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May 15, 2023The benefits and advantages of bolts after hot-dip galvanizing1. Bolts are durable after hot-dip galvanizing: in the suburban environment, the standard hot-dip galvanized anti-rust thickness can be maintained for more than 50 years without re -
May 12, 2023Why specify the mechanical properties of fasteners?1. The era when only material grades are specified In the 1950s, national standards such as GB38-58 "Technical Conditions for Bolts " and GB61-58 "Technical Conditions for Nuts " p -
May 11, 2023Matters needing attention when playing expansion screwsWith the needs of the society, the use of expansion screws is becoming more and more widely. Due to the small drilling, large pulling force, and flat exposure after use, and can be -
May 08, 2023The function and selection criteria of flat washer and spring washerWashers are one of the more important auxiliary functions of fasteners. Washers are basically used wherever fasteners are used, and they mainly play the role of increasing the cont -
Apr 14, 2023How to use expansion bolts in hollow bricksHow to use expansion bolts in hollow bricks? We all know that hollow bricks are relatively fragile, and their own bearing capacity is not enough. It is impossible to fix expansion -
Apr 13, 2023Phenomena Analysis of How to Decarburize High-strength Bolts in Heat TreatmentProcessing and production of high-strength bolts, the process is a very complex project, it is a layered and complex multi-layer process, and each process is strictly guaranteed to -
Apr 13, 2023Types and parameters of steel structure boltsSteel structure bolt is a kind of high strength bolt. Steel structural bolts are also called high-strength bolts or high-strength bolt joints. It is a new form of connection develo -
Apr 11, 2023Galvanizing, phosphating, blackening and other surface treatment processes, h...Almost all fasteners are made of carbon steel, alloy steel, general fasteners hope to prevent corrosion. In addition, the coating of the surface treatment must adhere firmly. For s -
Apr 10, 2023Properties and Classification of Stainless Steel FastenersStainless steel fasteners mainly use stainless steel wires as raw materials, and then perform a series of processes such as piercing according to the steps of producing standard pa -
Apr 07, 2023Stainless steel screw standardStainless steel hexagon socket head screws can remain stainless for many years in the atmosphere. The main materials are 304 and 316. As long as the stainless steel hexagon socket -
Apr 06, 2023Types of cylindrical pins and what are the uses of cylindrical pinsThe cylindrical pin is fixed in the hole by interference, and is used to fix parts, transmit power, or as a positioning member. Cylinder pins are basically positioning pins, which -
Apr 03, 2023Heavy Hex Bolt Specification SheetHeavy hex bolt specifications include: A193, A320 and A307B. Although A325 and A490 bolts also require heavy hex heads because these bolts have a shorter thread length than standar





