8mm Round Head Square Neck Carriage Bolt Shallow Dome Plain Unthreaded Shank

High Quality Carbon Steel DIN 603 Zinc Plated Round Head Square Neck Bolt Carriage Bolts M10, M12

Product Description:

A carriage bolt, coach bolt or round head square neck bolt is a form of bolt used to fasten metal to wood.

It is distinguished from other bolts by its shallow mushroom head and that the shank cross-section of the bolt is circular for most of its length, as usual, but the portion immediately beneath the head is formed into a square section. This makes the bolt self-locking when placed through a square hole in a metal strap, or a round hole in most wood. This allows the fastener to be installed with only a single tool, a spanner or wrench, working from one side. The head of a carriage bolt is usually a shallow dome. The squared section is of the same size as the diameter of the bolt shank, with a plain unthreaded shank.

Carriage bolts were developed for use through iron strengthening plates on either side of a wooden beam, the squared section fitting into a square hole in the ironwork. It is commonplace though to use them to bare timber, the squared section giving enough grip to prevent rotation.
Carriage bolts are extensively used for security fixings, such as locks and hinges, where the bolt must only be removable from one side. The smooth domed head and square nut below prevent the carriage bolt from being unlocked from the insecure side.

Carriage bolts is also called round head mushroom head square neck screws, mushroom head square neck screws, and round head square neck coach bolt, plow bolt, carriage bolt for timber.

Carriage bolts are largely used in security fixings, such as the Brenton Bolt where the bolt must only be removable from one side. The smooth domed head and square nut below prevent the carriage bolt from being unlocked from the insecure side

Specification:

1. Product name: High Quality Carbon Steel DIN 603 Zinc Plated Round Head Square Neck Bolt Carriage Bolts M10, M12
2. Standard: DIN, ANSI, JIS,IFI, non-standard
3. Materail: Q195,35#,45#,SS304,SS316
4. Surface: zinc plated, blacken, yellow zinc plated, HDG, dacromet
5. Garde: 4.8,5.8,6.8, 8.8,10.9
6. Shape: round head, square head, Square Neck, half round head
7. Package: plastic bag+carton+pallet
8. Payment Terms: T/T, L/C
9. Port : Shanghai, Ningbo, Zhapu

Application:

Fastener is a kind of mechanical parts, which is used for fastening connection and is widely used. Carriage bolt are widely used in industries, including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, mold, hydraulic industry and so on, in all kinds of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies and so on, can see every kind of fasteners. Is the most widely used basic pieces of machinery. It is characterized by a wide variety of specifications, the performance of different purposes, and the standardization, serialization.

Advantages:

1. Good after sales service. Any small problem happening will be solved at the most prompt time;
2. Many years of export experience;
3. Specifications list is available upon your request
4. Welcome to send enquiry, we will reply soon.
5. Prompt shipment with professional documents
6. Custom packing, with photo before shipment
7. High quality and competitive price.

Haiyan Juxing Trading Co., Ltd (Haiyan Julong) is a specialist engaged in fastener production, trade in services integrated enterprise, the company relies on abundant capital strength, the scale of production, perfect marketing network and quality service, has won the praise of customers at domestic and abroad in recent years

We in terms of threaded rod (threaded bar) of article marketing has a wealth of production experience, can provide a variety of specifications (DIN M3 to M64, BSW and UNC 3/16” to2”, etc.), a variety of material (carbon steel, stainless steel 304, 304, copper, etc.), a variety of grades (DIN 4.8, 8.8, 10.9, 12.9, etc.) products, the monthly output of 500 tons - 1000 tons. Company registered JULILONG brand, make high quality threaded rod .

We also sells Nuts, Washers, Bolts， Drywall Screws, Anchor and so on, including DIN, ISO, GB and ASME/ANSI, BS, JIS AS. Main grades of carbon steel :4.8, 5.8, 6.8, 8.8, 10.9, 12.9, the main material is stainless steel SS201, SS304, SS316 and various special stainless steel.

We advanced wire drawing to streamline type (SBP) at domestic and abroad in recent years, super convection line, annealing furnace and other production equipment, the introduction of advanced environmental protection pickling, phosphating, saponification production lines, equipped with perfect testing equipment; use the advanced craft and technology, specializing in the production of high quality cold heading wire and high carbon steel, alloy wire, for hardware, automotive, machinery and other industries to provide quality of fine lines and other material products.

Company has also established the comprehensive international trade service enterprises, for customers provide all kinds of fasteners products at domestic and abroad

The general manager to lead the people-oriented of JULONG, pioneering and innovation, adhering to the "professional, integrity, win-win" business philosophy, to "the most reasonable price, perfect service, the best quality products" for the purpose of the service, wide use in the development of art to meet all friends, hand in hand cooperation, towards a better future!