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High-strength bolts 8.8 10.9 12.9

High-strength bolts refer to bolted joints with high strength and high load-bearing capacity. It is characterized by its excellent tensile, compressive and shear strength of the bolt material, which can withstand high preload, ensuring the stability and reliability of the connection.

Our company can provide 300 tons of goods per month, the delivery time follows your quantity to decide in 7-30 days, the MOQ is 200 pieces, and T/T payment is acceptable

    Product advantages

    Advantages of high-strength galvanized bolts:

    1.Low processing cost of high-strength galvanized bolts: The cost of high-strength galvanized bolts is lower than that of other coatings.

    2. Durable: In the suburban environment, the standard hot-dip galvanized anti-rust thickness can be maintained for more than 50 years without maintenance; In urban areas or coastal areas, the standard hot-dip galvanized rust protection layer can be maintained for up to 20 years without maintenance.

    3. High-strength coated zinc bolts have good reliability: the galvanized layer is metallurgically combined with the steel and becomes a part of the steel surface, so the durability of the coating is relatively reliable.

    4. Strong toughness of high-strength galvanized bolt coating: The galvanized layer forms a special metallurgical industrial structure, which can withstand the damage of mechanical systems in various transportation and use management processes. 5. Comprehensive protection: Every part of the coating can be galvanized, even in the depressions, sharp corners and hidden places can be fully protected.

    substance

    Bolts with a material grade of more than 8.8 are "high-strength bolts"?
    The core difference between high-strength bolts and ordinary bolts is not the strength of the material used, but the form of force. The essence is whether or not to apply preload and use static friction to resist shear.
    In fact, there are only two types of high-strength bolts (HSFG BOLT) mentioned in the British standard and American standard specifications (BS EN 14399 / ASTM-A325 &ASTM-490) (BS EN 14399 / ASTM-A325 &ASTM-490), while ordinary bolts include 4.6, 5.6, 8.8, 10.9, 12.9, etc. (BS 3692 11 Table 2).

    Detailed Diagram

    Detailed Diagrampje