SUS304 (06Cr19Ni10/S30400/1.4301) articulated bolt, also known as perforated bolt in China, follows the GB/T798-88 standard; Also known as fisheye bolt in foreign countries, it 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, white 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 mask, mining raincoat, mining explosive device, application details: articulated bolt is widely used in fields such as low-temperature and high-pressure valves, pressure pipelines, fluid engineering, petroleum drilling and production equipment, oilfield equipment, etc. It is often used in situations or tools such as the valve industry, folding bicycles, and baby strollers when disassembling connections. Due to the convenient and fast use of articulated bolts, they play a role in connecting and fastening with matching nuts, and have a wide range of applications. For valve joint bolts, sealing issues cannot be ignored, as valve running, leakage, dripping and other phenomena all come from here. Quality assurance of valve joint bolts is necessary to ensure their safety during use.
Marking example: Thread specification d=M10, nominal length l=100mm, performance grade 4.6, marking of live joint bolt without surface treatment: bolt GB 798 M10 × 1.
Shanghai Yaluo Precision Fastener Technology Co., Ltd. has been producing and supplying austenitic stainless steel fasteners for a long time A2-70、A2-80、A3-70、A4-70、A4-80、A5-80、A193 B8、SUS304、SUS316、SUS316Ti、SUS310、SUS314、SUS317、SUS321、SUS347 wait
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