Machine Screws
YH FASTENER produces precision machine screws for reliable assembly in electronic, mechanical, and automotive applications. High accuracy, smooth threads, and customizable head styles ensure perfect fit.
Carbon Steel Machine Screw: hardened for robust strength, with blue nickel drop-resistant plating for durable corrosion protection. Features a cylinder head for secure fitting and Phillips cross recess for easy tool operation. Ideal for machinery, electronics, and assemblies, delivering reliable, long-lasting fastening with stable performance.
The Truss Head Torx Drive Screw with Red Nylon Patch is a high-quality fastener designed for enhanced security and reliability in a wide range of applications. Featuring a unique red nylon patch, this screw offers exceptional resistance to loosening, making it ideal for environments where vibration or movement could cause traditional screws to become unstable. The truss head design ensures a low-profile and wide-bearing surface, while the Torx drive provides improved torque transfer for a secure and efficient installation. This screw is an essential choice for industries looking for durable, high-performance fasteners, offering a solution that balances ease of use with long-term functionality.
Introducing our Cross Recessed Countersunk Spray-Painted Machine Screw, the ultimate fusion of functionality, aesthetics, and discreet installation for your projects. This screw truly shines with its distinctive black spray-painted head, which not only adds a touch of sophistication but also provides enhanced corrosion resistance. The durable machine thread ensures a secure and reliable connection, making it suitable for a wide range of applications.
Moreover, the countersunk design of our screw is a defining feature that allows it to sit flush with the surface once installed. This characteristic is particularly advantageous in scenarios where a low-profile, seamless integration is crucial. Whether you’re working on fine furniture, automotive interiors, or delicate electronic devices, the countersunk head ensures that the screw remains hidden, preserving the overall aesthetics and sleekness of your project.
Hex Socket Half-Threaded Machine Screws, also known as hex socket half-threaded bolts or hex socket half-threaded screws, are versatile fasteners designed for a wide range of applications. These screws feature a hexagonal socket on their heads, allowing for secure tightening with a hex wrench or Allen key. The “half-threaded” designation indicates that only the lower portion of the screw is threaded, which can offer unique benefits in specific assembly scenarios.
Our Hex Socket Machine Screw with Nylon Patch is a versatile industrial fastening solution featuring a robust hex socket drive for precise torque transfer and a nylon patch that enhances vibration resistance and crucially prevents loosening, ensuring secure and reliable fastening in dynamic environments.
Presenting our Pan Washer Head Hex Socket Machine Screw, a versatile and dependable fastening solution engineered specifically for a wide range of industrial uses.This screw boasts a pan washer head that offers enhanced load distribution over a broader surface area, guaranteeing a firm and stable attachment. The hex socket design facilitates straightforward installation and disassembly, positioning it as the perfect option for manufacturers seeking efficient and trustworthy fastening solutions.
Our Hex Socket Truss Head Blue Zinc Plated Machine Screw is a high-performance fastener designed for industrial, mechanical, and electronic applications. Engineered for durability and ease of use, this screw features a hex socket drive for secure installation and a truss head that ensures reliable load distribution. The blue zinc plating provides corrosion resistance, making it ideal for environments exposed to moisture or chemicals. This machine screw is suitable for OEM projects, offering non-standard hardware fasteners tailored to your specific needs.
This machine screw features a unique half-thread design and cross drive, making it ideal for applications that require strength and ease of use. The black finish not only enhances its beauty, but also provides excellent corrosion resistance, in addition to this, there are a variety of colors that can be customized to meet your different needs.
Customized 304 stainless steel M1.6 M2 M2.5 M3 M4 countersunk button Torx pan head machine socket screws
button Torx screws low-profile, rounded head design and the use of the Torx drive system make them suitable for applications where both appearance and security are important. Whether it’s for automotive, electronics, or furniture, button Torx screws provide a reliable and visually appealing fastening solution.
DIN 912 also includes information about different strength classes or property classes for the screws, such as 8.8, 10.9, or 12.9. These classes indicate the minimum tensile strength and yield strength of the screws, providing an indication of their load-bearing capacity.
This machine screw has a unique design and uses a hexagon inner hexagon structure. The Allen head can be easily screwed in or out with a hex wrench or wrench, providing a larger torque transmission area. This design makes the installation and dismantling process easier and more convenient, saving time and labor.
Another standout feature is the serrated head of the machine screw. The serrated head has multiple sharp serrated edges that increase friction with the surrounding material, providing a firmer holding when attached. This design not only reduces the risk of loosening, but also maintains a secure connection in a vibrating environment.
Screws, bolts, and other fasteners come in countless variations. Among the numerous standard fastener types, machine screws rank as one of the most widely utilized products.

Machine screws maintain a consistent diameter along their entire shank (unlike tapered screws with pointed tips) and are designed for securing machinery, appliances, and industrial equipment components.

Pan Head Machine Screws
Dome-shaped flat heads for low-profile fastening in electronics or panels requiring slight surface clearance.

Flat Head Machine Screws
Countersunk heads sit flush with surfaces, ideal for furniture or assemblies demanding smooth finishes.

Round Head Machine Screws
Rounded, high-profile heads with broader bearing surfaces, suited for decorative or high-pressure applications like automotive trim.

Hex Head Machine Screws
Hexagonal heads for wrench/socket tightening, offering high torque resistance in industrial machinery or construction.

Oval Head Machine Screws
Decorative oval-shaped countersunk heads reduce snagging, commonly used in consumer electronics or visible assemblies.
The application of machine screws is very wide, and the following are some common areas:
1. Electronic equipment: Machine screws are used in the electronics industry to fix components in circuit boards, computers, smartphones and other devices to ensure the stability and reliability of the equipment.
2. Furniture and construction: In furniture assembly, machine screws are used to connect parts that require precise and stable fit, such as cabinets, bookshelves, etc. In the construction field, they are used to fix light metal fixtures and structural components.
3. Automotive and aerospace industries: In these fields, machine screws are used to fix high-load components such as engine parts and chassis components to ensure safety and performance in harsh environments.
4. Other applications: Machine screws are also widely used in various occasions that require reliable connections, such as public facilities, medical equipment, mechanical equipment, etc.
At Yuhuang, securing custom fasteners is structured into four core phases:
1.Specification Clarification:Outline material grade, precise dimensions, thread specifications, and head configuration to align with your application.
2.Technical Collaboration:Collaborate with our engineers to refine requirements or schedule a design review.
3.Production Activation:Upon approval of finalized specifications, we initiate manufacturing promptly.
4.Timely Delivery Assurance:Your order is expedited with rigorous scheduling to guarantee on-time arrival, meeting critical project milestones.
1. Q: What is a machine screw?
A: A machine screw is a uniform-diameter fastener designed to secure threaded holes or nuts in machinery, appliances, or precision assemblies.
2. Q: What is the difference between a machine screw and a sheet metal screw?
A: Machine screws require pre-threaded holes/nuts, while sheet metal screws have self-tapping threads and sharp tips to pierce and grip thin materials like metal sheets.
3. Q: Why is a machine screw not a bolt?
A: Bolts typically pair with nuts and transfer shear loads, whereas machine screws focus on tensile fastening in pre-threaded holes, often with finer threads and smaller sizes.
4. Q: What is the difference between a machine screw and a set screw?
A: Machine screws join components with a head and nut, while set screws are headless and apply pressure to prevent movement (e.g., securing pulleys on shafts).