Why QT providing one-stop service to customers?

1.what does “one-stop” services mean?
One-stop service means business body has the capability of supplying all a customer's needs within a particular range of goods or services. So that customers do not have to go to different places or ask different people.

2.Why does QT provide one-stop service?
A.QT has the capability to meet our customers’ needs. We have our factory,technical engineers ,equipment etc, these all can make this service come true.
B.QT with a view to uptimize our quality &service continuously, we are always try our best to provide better service to customers.
C.Our customers need one-stop services,this is a development tendency. This service can save customers’ time and energies, creately improve efficiency.

3.How to achieve win-win situation with customers?
A.Quality & service guarantee
B.Trusting and understanding each other
C.Focus on long-term development

QT is a professional fastener factory. We have over 17 years experience in this industry. We are trying to be the qualified one-stop fastener partner with all of our customers. QT provides all kinds of screws:machine screws,self tapping screws,nuts,bolts,washers. Welcome your enquiry!

The definition of machine screws | Shenzhen Qiangtuo Fastener Co., Ltd

What is a machine screw?
The definition of machine screws:A stove bolt is a type of machine screw that has a round or flat/plain head and is threaded to the head. They are usually made of low grade steel, have a slot or Phillips drive, and are used to join sheet metal parts using a hex or square nut.

What are threads on a screw?
A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread.

What is a screw used for simple machines?
Geometrically, a screw can be viewed as a narrow inclined plane wrapped around a cylinder. Like the other simple machines a screw can amplify force; a small rotational force (torque) on the shaft can exert a large axial force on a load.

Common Types of Screw Drives
1.There are literally hundreds of screw drives.
2.Common screw drives include slotted, Phillips, Hex, Hex socket (Allen), security hex socket (pin in hex socket) Torx T & TX, and One-Way.
3.The slotted screw drive simply has a single slot in the head of the fastener and is driven by a flat-bladed screwdriver.

What is the difference between a machine screw and a bolt?
Typically, a universally accepted distinction between a screw and a bolt does not exist. A screw is an externally threaded fastener capable of being inserted into holes in assembled parts, of mating with a preformed internal thread or forming its own thread, and of being tightened or released by torqueing the head. Machine screws sizes are always smaller than bolts. There are metric machine screws and non-standard pieces in the fasteners market for purchasers choosing.

Carriage bolts introduction | Shenzhen Qiangtuo Fastener Co., Ltd

What are Carriage Bolts?
A carriage bolt, coach bolt or round head square neck bolt is a form of bolt used to fasten metal to wood.There is a huge variety of fasteners or bolts today. Different types of bolts have their own set of properties, advantages, and areas of application.These bolts are also referred by the name coach bolt. Just like other bolts, the carriage bolts can be of various types.

Types of carriage bolts
Here are some of the most commonly used types of carriage bolts, along with their properties:
1.Round Head, Ribbed Neck: These carriage bolts are made from low carbon steel. These types of coach bolts have serrated or ribbed shoulders and feature a round head.
2.Round Head, Short Neck: These bolts have a round head, and a short and square-shaped shoulder. They have a unified thread pitch, and are generally made from low or medium carbon steel.
3.Flat Head, Square Neck: As the name suggests, they feature a flat head, which gives a lower profile on the top or front side of fastening as compared to that of a round head bolt.
4.Fin Neck: The fin neck carriage fasteners are most commonly made from low carbon steel material. These fasteners feature a round head and a flat bearing surface. The bearing surface of these bolts makes a 90° angle with the shank.

Applications of carriage bolts
1.used in soft and ductile metals, plastics and wood.
2.Short neck bolts makes them suitable for use with sheet metal, as a standard size neck can create an obstruction.
3.Garage door industry or other applications
4.The fin neck bolts are mainly used in thin plywood.

Shenzhen Qiangtuo Fastener Co., Ltd | Knowledge of drywall screws

Definition of drywall screws:
Specialized screw with a bugle head that is designed to attach drywall to wood or metal studs, however it is a versatile construction fastener with many uses. The diameter of drywall screw threads is larger than the grip diameter.Drywall screws have deeper threads than regular screws, which prevents them from dislodging easily from the drywall. They are made of steel and require a power screwdriver to drill them into the drywall. In addition, drywall screws are often used along with plastic anchors that help distribute the weight of the hung object evenly over the surface.

Types of drywall screws:
Drywall screws are classified according to length and pitch. There are two common types of drywall screw lengths: S-type and W-type. S-type screws are designed for attaching drywall onto metal. Their sharp points make penetrating the surface easier. W-type screws, on the other hand, are longer and thinner. They are designed for installing drywall onto wood. Although drywall panels differ in thickness, it’s usually sufficient to drive W-type screws into the wood at least 0.63 inches (1.6 centimeters), and for S-type screws to penetrate a metal stud to a depth of 0.38 inches (0.9 centimeters) If you are screwing through multiple layers, make sure the length of the screw is enough to penetrate at least 0.5 inches (1.3 centimeters) into the second layer.
In addition, specialty drywall screws are designed for specific purposes. For example, when you install drywall onto heavy metal studs, it’s best to use self-drilling drywall screws, eliminating the need to drill holes in advance. Additionally, there are coated drywall screws that protect against corrosion.

How to Choose the Right Drywall Screws:
Drywall screws are a little more expensive, but they do provide a stronger hold. There are many drywall fasteners that come in the form of a Philips head, but they are not all the same in terms of performance and value. The screw you choose will largely depend in the drywall application you have in store, but also on the quality of screw you are looking for. Here are four of the most common drywall screws used to hang gypsum:
1.Self-Drilling - Also used as pan head screws, these are effective for metal stud framing.
2.Course - These have course threads that securely fasten drywall to its studs.
3.Fine - These screws have smaller heads and finer threads that work well to secure gypsum board.
4.Trim-Head - Use these screws to attach wood trim over drywall.

more information link to :https://www.szqtfastener.com