Countersunk Head Screw
Countersunk head screw, also known as flat machine screw, its head is a 90-degree cone, similar to common wood screws. On the surface of the mounting hole on the connector, a 90-degree conical socket is machined, and head of the countersunk head screw is in the socket and is flush with the surface of the connector.
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Product Introduction
Countersunk head screws are a must-have in any toolbox, whether it be for professional use or simple DIY projects. They have a tapered head with a flat top, enabling them to sit flush with the surface of the material they are screwed into. This makes them ideal for applications where a smooth and even surface is required, such as furniture construction, decking, or metalworking.
Our countersunk head screws are manufactured using high-quality materials and advanced technology to ensure they meet the standards required by our customers. Made from tough steel or aluminium, they are rust-resistant and long-lasting, providing an excellent solution for many applications.
One of the essential benefits of countersunk screws is their versatility. They can be used with different materials, including metal, wood, and plastic, making them a handy tool for a variety of projects. They come in various sizes, lengths, and thread types, making it easy to choose the perfect option for your specific needs.
Another benefit of our countersunk head screws is the ease with which they can be installed. They are designed to be fast and straightforward to screw into place, and the tapered head provides a secure fit that will not work its way loose over time. In addition, they are easy to remove, ensuring minimal damage to the material around them.
In any application, quality is essential, and our countersunk head screws are no exception. We take pride in producing the highest quality products that exceed our customers' expectations. Our rigorous quality control protocols ensure that each screw is tested to ensure exceptional strength and durability, so you can rest assured that your projects will withstand the test of time.
Our countersunk head screws are available in a range of finishes, including black oxide, galvanised, or painted, so you can select the most suitable option for your project's aesthetic needs. The finishes not only serve to improve the screw's appearance but also help to protect and extend its lifespan.
We offer a wide range of countersunk head screw options, including flathead, Phillips head or slotted, with different thread types, diameters and lengths, to meet your specific requirements. Our knowledgeable customer service professionals are always available to help you make the right selection and answer any questions you may have.
At our company, we pride ourselves on providing competitive pricing without compromising on quality. We are confident that you will be impressed with our products' quality, durability, and versatility, making them the perfect choice for your project needs.
In conclusion, our countersunk head screws are an excellent option for anyone looking for a versatile, highly-functional, and long-lasting screw solution. Our products' exceptional quality, ease of installation, and competitive pricing make them an ideal choice for professional contractors, DIY enthusiasts, and anyone in between. With our focus on quality and customer service, we are confident that our products will exceed your expectations and become your go-to solution for countersunk head screws.
Countersunk head screw, also known as flat machine screw, its head is a 90-degree cone, similar to common wood screws. On the surface of the mounting hole on the connector, a 90-degree conical socket is machined, and head of the countersunk head screw is in the socket and is flush with the surface of the connector. In addition to countersunk head screws, there are also semi-circle head flat machine screws used in some occasions. This kind of screw is more beautiful and can be used in places where a little protrusion is allowed on the surface.
Flat countersunk head screws are an indispensable necessity in daily life or industrial manufacturing. According to various properties and functions, it is divided into countersunk head socket head cap screws, countersunk head slotted screws, etc.
Production Process of Countersunk Head Screw
Specification of Countersunk Head Screw
Thread d | M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 | |
P | 0,5 | 0,7 | 0,8 | 1 | 1,25 | 1,5 | 1,75 | 2 | 2 | 2,5 | 2,5 | 2,5 | 3 | |
a | 2° | 90° | 60° | |||||||||||
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b | l?125mm | 12 | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 42 | 46 | 50 | 54 |
125<l?200mm | - | - | - | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | |
l>200mm | - | - | - | - | - | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73 | |
c | approx. | 0,2 | 0,3 | 0,3 | 0,3 | 0,4 | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 | 1 | 1 |
dk | nominal=max. | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 27 | 30 | 33 | 36 | 36 | 39 |
min. | 5,7 | 7,64 | 9,64 | 11,57 | 15,57 | 19,48 | 23,48 | 26,48 | 29,48 | 32,38 | 35,38 | 35,38 | 38,38 | |
da | max. | 3,6 | 4,7 | 5,7 | 6,8 | 9,2 | 11,2 | 13,7 | 15,7 | 17,7 | 20,2 | 22,4 | 24,4 | 26,4 |
