At JM Hardware®, we offer a wide range of custom screw options to meet your specific requirements. Our custom screws can be tailored in various types, including machine screws, self-tapping screws, wood screws, drywall screws, lag screws, sheet metal screws, deck screws, and concrete screws. We also manufacture specialized screws like shoulder screws, set screws, socket head cap screws, countersunk screws, and thumb screws. Additionally, we can customize thread types such as coarse thread, fine thread, twinfast thread, and high-low thread. Whether you need screws with Phillips heads, flat heads, pan heads, hex heads, or Torx heads, we have the flexibility to deliver the exact specifications you require, with a variety of finishes such as zinc plating, black oxide, galvanized, and Teflon coatings. We are committed to providing high-quality, durable screws for a wide range of applications, including construction, automotive, electrical, and furniture industries.

Let us know your specific requirements, and we’ll work with you to create the perfect custom screw solution!

Types of screw grooves:

1. Threaded: This is the most common type of screw groove, where the helical ridges on the screw shaft are uniformly spaced and create a threaded pattern.

2. Square: Square grooves are found on square-headed screws and are designed to provide a secure grip for a wrench or pliers.

3. Phillips: Phillips grooves are cross-shaped and are designed to be used with a Phillips screwdriver. They are common in consumer electronics, appliances, and automotive applications.

4. Torx: Torx grooves have a six-pointed star shape and are designed to be used with a Torx screwdriver. They are commonly used in automotive and computer applications.

5. Pozidriv: Pozidriv grooves are similar to Phillips grooves but have additional cross-shaped ridges. They are commonly used in construction and woodworking applications.

6. Slotted: Slotted grooves are simple linear grooves that are designed to be used with a flathead screwdriver. They are commonly used in furniture and cabinetry applications.

7. Hex: Hex grooves are found on hex-headed screws and are designed to be used with a hex wrench or socket. They are commonly used in construction and automotive applications.

8. Tri-wing: Tri-wing grooves have three wings or lobes and are commonly used in electronics and aerospace applications.

9. Security: Security grooves are designed to prevent tampering and require a special tool toinstall or remove the screw. They are commonly used in high-security applications, such as in prisons, airports, and government facilities.

10. One-way: One-way grooves are designed to be installed with a standard tool but cannot be removed with the same tool. They are commonly used in public places, such as restrooms, to prevent vandalism.

11. Double-start: Double-start grooves have two threads that start at the same point on the screw shaft and are commonly used in lead screws and other power transmission applications.

12. Acme: Acme grooves are trapezoidal in shape and are commonly used in power transmission applications, such as in lead screws and jackscrews.

13. Buttress: Buttress grooves have one thread with a flat surface and one with an angled surface, and are commonly used in applications where high axial loads are required.

14. Knurled: Knurled grooves have a textured surface that provides a secure grip and are commonly used in applications where the screw needs to be tightened by hand, such as in knobs and handles.

These are just a few examples of the many types of screw grooves that exist, each designed for specific applications and use cases.

Types of screw Head:

1. Flathead: Flathead screws have a flat top surface with a single slot for a screwdriver. They are commonly used in woodworking and furniture applications.

2. Phillips: Phillips screws have a cross-shaped recess and are designed to be used with a Phillips screwdriver. They are commonly used in electronics, appliances, and automotive applications.

3. Hex: Hex screws have a hexagonal head and are designed to be used with a hex wrench or socket. They are commonly used in construction and automotive applications.

4. Torx: Torx screws have a six-pointed star shape and are designed to be used with a Torx screwdriver. They are commonly used in automotive and computer applications.

5. Square: Square screws have a square-shaped head and are designed to be used with a square wrench or pliers. They are commonly used in construction and woodworking applications.

6. Button: Button screws have a low-profile dome-shaped head and are commonly used in electronics and computer applications.

7. Pan: Pan screws have a slightly rounded top surface and are commonly used in electronics and automotive applications.

8. Round: Round screws have a circular head and are commonly used in decorative applications.

9. Truss: Truss screws have a low-profile rounded head and are commonly used in furniture and cabinetry applications.

10. Oval: Oval screws have an oval-shaped head and are commonly used in decorative applications.

11. Mushroom: Mushroom screws have arounded head with a slightly larger diameter than the screw shaft and are commonly used in furniture and cabinetry applications.

12. Cheese: Cheese screws have a cylindrical head with a slightly tapered top and are commonly used in electronics and automotive applications.

13. Fillister: Fillister screws have a cylindrical head with a slightly concave top and are commonly used in engine and machinery applications.

14. Binding: Binding screws have a cylindrical head with a slightly raised rim and are commonly used in bookbinding and leatherworking applications.

15. Socket: Socket screws have a recessed hexagonal socket in the head and are designed to be used with a hex wrench or socket. They are commonly used in machinery and automotive applications.

16. Security: Security screws have a unique head design that requires a special tool to install or remove the screw. They are commonly used in high-security applications, such as in prisons, airports, and government facilities.

