Share to:
sharethis sharing button

M3 M8 M3 Fasteners A4-70 Stainless Steel 304 316 A2 -80 Hex Socket Head Bolt

Product name: M3 M8 M3 Fasteners A4-70 Stainless Steel 304 316 A2 -80 Hex Socket Head Bolt
material:stainless steel 304 316
Min Order:1000PCS each size
Certificate:ISO9001: 2015
Sample: Free sample
  • DIN912

  • HINA

  • 2021121001

M3 M8 M3 Fasteners A4-70 Stainless Steel 304 316 A2 -80 Hex Socket Head Bolt

Hexagon socket screws are often used in machinery, mainly for fastening, disassembly, not easy to slip Angle and other advantages. The inner hexagon wrench is generally a 90° bend, the bend end is long and the other side is short. When using the short side to beat the screw, holding the long side can save a lot of force and better fastening the screw. The long end has a round head (hexagonal cylinder similar to a sphere) and a flat head. The round head can be conveniently disassembled diagonally, and some parts of the wrench are not convenient to install. The manufacturing cost of the outer hexagonal is much lower than the inner hexagonal, and its advantage is that the screw head (wrench force position) is thinner than the inner hexagonal, and some places are not the inner hexagonal can be replaced. In addition, the cost is low, the dynamic strength is small, the precision requirements of the machine using hexagon screw is much less than the outer hexagon.

Products name M3 M8 M3 Fasteners A4-70 Stainless Steel 304 316 A2 -80 Hex Socket Head Bolt
Material Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L ,F594
Steel Grade: DIN: Gr.4,5,6,8.8,10,;  SAE: Gr.2,5,8;  ASTM: A563

Polishing, Plain, Sand Blasting

Related products hex bolt;socket bolt;carriage bolt;T bolt
Customized Products
Lead time
Busy season:15-30days,Slack seaon:10-15days
Stock Products stainless steel:bolts and nuts
Get Free Samples for standard fastener from Jiaxing Haina Fastener
For more information visit:www.hainafastener.com

a4 stainless boltsm2 stainless steel bolts



Production Process


Our service

Professional Manufacturer : All of our Fastener are designed and manufactured according to buyers'specification and performance.

Quality is guaranteed : Durability testing and critical technical design to enhance fasteners lifetime.

Cost effective : Wide range of parts selection , Competitive prices with professional factory supply.

Customized ideal Fasteners : customized services according to the samples and drawing offered.


Through scientific management, Jiaxing Haina fastener Ltd company has been obtained ISO9000 certificate of Quality Managerment System, SGS and BV international certificate system of Make in China.


1. How do you let me trust you.

We have own import & export right, and we are gold mumber of alibaba and made in china, We get credit guarantee from Alibaba Group. You can make an order by alibaba to us directly.  

2. How about your price.  

High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.  

3. How do you control your quality.  

We request QC inspect every productions links for each bacth goods. And we can provide you MTC and mill certificate when the goods is finished.  

4. Could you provide free samples?  

For new customer, We can provide free samples for standard fastener, But the clients will pay the express charges. For old customer, We will send you free samples and pay express charges by ourself.  

5. Do you accept small order?  

Sure, we can accept any orders, we keep lots of stock for all stainless steel,carbon steel nut and bolt, like hex weld nut, cage nut, wing nut, square weld nut,Cap nut, hex nut, flange nut. Metric 8.8Grade, 10.9Grade 12.9Grade Hex bolt and hex socket cap screw, part asme hex cap screw.

6. How about your delivery time

General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days, if the quantity is more than 2 container and You are very urgent, we can let factory priority produce your goods.  

7. What is your packing.  

Our packing is 20-25kg for one carton, 36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' requestment.

8. What is your payment term

We can accept T/T, LC for general order, Paypal and Western union for small order or samples order.


Jiaxing Haina Fastener
Jiaxing Haina Fastener Co., Ltd. was founded in 2012 and is a professional fastener sales supplier. Our main products include bolts, nuts, screws, etc., with a complete range to meet the needs of different customers. We are committed to providing customers with high-quality products and services, and have won the trust and praise of our users.

Contact Us
Manager : Tonyfang
+86-186 6836 8299

  +86-0573-82272371


  1-405 No.1888 Canaan Plaza Zuili Road, Nanhu District Jiaxing City Zhejiang Province 314050

All rights reserved Jiaxing Haina Fastener Co.,Limited | Privacy Policy