High-strength Bolt

Need bolts that can handle heavy loads and stay tight? Our high-strength bolts are your go-to. Perfect for steel structures, machinery, automotive parts, and wind turbines, they deliver unbeatable clamping force—no loosening, no breaking, even in harsh working conditions, keeping your equipment and projects secure.

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Need bolts that can handle heavy loads and stay tight? Our high-strength bolts are your go-to. Perfect for steel structures, machinery, automotive parts, and wind turbines, they deliver unbeatable clamping force-no loosening, no breaking, even in harsh working conditions, keeping your equipment and projects secure.

Key Features & Material:

Crafted from premium alloy steels-40Cr for general heavy-duty use, 35CrMoA for extreme loads. Undergoes quenching and tempering heat treatment for enhanced strength. Surface options: hot-dip galvanizing (anti-rust) or black oxide (wear-resistant). Equipped with precision threads for easy installation and tight fitting.

Parameter	Specification
Size	M8-M64 (customizable length)
Material	40Cr / 35CrMoA / SCM435
Tensile Strength	≥800MPa (40Cr); ≥1000MPa (35CrMoA)
Hardness	HRC 33-39
Surface Treatment	Hot-Dip Galvanizing / Black Oxide

Advantages:

2x stronger than standard bolts-handles heavy vibration and loads. Anti-fatigue design ensures long service life (10+ years). Corrosion-resistant surface works in wet/industrial environments. Precision threads reduce installation time by 30%. Compatible with most standard nuts and wrenches.

Services:

Custom size/material matching; material strength testing (tensile/compression); thread precision calibration; technical support for installation; 2-year warranty against manufacturing defects.