17. One-way: One-way screws have a head that can be installed with a standard tool but cannot be removed with the same tool. They are commonly used in public places, such as restrooms, to prevent vandalism.

These are just a few examples of the many types of screw heads that exist, each designed for specific applications and use cases.

Types of screw tip:

1. Flat: Flat tips are the most common type of screw tip and have a flat surface that is designed to fit into a slotted screw head.

2. Phillips: Phillips tips have a cross-shaped design that is designed to fit into a Phillips screw head.

3. Pozidriv: Pozidriv tips have a cross-shaped design that is similar to Phillips tips but with additional cross-shaped ridges. They are commonly used in construction and woodworking applications.

4. Torx: Torx tips have a six-pointed star shape that is designed to fit into a Torx screw head. They are commonly used in automotive and computer applications.

5. Hex: Hex tips have a hexagonal shape that is designed to fit into a hex screw head. They are commonly used in construction and automotive applications.

6. Robertson: Robertson tips have a square-shaped design that is similar to a Phillips tip but with a square-shaped recess. They are commonly used in construction and woodworking applications.

7. Tri-wing: Tri-wing tips have three wings or lobes and are commonly used in electronics and aerospace applications.

8. Spanner: Spanner tips have two notches that are designed to fit into a spanner screw head. They are commonly used in security applications.

9. Clutch: Clutch tips have a circular design with a single slot that is designed to fit into a clutch screw head. They are commonly used in electronics and automotive applications.

10. One-way: One-way tips have a design that allows them to be installed with a standard tool but cannot be removed with the same tool. They are commonly used in public places, such as restrooms, to prevent vandalism.

11. Tri-lobular: Tri-lobular tips have three lobes that are designed to fit into a tri-lobular screw head. They are commonly used in automotive and electronics applications.

12. Pin-in-hex: Pin-in-hex tips have a hexagonal shape with a small pin in the center that is designed to fit into a pin-in-hex screw head. They are commonly used in high-security applications.

13. ACR: ACR tips have a design that is similar to a Phillips tip but with a smaller point and additional cross-shaped ridges. They are commonly used in construction and woodworking applications.

14. Hi-Torque: Hi-Torque tips have a design that is similar to a Phillips tip but with a larger point and additional cross-shaped ridges. They are commonly used in construction and automotive applications.

These are just a few examples of the many types of screw tips that exist, each designed for specific applications and use cases.

Types of screw surface:

1. Plain: Plain screws have a smooth surface without any additional coatings or treatments.

2. Zinc-plated: Zinc-plated screws have a thin layer of zinc coating on the surface, which provides some protection against corrosion.

3. Black oxide: Black oxide screws have a dark, matte black finish that is created through a chemical process. This finish provides some protection against corrosion and wear.

4. Galvanized: Galvanized screws have a layer of zinc coating that is applied through a hot-dip process. This provides a high level of protection against corrosion.

5. Nickel-plated: Nickel-plated screws have a layer of nickel coating on the surface, which provides some protection against corrosion and wear.

6. Chrome-plated: Chrome-plated screws have a layer of chrome coating on the surface, which provides a high level of protection against corrosion and wear. This finish is commonly used in automotive and decorative applications.

7. Powder-coated: Powder-coated screws have a layer of dry powder coating that is applied electrostatically and then cured under heat. This provides a durable and long-lasting finish that is resistant to corrosion and wear.

8. Anodized: Anodized screws have a layer of oxide coating that is created through an electrochemical process. This provides a hard, durable, and corrosion-resistant finish that is commonly used in aerospace and military applications.

9. Ceramic-coated: Ceramic-coated screws have a layer of ceramiccoating on the surface, which provides a high level of protection against wear and corrosion. This finish is commonly used in high-stress and high-temperature applications.

10. Teflon-coated: Teflon-coated screws have a layer of Teflon or similar fluoropolymer coating on the surface, which provides a non-stick, low-friction surface that is resistant to corrosion and wear. This finish is commonly used in food processing and medical applications.

11. Phosphate-coated: Phosphate-coated screws have a layer of phosphate coating that is applied through a chemical process. This provides a durable and corrosion-resistant finish that is commonly used in automotive and machinery applications.

12. E-coated: E-coated screws have a layer of electro-deposited coating that is applied through an electrostatic process. This provides a durable and long-lasting finish that is resistant to corrosion and wear.

These are just a few examples of the many types of screw surfaces that exist, each designed for specific applications and use cases.

JM Hardware® can customize Head types according to your requirements， you can send your specific requirements to our email: xarella.huang@jm-industry.com

Types of screw material:

1. Steel: Steel screws are the most common type and are available in various grades and alloys. They are strong, durable, and resistant to wear and corrosion.

2. Stainless steel: Stainless steel screws have a higher level of corrosion resistance than regular steel screws. They are commonly used in applications where exposure to moisture or chemicals is a concern.

