Everything You Need to Know About Bolts for Tools & Hardware


When it comes to Tools & Hardware, bolts are one of the most critical components. Whether you're working on a DIY project or a large-scale industrial application, choosing the right bolts can make all the difference. This guide covers everything from types and features to buying tips and common questions.


How to Find Reliable Bolts from China in 2025


China remains a leading supplier of bolts, offering competitive prices and a wide variety. To ensure quality, look for suppliers with certifications like ISO 9001. Platforms like Alibaba provide verified manufacturers with customer reviews, helping you make informed decisions.


What Buyers Should Know Before Buying Bolts from China


Before purchasing, check material specifications (e.g., stainless steel or carbon steel), threading standards, and load capacity. Always request samples to test durability. Shipping costs and lead times are also key factors to consider.


Types of Bolts


Hex Bolts: Common in construction, featuring a hexagonal head.
Carriage Bolts: Smooth, rounded head for aesthetic applications.
Lag Bolts: Heavy-duty, used in woodworking.
Eye Bolts: Designed for lifting and rigging.


Functions and Features of Bolts


Bolts are designed to fasten materials securely. Key features include corrosion resistance (e.g., galvanized or coated), tensile strength, and thread type (fine or coarse). High-grade bolts are essential for structural integrity.


Scenarios of Bolts


From assembling furniture to constructing bridges, bolts are versatile. Automotive industries rely on high-strength bolts, while electronics use miniature versions for precision.


How to Choose Bolts


Match the bolt to your project's requirements: material, size, and load-bearing capacity. For outdoor use, opt for weather-resistant coatings. Always follow manufacturer guidelines for installation.


Bolts Q & A


Q: What’s the difference between bolts and screws?
A: Bolts require nuts to fasten, while screws tap directly into materials.


Q: How do I prevent bolts from rusting?
A: Use stainless steel or coated bolts for moisture-prone environments.


Q: Can I reuse bolts?
A: It depends on the material and wear. High-stress applications often require new bolts.


Q: What’s the strongest bolt material?
A: Grade 8 or alloy steel bolts offer the highest tensile strength.


Q: How do I measure bolt size?
A: Measure the diameter (shank) and length (under the head). Thread pitch is also critical.