Hangzhou Guangsi Fasteners Co., Ltd.

China bolt and washer Manufacturers Factory Suppliers

We are committed to green development and harmonious development, providing safe and environmentally friendly screws with gasket, pan head bolt, metal nut and quality services to the society and contributing to economic development. Our company has been engaged in the production of bolt and washer for many years. With the continuous change and development of the market, customers have put forward higher requirements for product quality and service, and our company will also require itself more strictly to provide customers with high-quality products and enthusiastic services. After years of scientific and technological research, the company has improved the cost-effectiveness of various products, thanks to the trust and care of our customers. Information technology can promote the continuous progress of our management, shape our core competitiveness and improve our service quality. We actively fulfill the mission of the enterprise, determined to reform, innovative development, rapid development of the main business. Our team is comprised of experienced professionals with a deep understanding of the industry. Our company is dedicated to diversity and inclusion.
  • Cylindrical Head Socket Screws

    Cylindrical Head Socket Screws

    Cylindrical head socket screws, typically featuring an internal hex drive, are a preferred solution for high-strength fastening. Their cylindrical head profile — generally taller than pan or

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  • Pan Head Self-tapping Screws

    Pan Head Self-tapping Screws

    Pan head self-tapping screws are a core type of self-tapping fastener, featuring a round pan head that combines aesthetic appeal with uniform load distribution. These screws can tap and fasten

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  • Countersunk Self-tapping Screws

    Countersunk Self-tapping Screws

    Countersunk self-tapping screws are a core sub-category of self-tapping fasteners, featuring a countersunk head designed to sit flush with the material surface after installation. This eliminates

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  • Half-round Head Self-tapping Screw

    Half-round Head Self-tapping Screw

    Half-round head self-tapping screws combine aesthetics with high performance. Their semi-circular head sits closer to the material than a pan head while providing greater pressure resistance than a

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  • Pan Head Machine Screw

    Pan Head Machine Screw

    Pan head machine screws are a key category of machine-thread fasteners. Unlike self-tapping screws, they feature standard machine threads designed for use with pre-tapped holes. Their main advantages

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  • Countersunk Machine Teeth

    Countersunk Machine Teeth

    Countersunk machine teeth are the premier choice for concealed assembly, featuring a head that sits completely flush with the material surface. Their main advantages are high-precision connections, a

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  • Screw and Washer Assembly

    Screw and Washer Assembly

    The screw and washer assembly is an innovative fastener designed for efficient assembly. Its defining feature is the permanently integrated screw and washer. The primary advantages of this assembly

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  • Machine Thread Three-piece Combination Screw

    Machine Thread Three-piece Combination Screw

    The machine thread three-piece combination screw represents a highly integrated fastening solution. It consists of a machine screw, a flat washer, and a nut pre-assembled into a single, ready-to-use

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  • Double-ended Screws

    Double-ended Screws

    Double-ended screws, also known as studs or threaded rods, are specialized machine-thread fasteners with precision machine threads on both ends and a smooth shank in the center. Their key advantages

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  • Hand-tightening Screws

    Hand-tightening Screws

    Products are highly user-friendly fasteners designed for tool-free operation. Their heads feature a knurled, anti-slip surface that allows secure tightening and removal by hand, without the need for

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  • Expansion Bolts

    Expansion Bolts

    Product is specialized fasteners designed for secure fixing into masonry walls and concrete. The system typically consists of a bolt, an expansion sleeve, a flat washer, a spring washer, and a nut.

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  • Round Head Carriage Bolt

    Round Head Carriage Bolt

    Round head carriage bolts are traditional fasteners specifically designed for use with wood and other soft materials. Their defining structure features a smooth, rounded head with an integrated

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Rochelle Martin star star star star star
Because of the large purchase volume and the promotion activities of this supplier, we saved a lot of purchase costs, and the quality of the products did not disappoint.
Lloyd Meadows star star star star star
Your quality control is very strict and you treat your products meticulously.
Carole Stephenson star star star star star
You are a company that is very good at listening to people and is brave enough to correct problems.
Barbara Sweet star star star star star
Although this is our first time working together, you have served us very well.
Sherry Marks star star star star star
We are very grateful to this supplier for their help and support in the past year! We can cooperate with them for a long time precisely because their good organization and management can always make
Victor Radcliffe star star star star star
This supplier belongs to a big brand and the products are trustworthy and of good quality.
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Types of Washers - The Home Depot...

WebA washer is a circular piece of hardware that evenly distributes the force of a screw or nut. Washers can relieve friction and prevent corrosion or leakage. They can help maintain tension or serve...

FASTENER REFERENCE GUIDE...

WebFor bolts and screws longer than 6 in. Grade 1 requirements shall apply. 307A 307B A325 A449 BC BD A490 H - K G 9 for additional technical information, contact fastenal engineering at...

List of 14 Types of Washers & Their Uses …...

WebSep 14, 2020 · Washers and Types Contents show Its shape is like a round ring. Before tightening the nut and bolt, it...

USBoltKits | Premium USA Made Assortments – US Bolt Kits...

WebShop USBoltKits.com for A Large Variety of Bolts, Nuts, Washers, Screws, Hydraulics, Bolt Kits, Electrical Kits, Hardware Kits and Much More! We Offer Both Metric and Standard Sizes. Low Prices,...

Washers at Lowes.com...

WebHillman 1/2-in Standard Split Lock Washer. Engineered to provide more uniform load distribution, split lock washers are great for any indoor/outdoor project. Ideal for situations...

We have both a national and international operating network, and our hex head self drilling screw, round head bolt is well received by both domestic and international customers. As one of the leading bolt and washer enterprises in China, we warmly welcome you to buy discount bolt and washer for sale here from our factory. All customized products are with high quality and low price. If you have any enquiry about quotation, please feel free to email us.
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