Model NO.: M4-M64
Application: Machinery, Chemical Industry, Environmental, Building
Finish: Hot Galvanizing
Finally Finish: Blue-White Zinc Plated
Trademark: HighFly Fastener
Transport Package: Carton Packing and Our Standard Package
Specification: M3X5-M6 M8 M15 M20 M25
Origin: China
HS Code: 7318159090
Product Description
Stainless Steel Bolts SS316/SS316L
1. Standard: ISO, DIN, ANSI, JIS, BS.
2. Grade: A2 and A4
3. Marking: Customized according to customer requirements
4. Size: M6-M52
5. Finish: Passivated
6. Material: Stainless steel
7. Delivery Time: Typically 30-40 days
8. Quality: High quality products
9. Packaging: Cartons & pallets or as per customer request.


Bolts in Different Types:
Materials: | Carbon steel, Alloy steel, Stainless steel, Plastic, and Copper. |
Surface Treatment: | Plain, Black, Zinc Plated (ZP), Yellow Zinc Plated (YZP), Hot DIP Galvanizing (H.D.G.), Dacromet, Nickel Plated, Brass Plated. |
Grades: | 4.8, 5.8, 8.8, 10.9, 12.9, 2, 5, 8, A307, A325. |
Standards: | DIN, BSW, JIS, ASME and ANSI, Non-standard, Custom Drawing. |
Thread: | Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF. |
Sizes: | M3X5-M100X1000, 1/8X1/4 - to 4X40 inches. |
Packing: | Small box/Carton, Cartons Bulk/Pallet, Gunny Bag. |
Top quality bolts (cap screws) supplied, including hex bolts, flange bolts, carriage bolts, coach bolts, and non-standard bolts.




Qingdao Hengfei Fastener Co., Ltd
Established in 2001, located in Ruian City, Zhejiang Province. We specialize in the production of nuts, bolts, screws, and washers. Our factory covers more than 50 acres and employs over 200 people. In China, we have long-term and stable partnerships with companies such as Haier Group, Beijing Automotive Group, and SGMW WuLing Group. To date, we have exported our products to Europe, the United States, Russia, Southeast Asia, the Middle East, Africa, and many other regions. We have imported advanced foreign technology and equipment, including 18 multi-station cold heading machines, 38 automatic double-head tapping machines, 5 automatic punching machines, 6 automatic CNC lathes, 2 sets of multi-station cleaning anti-rust oil systems, 2 sets of infrared camera inspection systems, and 4 sets of bolt reeling machines. We also have an export office in Qingdao, named Qingdao Hengfei Trade Co., Ltd. Welcome to visit our factory. We are committed to providing high-quality products and excellent service to our customers!
Q: Are you a trading company or a manufacturer?
A: We are a manufacturer.
We also operate an independent foreign trade department in Qingdao City.
Q: What is your delivery time?
A: Generally, it takes 5-10 days if the goods are in stock. If not in stock, it usually takes 15-20 days, depending on the order quantity.
Q: Do you provide samples? Is it free or paid?
A: Yes, we can offer samples for free, but the shipping cost will be borne by the customer.
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