
Round Head ANSI/ASME B18.5 Carriage Bolt M4
Over the years, we have developed into a famous manufacturer in the industry of bolts and fasteners ISO9001:2008, torx screw, lag bolts. Now the competition in this field is very fierce; but we will still offer best quality, reasonable price and most considerate service in an endeavor to achieve win-win goal. We've got in-house testing facilities where our items are tested on every single aspect at different processing stages. In our production and operation, we follow the tenet of honesty, credibility, and continuous development, and integrate enthusiasm and efficiency into the entire process of pre-sales, sales and after-sales services. Our company is well-funded, has advanced product processing equipment and first-class manufacturing technology.
Product Feature
The threads at both ends of our ASME ANSI Carriage Bolt can be combined with nuts, which are mainly used to fix tubular objects such as water pipes or sheet objects, including leaf springs of automobiles. On the other hand, it adopts the physical and mathematical principles of the circular rotation and frictional forces to gradually tighten utensils and parts.
Product Description
The ASME ANSI Carriage Bolt is specifically designed for a rugged fastener solution. Equipped with advanced process, it has a square cross section under the head, which can be self-locking when used in a square hole. In addition, it can be an ideal item that widely used in wet environments, with high and reliable performance. Due to the proper size and comapct design, it ensures easy installation, and there is no special need of maintaining.
Standard | Grade | Finish | Thread |
ASME B18.5 | 2 | Plain | UNC |
Zinc plated | |||
5 | Yellow zinc plated | ||
PTFE | |||
8 | Black | UNF | |
Dacromet | |||
Other | HDG | ||
Other |



'Sincerity, Innovation, Rigorousness, and Efficiency' is the persistent conception of our firm for the long-term to create jointly with consumers for Round Head ANSI/ASME B18.5 Carriage Bolt M4. We hope to exchange your trust with good faith. Based on the principle of 'user first', our company timely handles the problems found in the process of using the products and transforms them according to the requirements of users. We look forward to your visit and cooperation!
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