China best China Factory Custom Anodized Aluminium Balls Flagpole Ball Top Ornament Satin Aluminum Ball near me supplier

Product Description

 

Product Description

Product name  Flagpole Ball
Material carbon steel(cold rolled steel sheet,galvanized steel sheet),stainless steel,copper,brass,aluminum,etc
Surface treatment All kinds of surface treatment is anodizing, zinc plating, black oxide, chrome plating, powder coating, ect
Size According to customer’s design or samples
Color Customized Color

 

Product Parameters

Certifications

Packaging & Shipping

Company Profile

 

Our company was founded in 2000, specialized in customize springs, axles, screws, plastic/metal stamping parts, CNC machining parts and auto lathe parts. Our main production modes are designing and proofing based on drawings, concepts and samples provided by customers. We provide samples for customers for review, verification and confirmation and then put into production as follows:

 

Our company has 5,000 square meters of production workshops and more than 120 employees divided into 4 workshops – spring / stamping / screw / axle:

1) Spring Department: with 20 sets of 502 computer omnipotent machines, 12 sets of computerized compression spring machines and supporting heat treatment / projector / pull pressure test machines. Daily output: 300,000 pieces of profiled springs and 800,000 pieces of compression springs.
2) Stamping Department: with 25 sets of 10T-45T punches, 3 sets of wire cutting machines and a full set of hardware stamping mold equipment. Providing a full set of services, including proofing, molding, design and stamping. Daily output: 1,200,000 pieces of various types of metal stamping parts.
3) Screw Department: with 45 sets of 0# – 2.5# heading / roll machines. Daily output: 3,000,000 pieces of M1.2 ~ M8 3.5MM ~ 120MM plastic and alloy screws, tacks and rivets.
4) Axle Department: with 21 sets of semi-automatic / automatic toy axle machines. Daily output: 2,000,000 pieces of #1.0 ~ #8.0 various axes / rubbing spent axes.

Quality Control Product Technology
we stress the concept of “quality is the life of our enterprise”, using the first 3 pieces product inspection and the whole production inspection ways for strict quality control. Following the requests of RoHS and Heavy Element, we send products to the third party notarization institute for internationally recognized inspection, with complete inspection report. Our factory has our own salt spray machines and can test all kinds of metal surface treatment of anti-rust effect, in order to ensure the quality of our products. our factory has a group of professional engineering and technical personnel in the processes of design and production, providing professional advice, converting the concepts from guests into controlled products and helping customers to solve professional problems and reduce the production costs. Each department has a number of professional chefs, with the most advanced equipment in the industry, improving our efficiency, quality and stability to produce high quality and inexpensive products.

Processes Credibility
In the processes of following up samples / production, we have a number of sales personnel who will make all-out efforts and make quality / delivery / price / needs as per your requirements to meet your expectations as far as possible. In the terms of credibility, we guarantee the quality of our products, adhere to business ethics and keep commercial secrets.

 

FAQ

1. who are we?
We are based in ZheJiang , China, start from 2018,sell to North America(30.00%),Domestic Market(30.00%),Western Europe(10.00%),Northern Europe(9.00%),Oceania(5.00%),Southern Europe(5.00%),South America(4.00%),Southeast Asia(3.00%),Eastern Europe(00.00%),Africa(00.00%),Mid East(00.00%),Central America(00.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Hardware Products (Stamping Part,Auto Lathe & CNC Turning Parts,CNC Milling Parts,Spring,Shaft,Fastener)

4. why should you buy from us not from other suppliers?
Our company was established in 2000, with over 18 years manufacture experience. We customize high precision metal fittings. Our specialities are: Metal/Plastic Stamping Parts CNC Machining Parts CNC Lathe Parts Springs ,nuts ,screw,bolts etc fasteners

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese

Screw Sizes and Their Uses

Screws have different sizes and features. This article will discuss screw sizes and their uses. There are 2 main types: right-handed and left-handed screw shafts. Each screw features a point that drills into the object. Flat tipped screws, on the other hand, need a pre-drilled hole. These screw sizes are determined by the major and minor diameters. To determine which size of screw you need, measure the diameter of the hole and the screw bolt’s thread depth.

The major diameter of a screw shaft

The major diameter of a screw shaft is the distance from the outer edge of the thread on 1 side to the tip of the other. The minor diameter is the inner smooth part of the screw shaft. The major diameter of a screw is typically between 2 and 16 inches. A screw with a pointy tip has a smaller major diameter than 1 without. In addition, a screw with a larger major diameter will have a wider head and drive.
The thread of a screw is usually characterized by its pitch and angle of engagement. The pitch is the angle formed by the helix of a thread, while the crest forms the surface of the thread corresponding to the major diameter of the screw. The pitch angle is the angle between the gear axis and the pitch surface. Screws without self-locking threads have multiple starts, or helical threads.
The pitch is a crucial component of a screw’s threading system. Pitch is the distance from a given thread point to the corresponding point of the next thread on the same shaft. The pitch line is 1 element of pitch diameter. The pitch line, or lead, is a crucial dimension for the thread of a screw, as it controls the amount of thread that will advance during a single turn.
screwshaft

