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China Square Bolt Manufacturer, Supplier, Factory

QBH Square Bolt is made from high-quality materials. Made from high-quality steel, it is resistant to corrosion and damage, ensuring a long-lasting and reliable performance. The square head design offers more surface area than a standard hex bolt, allowing for greater torque and greater holding power, That ensures a strong and secure fit every time.


Our QBH bolt is engineered to withstand even the toughest conditions. Thanks to its square shape, QBH bolt offers superior strength and stability, making it ideal for heavy-duty applications. QBH Square Bolt is capable of withstanding high levels of stress and torque. With its square-shaped head and threaded body, it provides a secure grip that resists loosening, even under heavy loads. And thanks to its precision design, QBH Square Bolt can be easily tightened and loosened using a standard wrench or pliers.


QBH Square Bolt has various applications in different industries, including the construction, automotive, and manufacturing sectors. It is commonly used to connect heavy machinery, structural components, and other equipment that require a secure and stable connection. Overall, QBH Square Bolt is an essential component for any construction or industrial project that requires a secure and reliable fastening. Its strength and durability make it an ideal choice for applications where safety and peace of mind are critical concerns.

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DIN21346 Square Bolt

DIN21346 Square Bolt

​DIN21346 Square Bolt are similar to Hex Cap screws but have a 4-sided square head instead of a 6-sided hexagonal head.They are commonly referred to as both bolts and screws and are designed to be driven with a wrench. DIN21346 Square Bolt are partially threaded with a shoulder beneath the head.

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ASME B182.2.1 Square Head Bolt

ASME B182.2.1 Square Head Bolt

​ASME B182.2.1 Square Head Bolt are similar to Hex Cap screws but have a 4-sided square head instead of a 6-sided hexagonal head. ... They are commonly referred to as both bolts and screws and are designed to be driven with a wrench. ​ASME B182.2.1 Square Head Bolt are partially threaded with a shoulder beneath the head.

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You can rest assured to buy Square Bolt made in China from our factory. QBH® is a professional China Square Bolt manufacturer and supplier, we can provide high quality products. Welcome to buy products from our factory.
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