex jam nut may absorb moisture if they are not coated, while the flat surfaces of square nuts are easier to clean. For harsh environments, use heavy hex jam nut or square nuts covered by hot-dip galvanized coating. The brass variants of these two nuts are also resistant to discoloration, but are suitable for low pressure applications.

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