2h Heavy Hex Nuts Factory Introduces The Characteristics Of Hig


    2H Heavy Hex Nuts Factory introduces the difference between high-strength bolts and general bolts:

    1. General bolts are divided into three types: A, B, and C. The first two are refined bolts, which are rarely used. Generally speaking, general bolts refer to C-grade general bolts.

    2. In some temporary connections and connections that need to be disassembled, C-level general bolts are commonly used. Common bolts commonly used in building structures are M16, M20, and M24. The diameter of crude bolts in some machinery industries may be relatively large and have special uses.

    3. The materials of high-strength bolts are different from those of ordinary bolts. High-strength bolts are generally used for permanent connections. Commonly used are M16~M30. The function of oversized high-strength bolts is unstable and should be used with caution.

    4. The bolt connection of the main components of the building structure generally adopts high-strength bolt connection.

    5. The factory-made high-strength bolts are not classified into pressure-bearing type or conflicting type.

    6. General bolts can be reused, but high-strength bolts cannot be reused.

    7. High-strength bolts are generally made of high-strength steel (45 steel (8.8s), 20MmTiB (10.9S)). They are pre-stressed bolts. For the conflicting type, use a torque wrench to apply regular prestress, and the pressure-bearing type to unscrew the plum head. General Bolts are generally made of general steel (Q235) and only need to be tightened.

    8. General bolts are generally 4.4, 4.8, 5.6 and 8.8. High-strength bolts are generally 8.8 and 10.9, of which 10.9 is the majority.

    9. The screw holes of general bolts are not necessarily larger than high-strength bolts. In fact, bolt holes are generally relatively small.

    10. Generally, the screw holes of grade A and B of bolts are generally only 0.3~0.5mm larger than bolts. C-level screw holes are generally 1.0~1.5mm larger than bolts.

    Through the above introduction, Heavy Hex Bolt Manufacturers hopes that you can simply refer to the content of this article in future use.