China wholesale Gr4.8 Hex Bolt Exporter – New arrival 2023 high tensile Fine thread hex bolt DIN960 Black Grade 10.9 black – Zhongli bolts

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We can always satisfy our respected customers with our good quality, good price and good service due to we are more professional and more hard-working and do it in cost-effective way for 8.8/10.9/12.9 Hex Socket Screws , Double Ends Thread B7 Stud Bolt , Double Head Bolts A193 B7 (42crmo) , Our business has been devoting that "customer first" and committed to helping shoppers expand their small business, so that they become the Big Boss !

China wholesale Gr4.8 Hex Bolt Exporter – New arrival 2023 high tensile Fine thread hex bolt DIN960 Black Grade 10.9 black – Zhongli bolts Detail:

●Product name: hex bolts DIN960
●Standard: DIN standard
● Finish: Black oxide,Zinc plated,hdg
● Dimension: from M10 to M36
● Length: 20mm-300mm
● Material: 40Cr,35CrMo
● Grade: 10.9
● Packing: Cartons+plastic Bag
● Delivery time: 30-60 days

The hardness after heat treatment is about HRC33-38.
The yield ratio of bolt material is 0.9
The nominal tensile strength of bolt material reaches 1000MPa.
The nominal yield strength of bolt material reaches 1000 × 0.9=900MPa

1.What’s the difference between fine thread and coarse thread?
1):The pitch of coarse teeth is large, but that of fine teeth is small. 2): The strength of coarse teeth is high, and the fine teeth are well sealed. 3): The thread of coarse teeth has stronger anti-fatigue ability, which is convenient for frequent disassembly, and the fine teeth have strong self-locking ability, large bottom diameter and strong static load capacity.
2.What is the difference between fine teeth and coarse teeth in application?
Fine-threaded and coarse-threaded screws are used for fastening. Fine-threaded screws are generally used to lock thin-walled parts and parts that require high vibration resistance.
3.why should you buy from us not from other suppliers?
We have more than 19 years of fastener production experience, and we have professional pre-sales and after-sales teams.
4.What about the warranty?
We are very confident in our products, and we package them well to ensure that the goods are well protected. To avoid any subsequent troubles related to quality problems, we suggest that you check the goods after you receive them. If there is any transportation damage or quality problem, don’t forget to take a detailed picture and contact us as soon as possible, and we will handle it properly to ensure that your loss is reduced to a minimum.

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Responsible excellent and fantastic credit rating standing are our principles, which will help us at a top-ranking position. Adhering towards the tenet of "quality initial, buyer supreme" for China wholesale Gr4.8 Hex Bolt Exporter – New arrival 2023 high tensile Fine thread hex bolt DIN960 Black Grade 10.9 black – Zhongli bolts, The product will supply to all over the world, such as: Myanmar , Albania , Juventus , Our company offers the full range from pre-sales to after-sales service, from product development to audit the use of maintenance, based on strong technical strength, superior product performance, reasonable prices and perfect service, we'll continue to develop, to deliver the high-quality items and services, and promote lasting cooperation with our customers, common development and create a better future.

8.8/10.9/12.9 Hex Bolts