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DIN603 M8 Round Mushroom Head Square Neck Stainless Steel Carriage Bolt Coach Bolt

Product name: DIN603 M8 Round Mushroom Head Square Neck Stainless Steel Carriage Bolt Coach Bolt
material:stainless steel 304 316
Min Order:1000PCS each size
Certificate:ISO9001: 2015
Sample: Free sample
  • DIN 603

  • HINA

  • 2021121301

DIN603 M8 Round Mushroom Head Square Neck Stainless Steel Carriage Bolt Coach Bolt

Carriage bolts are divided into large round head carriage bolts (corresponding to standards GB/T14 and DIN603) and small round head carriage bolts (corresponding to standard GB/T12-85) according to the size of the head. Carriage bolt, a type of fastener consisting of two parts, a head and a screw (cylinder with external threads), which need to be matched with a nut to fasten and connect two parts with through holes. Generally speaking, a bolt is used to connect two objects, usually through a light hole, and needs to be used in conjunction with a nut. A single bolt cannot connect. A wrench is generally used as a tool. The heads are mostly hexagonal heads, etc., generally larger. The carriage bolt is applied in the groove, and the square neck is stuck in the groove during installation, which can prevent the bolt from rotating, and the carriage bolt can move in parallel in the groove. Since the heads of the carriage bolts are round, there is no design of useful power tools such as cross grooves or hexagon sockets, and they can also play a role in preventing theft in the actual connection process. Carriage bolts are also called half-round head square neck bolts. The head is a half-round head and the bottom is a square neck.

Products name DIN603 M8 Round Mushroom Head Square Neck Stainless Steel Carriage Bolt Coach 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

stainless coach 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.

DIN603 carriage bolt

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.

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Manager : Tonyfang
+86-186 6836 8299

  +86-0573-82272371


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