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Since its inception, Ganggu has focused on the development and manufacturing of high-quality hardware fasteners and precision CNC machining services.

OEM/ODM Customized service

Focus on custom precision hardware components, mainly engaged in screws, pins, nuts, rivets, springs, washers, hinges, angle brackets and CNC machined parts, providing one-stop OEM/ODM customization services. Relying on the strength of dual factories and advanced equipment, we support customization according to drawings and samples, strictly control quality, flexibly adapt, and deliver quickly, accurately matching your various customization needs to help your product upgrade and increase efficiency.

Consultation & Design

We have a professional team of technical consultants and design engineers who provide one-on-one consultation with customer needs throughout the process. We patiently listen to your core requirements for custom screws, pins, nuts, rivets, springs, washers, hinges, angle brackets and CNC machined parts, including specific applications, performance requirements, application scenarios, appearance standards, etc. 

Whether it is a simple specification adjustment or a complex non-standard part customization, we will combine years of industry experience to provide you with professional technical advice, help optimize product design schemes, avoid potential problems in the production process, and ensure that the design scheme not only meets your actual needs, but also has feasibility and economy. At the same time, we will respond to consultation needs quickly, feedback design ideas in a timely manner, and communicate with you efficiently until a consensus is reached, laying a solid foundation for the subsequent customization process.

Detailed Specification Confirmation

After reaching a consensus on the consultation and design plan, we will enter the detailed specification confirmation stage, which is a key step to ensure that the customized products accurately match the requirements. We will issue a detailed specification confirmation form, clearly marking various core parameters of the product, including but not limited to: material (carbon steel, stainless steel, aluminum alloy, etc.), dimensions (length, diameter, thickness, hole diameter, etc.), precision grade, surface treatment (galvanizing, chrome plating, electrophoresis, black oxide coating, etc.), mechanical properties (tensile strength, hardness, toughness, etc.), quantity, delivery cycle and special requirements (such as corrosion resistance, high temperature resistance, anti-loosening performance, etc.). 


The confirmation form will be sent to you simultaneously, and our specialist will verify each parameter with you one by one, patiently answer your questions, and conduct repeated communication and confirmation on ambiguous details to avoid product inconsistency caused by specification deviations. Only after you sign and confirm that all specifications are correct will we start the subsequent sample production process, ensuring the accuracy of customized products from the source.

Sample Production

After the specifications are confirmed correctly, we will give priority to sample production, aiming to allow you to intuitively inspect the quality, specifications, appearance and performance of the product to ensure it meets expectations. We have advanced sample production equipment and a professional sample production team, which strictly produce in accordance with the confirmed specifications, parameters and design plans, and control every link of sample production throughout the process. From raw material selection, processing and forming to surface treatment, we all follow high-standard production specifications. After the sample production is completed, we will conduct a preliminary quality inspection on the sample. 


After confirming that there are no dimensional deviations, appearance defects and performance issues, we will send it to you in a timely manner. At the same time, we will provide a sample test report, detailing the test results of various parameters of the sample. After you receive the sample, if you have any adjustment opinions, we will respond immediately and modify the sample free of charge until you are completely satisfied with the sample, and then enter the mass production stage, minimizing your customization risk.

Mass Production

After the sample is confirmed to be qualified, we will officially start mass production. Relying on the factory's mature production system and advanced production equipment, we will efficiently and stably complete the mass manufacturing of customized products. We adopt a standardized production process and strictly control each production process. From raw material procurement, cutting, machining, forming, surface treatment to finished product assembly, there are professional technical personnel on-site supervision to ensure that the specifications and quality of each product are consistent with the sample. 


For precision components such as screws and pins, we use high-precision machining equipment to ensure that product precision meets standards; for products that require special processes such as springs and hinges, we are equipped with a professional process team to optimize production processes and improve product performance. At the same time, we will reasonably plan the production schedule, strictly abide by the agreed delivery cycle, and feedback the production progress to you in real time, allowing you to grasp the product production status at any time and ensure that the products can be delivered on time to meet your production or application needs.

Quality Control

Quality is our core competitiveness, running through the entire process of customized services. From raw material warehousing to finished product delivery, we have established multiple strict quality control systems to ensure that each customized product meets high-standard requirements. 


When raw materials are warehoused, we will strictly inspect the material, specifications and performance to prevent unqualified raw materials from entering the production process; during the production process, each process is equipped with a special quality inspection node, which conducts sampling inspection and full inspection on the dimensions, precision, appearance and performance of the product, and timely finds and solves quality problems in the production process; before the finished product is delivered from the warehouse, we will conduct a final comprehensive quality inspection, verify each parameter of the product one by one, conduct a comprehensive inspection on the appearance and performance, and issue a detailed quality inspection report at the same time to ensure that 100% of the delivered products are qualified. 


We always adhere to the principle of "unqualified products not leaving the factory", and rely on professional quality inspection equipment and high-quality quality inspection teams to provide you with reliable and high-quality customized products, relieving your quality concerns.