The pitch diameter of a screw shaft

When choosing the appropriate screw, it is important to know its pitch diameter and pitch line. The pitch line designates the distance between adjacent thread sides. The pitch diameter is also known as the mean area of the screw shaft. Both of these dimensions are important when choosing the correct screw. A screw with a pitch of 1/8 will have a mechanical advantage of 6.3. For more information, consult an application engineer at Roton.
The pitch diameter of a screw shaft is measured as the distance between the crest and the root of the thread. Threads that are too long or too short will not fit together in an assembly. To measure pitch, use a measuring tool with a metric scale. If the pitch is too small, it will cause the screw to loosen or get stuck. Increasing the pitch will prevent this problem. As a result, screw diameter is critical.
The pitch diameter of a screw shaft is measured from the crest of 1 thread to the corresponding point on the next thread. Measurement is made from 1 thread to another, which is then measured using the pitch. Alternatively, the pitch diameter can be approximated by averaging the major and minor diameters. In most cases, the pitch diameter of a screw shaft is equal to the difference between the two.

The thread depth of a screw shaft

Often referred to as the major diameter, the thread depth is the outermost diameter of the screw. To measure the thread depth of a screw, use a steel rule, micrometer, or caliper. In general, the first number in the thread designation indicates the major diameter of the thread. If a section of the screw is worn, the thread depth will be smaller, and vice versa. Therefore, it is good practice to measure the section of the screw that receives the least amount of use.
In screw manufacturing, the thread depth is measured from the crest of the screw to the root. The pitch diameter is halfway between the major and minor diameters. The lead diameter represents the amount of linear distance traveled in 1 revolution. As the lead increases, the load capacity decreases. This measurement is primarily used in the construction of screws. However, it should not be used for precision machines. The thread depth of a screw shaft is essential for achieving accurate screw installation.
To measure the thread depth of a screw shaft, the manufacturer must first determine how much material the thread is exposed to. If the thread is exposed to side loads, it can cause the nut to wedge. Because the nut will be side loaded, its thread flanks will contact the nut. The less clearance between the nut and the screw, the lower the clearance between the nut and the screw. However, if the thread is centralized, there is no risk of the nut wedgeing.
screwshaft

The lead of a screw shaft

Pitch and lead are 2 measurements of a screw’s linear distance per turn. They’re often used interchangeably, but their definitions are not the same. The difference between them lies in the axial distance between adjacent threads. For single-start screws, the pitch is equal to the lead, while the lead of a multi-start screw is greater than the pitch. This difference is often referred to as backlash.
There are 2 ways to calculate the pitch and lead of a screw. For single-start screws, the lead and pitch are equal. Multiple-start screws, on the other hand, have multiple starts. The pitch of a multiple-start screw is the same as its lead, but with 2 or more threads running the length of the screw shaft. A square-thread screw is a better choice in applications requiring high load-bearing capacity and minimal friction losses.
The PV curve defines the safe operating limits of lead screw assemblies. It describes the inverse relationship between contact surface pressure and sliding velocity. As the load increases, the lead screw assembly must slow down in order to prevent irreversible damage from frictional heat. Furthermore, a lead screw assembly with a polymer nut must reduce rpm as the load increases. The more speed, the lower the load capacity. But, the PV factor must be below the maximum allowed value of the material used to make the screw shaft.

The thread angle of a screw shaft

The angle between the axes of a thread and the helix of a thread is called the thread angle. A unified thread has a 60-degree angle in all directions. Screws can have either a tapped hole or a captive screw. The screw pitch is measured in millimeters (mm) and is usually equal to the screw major diameter. In most cases, the thread angle will be equal to 60-degrees.
Screws with different angles have various degrees of thread. Originally, this was a problem because of the inconsistency in the threading. However, Sellers’s thread was easier to manufacture and was soon adopted as a standard throughout the United States. The United States government began to adopt this thread standard in the mid-1800s, and several influential corporations in the railroad industry endorsed it. The resulting standard is called the United States Standard thread, and it became part of the ASA’s Vol. 1 publication.
There are 2 types of screw threads: coarse and fine. The latter is easier to tighten and achieves tension at lower torques. On the other hand, the coarse thread is deeper than the fine one, making it easier to apply torque to the screw. The thread angle of a screw shaft will vary from bolt to bolt, but they will both fit in the same screw. This makes it easier to select the correct screw.
screwshaft

The tapped hole (or nut) into which the screw fits

A screw can be re-threaded without having to replace it altogether. The process is different than that of a standard bolt, because it requires threading and tapping. The size of a screw is typically specified by its major and minor diameters, which is the inside distance between threads. The thread pitch, which is the distance between each thread, is also specified. Thread pitch is often expressed in threads per inch.
Screws and bolts have different thread pitches. A coarse thread has fewer threads per inch and a longer distance between threads. It is therefore larger in diameter and longer than the material it is screwed into. A coarse thread is often designated with an “A” or “B” letter. The latter is generally used in smaller-scale metalworking applications. The class of threading is called a “threaded hole” and is designated by a letter.
A tapped hole is often a complication. There is a wide range of variations between the sizes of threaded holes and nut threads, so the tapped hole is a critical dimension in many applications. However, even if you choose a threaded screw that meets the requisite tolerance, there may be a mismatch in the thread pitch. This can prevent the screw from freely rotating.

China best China Factory Custom Anodized Aluminium Balls Flagpole Ball Top Ornament Satin Aluminum Ball   near me supplier China best China Factory Custom Anodized Aluminium Balls Flagpole Ball Top Ornament Satin Aluminum Ball   near me supplier

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