In this section, a bolt axial force detection system based on ultrasonic surface waves is established. The transmitted signal energy of the surface waves can be used to detect the bolt axial force, and the attenuation of the bolt axial force can be monitored online by using the surface wave energy d

The stainless steel bolt encountered water condensing in the air. Pollution means they contain a lot of sulfide or carbon monoxide. When they come into contact with water, they form sulfuric acid and hydroxide, which chemically corrode stainless steel bolts. Stainless steel bolts rust because the pr

Material requirements for boltsPerformance levelMaterials and Heat treatmentChemical compositionTempering temperatureCPSB 1)℃minmaxmaxmaxmaxMin3.6 2)Carbon steel一一0.20.050.060.003一一4.6 2)一一0.550.050.060.003一一4.8 2)5.60.130.550.050.060.003一一5.8 2)一一0.550.050.066.8 2)6.8 2)Low carbon alloy steels (suc

DIN 582 Eye BoltSIZEA （mm）B （mm）C （mm）D （mm）E （mm）Package (Pcs/Bag)Approx.Weight (Kg/1000Pcs)AISI 304 Cost (RMB/Pcs)AISI 316 Cost (RMB/Pcs)M512.20 22.10 21.70 11.70 4.95 100 9.20 2.00 2.60 M616.42 27.00 29.60 16.00 5.36 100 19.8

Bolts grade, strength distinction and tighteningStrength to distinguish4.85.66.87.68.810.912.9Minimum breaking strength40kg/mm250kg/mm260kg/mm270kg/mm2800kg/mm2100kg/mm2120kg/mm2The material45#35#40chromiumAlloy steel (hot)Chromium-molybdenum alloy steel (hot)Ni-cr-mo alloy steel (hot)Ni-cr-mo alloy

螺纹规格 Thread SpecificationM5M6M8M10M12M14M16M18M20M22M24p牙距 Tooth Spacing0.811.251.51.75222.52.52.53S对边 公称 Opposite Nominal810131719222427303236 K头厚 公称 Thick Head Nominal3.545.36.47.58.81011.512.51415