Packaging & Shipping

To ensure that customized products are not damaged, rusted or contaminated during transportation, we adopt a scientific and reasonable packaging plan. According to the product's material, dimensions, quantity and transportation distance, we select appropriate packaging materials and packaging methods. For small components such as screws, nuts and washers, we use sealed bags, cartons for layered packaging, and do a good job in moisture-proof, rust-proof and anti-collision treatment; for pins, hinges, angle brackets and large CNC machined parts, we use packaging materials such as foam, pearl cotton and wooden pallets for reinforced packaging to prevent deformation and damage during transportation. 


At the same time, we will clearly mark the product name, specifications, quantity, customer information and warning signs such as moisture-proof and anti-fall on the packaging, which is convenient for you to receive and count. In the transportation link, we cooperate with a number of professional logistics and express companies, select the appropriate transportation method (land transportation, sea transportation, air transportation, etc.) according to your needs, reasonably plan the transportation route, track the logistics status throughout the process, and feedback the goods transportation status to you in a timely manner, ensuring that the products are safely and punctually delivered to the location you specify, completing the entire customized service process.

After-Sales

We always put customer satisfaction first, establishing a comprehensive, efficient and fast after-sales service system to provide customers with worry-free after-sales guarantee throughout the whole process, truly achieving "professional pre-sales consultation, accurate in-sales control and intimate after-sales follow-up". After product delivery, we provide 24/7 after-sales consultation service.


Professional and technical personnel promptly respond to various problems you encounter in the process of product use, installation and maintenance, provide one-on-one technical guidance, and quickly solve practical problems; if the product has quality problems caused by non-human factors, we will provide a solution within 24 hours, free of charge for repair and replacement services, and we will bear the round-trip logistics costs to minimize customer losses; for long-term cooperative customers, we provide regular return visit services to understand product use, collect customer opinions and suggestions, continuously optimize products and services, and provide customers with value-added services such as product maintenance and technical upgrading to help customers use products efficiently and achieve long-term win-win results.

Specialized OEM/ODM Services
High-quality materials such as carbon steel, stainless steel, aluminum alloy, copper alloy and titanium alloy are selected. It can be customized according to your product use and application scenarios (such as high temperature, corrosion resistance, high strength requirements). Please contact us for special materials.
Screws, pins, nuts, rivets, springs, washers, hinges, angle brackets, CNC machined parts, etc., covering various precision hardware components. Special structure and non-standard specification products can be customized on demand.
Various treatment methods such as galvanizing, chrome plating, electrophoresis, black oxide coating, anodizing, spraying and passivation. It can be customized according to the needs of anti-corrosion, beauty and wear resistance, and the color can be matched synchronously.
Any shape such as round, square and special shape. The size can be customized on demand, with precision up to ±0.001mm, which perfectly matches your assembly needs. Customization according to drawings and samples is supported.
Various processes such as laser engraving, hot stamping, screen printing and etching. According to your brand needs, the position, size and color of the LOGO can be customized, which is clear, beautiful and not easy to fall off.
Various packaging methods such as independent packaging, bulk packaging and gift box packaging can be customized. It supports printing brand LOGO and product parameters. The packaging quantity (such as 100 sets/box, 500 sets/box, 1200 sets/box, etc.) can be adjusted on demand to meet different transportation and sales needs.

Testimonials

Here's What Our Clients Say

Our products are widely used in industries such as automotive, electronics, machinery, furniture, and construction, meeting the needs of customers across various fields.
Positive reviews from Indian customers
5.0/5.0 ★★★★★
Competitive price with reliable surface treatment. Our long‑term fastener supplier.
Positive reviews from Colombia customers
5.0/5.0 ★★★★★
Excellent service!!! The best screw provider in china! Look no further, this guys are the best you won't regret working with them. Best is the best
Positive Reviews From United Kingdom Customers
5.0/5.0 ★★★★★
Competitive price with reliable surface treatment. Our long‑term fastener supplier.
Positive reviews from Australia customers
5.0/5.0 ★★★★★
Good support for non‑standard bolts & screws. Samples are delivered quickly for validation.
Positive reviews from United States customers
5.0/5.0 ★★★★★
Great supplier, very attentive to quality! Happy to work with Angel!
Positive reviews from Mexico customers
5.0/5.0 ★★★★★
It's a reliable supplier. The quality and services are always good.
Enterprise certificate

The company utilizes precision manufacturing equipment, advanced testing instruments, and adheres to the ISO9001:2015 quality management system, ensuring that products meet international quality standards.

Our Parts Industry Solutions

We provide one-stop solutions for custom precision components such as screws, pins and nuts for multiple scenarios including furniture & electrical appliances, plastics & toys, architectural hardware, mechanical equipment, and supermarket cross-border. We can adapt to various scenario needs on demand, customize exclusive products, and help customers in various industries reduce costs, increase efficiency and enhance product competitiveness with strict quality and efficient delivery.

Contact Us
Feel free to contact with us
If you have any questions about our products or services, feel free to reach out to customer service team.
Contact: Angel
Contact number: +86 18602085825
WhatsApp: +86 18602085825
Address: Room 101, Building 2, No.11 jintang Road,changping Town, Dongguan City, Guangdong Province, CN
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