Stainless steel extended joint bolt

    Stainless steel extended joint bolt, also known as perforated bolt in China, follows the GB/T798-88 standard; foreign also known as fisheye bolt, follows the DIN444 standard. Refined hole bolt, with a smooth spherical surface and high thread accuracy, with thread specifications ranging from M6 to M64. The surface treatment of active joint bolts includes anti-corrosion measures such as hot-dip galvanizing, infiltration plating, self plating, and color plating. The factory color of high-strength bolts is boiled black orchid, and the materials include: Q235、45#、40Cr、35CrMoA、 Stainless steel 304 and stainless steel 316, etc.       Application projects: Filter type self rescue device, gas detection instrument, dust-proof port, mining raincoat, mining explosive device, application details: Stainless steel extended joint bolt is widely used in fields such as low-temperature and high-pressure wide doors, pressure pipelines, fluid engineering, petroleum drillin…