China wholesale A307 Bolts Manufacturer – Fine Thread Hexagonal Bolt – Zhongli bolts Detail:
● Place of origin: Ningbo, China
● Min quantity request: 500kgs/size
● Brand Name: ZYL
● Dia: M10-M48
● Surface treatment: Black oxide, Zinc Plated,Hdg, Dacromet

GB5785


GB5786

High-strength external hexagon bolts are divided into full-threaded bolts and half-threaded bolts. Full-threaded external hexagon bolts are all threaded bolts. The difference between half-threaded external hexagon bolts and full-threaded bolts is that part of half-threaded bolts are polished rods without threads, and both of them generally need to be used with nuts.
Carbon Steel, most common seen carbon steel #45 40Cr etc.
Black oxide、Zinc Plated、dacromet
Gr8.8、 Gr10.9、Gr12.9
1. Are you a fine thread bolt manufacturer?
Yes, we are a bolt factory, manufacturer and supplier of steel structure bolts.
2. What does your company have?
We mainly produce hex bolts, hex head flange bolts, Hexagon Socket Head Cap Screws, stud bolts, hex nuts, etc.
3.How long is your delivery time for fine thread bolts?
It will be in 30-60 days according to the order quantity.
4. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment
5. why should you buy from us not from other suppliers?
Our manufacturer’s price is the most advantageous, and it is also the manufacturer with the highest product quality, appearance and cost performance.
6. Can I buy samples placing orders?
Yes.Please feel free to contact us.
Product detail pictures:





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Our company since its inception, always regards product quality as enterprise life, continuously improve production technology, improve product quality and continuously strengthen enterprise total quality management, in strict accordance with the national standard ISO 9001:2000 for China wholesale A307 Bolts Manufacturer – Fine Thread Hexagonal Bolt – Zhongli bolts, The product will supply to all over the world, such as: Denmark , USA , Slovakia , After years of development, we have formed strong ability in new product development and strict quality control system to ensure excellent quality and service. With the support of many long term cooperated customers, our products are welcomed all over the world.
By Kristin
from Nigeria
- 2017.07.28 15:46
Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
By Fay
from Sacramento
- 2018.10.01 14:14