3. Aluminum: Aluminum screws are lightweight and corrosion-resistant. They are commonly used in applications where weight is a concern, such as in aerospace and automotive applications.

4. Brass: Brass screws have a gold-like appearance and are corrosion-resistant. They are commonly used in decorative and electrical applications.

5. Copper: Copper screws have excellent electrical conductivity and are commonly used in electrical and plumbing applications.

6. Titanium: Titanium screws are strong, lightweight, and corrosion-resistant. They are commonly used in aerospace, medical, and high-performance applications.

7. Inconel: Inconel screws are a family of high-performance alloys that are strong, heat-resistant, and corrosion-resistant. They are commonly used in aerospace, nuclear, and chemical processing applications.

8. Monel: Monel screws are a family of alloys that are strong, corrosion-resistant, and have excellent mechanical properties. They are commonly used in marine, chemical processing, and oil and gas applications.

9. Nylon: Nylon screws are lightweight, non-corrosive, and have good insulation properties. They are commonly used in electrical and electronic applications.

10. Plastics: Plastic screws are available in various materials, such as nylon, PVC, and polycarbonate. They are lightweight, non-corrosive, and have good insulation properties. They are commonly used in electrical, medical, and automotive applications.

11. Carbon fiber: Carbon fiber screws are lightweight and have high strength-to-weight ratios. They are commonly used in aerospace, automotive, and sports equipment applications.

12. Ceramic: Ceramic screws have high strength and are resistant to wear and corrosion. They are commonly used in high-temperature and chemical processing applications.

13. Bronze: Bronze screws have good corrosion resistance and are commonly used in marine and electrical applications.

14. Zinc: Zinc screws have good corrosion resistance and are commonly used in construction and outdoor applications.

These are just a few examples of the many types of screw materials that exist, each designed for specific applications and use cases.

JM Hardware® can customize material according to your requirements， you can send your specific requirements to our email: xarella.huang@jm-industry.com

Brand Story

The inception of the JM Hardware® brand was a profound moment born out of a fateful business trip. During a trip abroad, I was flipping through a newspaper when I came across a heartbreaking story about a steel building that had collapsed due to a batch of substandard fasteners. The tragic images and casualties left an indelible mark on me.

From that moment on, our commitment to putting product quality first became a cornerstone of JM Hardware®, engraved in the DNA of our brand. With this unwavering commitment, JM Hardware® set out to set a new standard for quality. We spend countless hours researching, developing, and testing each product to ensure that they not only meet industry standards, but that they also meet the company's own higher standards. This journey is driven not by profit, but by a deep sense of responsibility - the responsibility to protect a person, a family, a community.

JM Hardware® stands as a testament to that enduring commitment. Every product that bears the JM Hardware® name will be synonymous with excellence, durability and safety.

JM Hardware®: the combination of quality and integrity.

-------- Mrs. Xarella Huang

General President

JM Hardware conducts product quality control in strict accordance with ISO 9001 standards to ensure that our products meet high quality standards. Below are our five quality control steps:

Step 1: Incoming material control

We carry out strict incoming material control by conducting dimensional tests on each batch of raw materials and checking the raw material reports from the steel mills. This ensures that the raw materials we use are within specification and provide a reliable basis for production.

Step 2: First part control
After the mold assembly is completed, we conduct a thorough inspection of the first production part and make detailed records. Only qualified first parts can be released to start mass production. This step ensures that the quality of the product meets the standard at the beginning.

Step 3: Self-inspection by workers during mass production
In the mass production process, we require the workers of each machine to carry out self-inspection every hour. If any substandard product is found, we will immediately pick or scrap the production within this hour until the problem is solved and meets the standard of conformity, and then we can continue the production. This self-inspection mechanism helps to find and solve problems in time during the production process.

Step 4: QC inspection during mass production
In addition, every two hours, the quality inspection personnel will carry out random inspection on the products of each machine. Only qualified products can continue to flow into the next production stage. If non-conforming products are found, we will take the same selection or scrapping measures and ensure that the problem is properly handled. This helps provide additional quality assurance.

Step 5: Finished product control
Finally, after each batch of finished product is made, we conduct random inspections in proportion to the order. Qualified products will be packaged and put into storage, while unqualified products will be returned for further analysis and rectification. We insist on ensuring that the quality of our products meets high standards so that we can provide reliable products to our customers.

Step 6: Non-conforming goods management
According to the process of JMhardware's non-conforming products handling, pick or scrap. And the problem of rectification and tracking reasons to ensure that non-conforming products will not flow into the market.

These quality control measures constitute JM Hardware's quality management system, and we are constantly striving to improve the quality of our products and are committed to meeting the needs of our customers. We believe that quality control is the key to our success.

Our vision is to make JM Hardware® a well-known Chinese brand of high-end hardware parts in the world,and your cooperation will be an important part of it

If you do not see the product you need, or you have special customization requirements, you can send an email to xarella.huang@jm-industry.com. JM Hardware® will do our best to help you solve the problem