China wholesale ASTM A307 Grade B Heavy Hex Bolt Factory – 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 purpose is to fulfill our clients by offering golden company, great price and premium quality for China wholesale ASTM A307 Grade B Heavy Hex Bolt Factory – Fine Thread Hexagonal Bolt – Zhongli bolts, The product will supply to all over the world, such as: Czech republic , Mauritania , azerbaijan , In order to carry out our goal of "customer first and mutual benefit" in the cooperation, we establish a specialist engineering team and a sales team to supply the best service to satisfy our customers' requirements. Welcome you to cooperate with us and join us. We have been your best choice.
By Alice
from Kuala Lumpur
- 2018.12.05 13:53
This manufacturer can keep improving and perfecting products and service, it is in line with the rules of market competition, a competitive company.
By Doris
from Germany
- 2017.06.16 18:23