ds | nominal=max. | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
min. | 2,86 | 3,82 | 4,82 | 5,82 | 7,78 | 9,78 | 11,73 | 13,73 | 15,73 | 17,73 | 19,67 | 21,67 | 23,67 | |
e | min. | 2,3 | 2,87 | 3,44 | 4,58 | 5,72 | 6,86 | 9,15 | 11,43 | 11,43 | 13,72 | 13,72 | 16 | 16 |
k | max. | 1,7 | 2,3 | 2,8 | 3,3 | 4,4 | 5,5 | 6,5 | 7 | 7,5 | 8 | 8,5 | 13,1 | 14 |
r | min. | 0,1 | 0,2 | 0,2 | 0,3 | 0,5 | 0,5 | 1 | 1 | 1 | 1 | 1 | 1 | 1,6 |
s | nominal | 2 | 2,5 | 3 | 4 | 5 | 6 | 8 | 10 | 10 | 12 | 12 | 14 | 14 |
min. | 2,02 | 2,52 | 3,02 | 4,02 | 5,02 | 6,02 | 8,025 | 10,025 | 10,025 | 12,032 | 12,032 | 14,032 | 14,032 | |
max. | 2,1 | 2,6 | 3,1 | 4,12 | 5,14 | 6,14 | 8,175 | 10,175 | 10,175 | 12,212 | 12,212 | 14,212 | 14,212 | |
t | nominal=max. | 1,2 | 1,8 | 2,3 | 2,5 | 3,5 | 4,4 | 4,6 | 4,8 | 5,3 | 5,5 | 5,9 | 8,8 | 10,3 |
min. | 0,95 | 1,5 | 2,05 | 2,25 | 3,2 | 4,1 | 4,3 | 4,5 | 5 | 5,2 | 5,6 | 8,44 | 9,87 | |
Thread d | M3 | M4 | M5 | M6 | M8 | M10 | M12 | |||||||||
l | lengths ls and lg | |||||||||||||||
nominal | min. | max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. |
8 | 7,71 | 8,29 | - | 3,2 | - | 4,4 | - | 5,2 | - | 6,3 |
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10 | 9,71 | 10,29 | - | 3,2 | - | 4,4 | - | 5,2 | - | 6,3 | - | 8,2 |
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12 | 11,65 | 12,35 | - | 3,2 | - | 4,4 | - | 5,2 | - | 6,3 | - | 8,2 | - | 10 |
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16 | 15,65 | 16,35 | - | 3,2 | - | 4,4 | - | 5,2 | - | 6,3 | - | 8,2 | - | 10 |
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20 | 19,58 | 20,42 | - | 3,2 | - | 4,4 | - | 5,2 | - | 6,3 | - | 8,2 | - | 10 | - | 11,8 |
25 | 24,58 | 25,42 | 10,5 | 13 | - | 4,4 | - | 5,2 | - | 6,3 | - | 8,2 | - | 10 | - | 11,8 |
30 | 29,58 | 30,42 | 15,5 | 18 | 12,5 | 16 | - | 5,2 | - | 6,3 | - | 8,2 | - | 10 | - | 11,8 |
35 | 34,5 | 35,5 |
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| 17,5 | 21 | 15 | 19 | - | 6,3 | - | 8,2 | - | 10 | - | 11,8 |
40 | 39,5 | 40,5 |
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| 22,5 | 26 | 20 | 24 | 17 | 22 | - | 8,2 | - | 10 | - | 11,8 |
50 | 49,5 | 50,5 |
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| 30 | 34 | 27 | 32 | 21,7 | 28 | 16,5 | 24 | - | 11,8 |
60 | 59,4 | 60,6 |
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| 31,7 | 38 | 26,5 | 34 | 21,25 | 30 |
70 | 69,4 | 70,6 |
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| 36,5 | 44 | 31,25 | 40 |
Thread d | (M14) | M16 | (M18) | M20 | (M22) | M24 | ||||||||
l | lengths ls and lg | |||||||||||||
nominal | min. | max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. | ls min. | lg max. |
20 | 19,58 | 20,42 |
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25 | 24,58 | 25,42 | - | 13 |
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30 | 29,58 | 30,42 | - | 13 | - | 13,5 |
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35 | 34,5 | 35,5 | - | 13 | - | 13,5 | - | 15,5 | - | 16 |
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40 | 39,5 | 40,5 | - | 13 | - | 13,5 | - | 15,5 | - | 16 | - | 20,6 |
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50 | 49,5 | 50,5 | - | 13 | - | 13,5 | - | 15,5 | - | 16 | - | 20,6 | - | 23 |
60 | 59,4 | 60,6 | 16 | 26 | - | 13,5 | - | 15,5 | - | 16 | - | 20,6 | - | 23 |
70 | 69,4 | 70,6 | 26 | 36 | 22 | 32 | 15,5 | 28 | - | 16 | - | 20,6 | - | 23 |
80 | 79,4 | 80,6 | 36 | 46 | 32 | 42 | 25,5 | 38 | 21,5 | 34 | - | 20,6 | - | 23 |
90 | 89,3 | 90,7 |
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| 42 | 52 | 35,5 | 48 | 31,5 | 44 | 27,5 | 40 | - | 23 |
100 | 99,3 | 100,7 |
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| 45,5 | 58 | 41,5 | 54 | 37,5 | 50 | 31 | 46 |
70 | 69,4 | 70,6 |
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| 36,5 | 44 |
Application Area of Countersunk Head Screw
Flat countersunk head screws can be used in many places, such as electronic products, kitchen supplies, construction, outdoor facilities, office supplies, etc.
How to Buy Countersunk Head Screw from Us?
Inquiry
There are two types of fasteners. One is standard parts, such as DIN7991, flat head countersunk screws. The other is non-standard parts. If you want standard pieces, you can tell the standard, size, grade (material), coating and quantity. For example, you want to buy DIN7991, M10, grade 8.8, galvanized and 20000pcs. If you want non-standard parts, you can show us samples, drawings or detailed instructions. Then our engineers will make technical drawings for you.
Price and payemnt
The price can be price/piece, or price/kg. We can quote EXW, FOB, CFR ,CIF with T/T, L/C, Western Union,etc. Or other ways agreed with customers.
Order
After checking, if the price and lead time are both ok, We will start to produce after advance payment according the requirements we promise.
Quality Insurance
We buy PICC PRODUCTS LIABILITY INSURANCE every year. We can agree in the contract that we will replace the goods or refund the money if there are some quality issues after you get our products. If quality problems happen after use, we will track the goods to deal the problems. And our insurance policy can cover your lost.
FAQ
Q1: Are you a factory or trading company?
A: We are manufacturer of hex bolts and nut for more than 20 years . We have two factories, one in Shanghai and the other in Jiangsu. Our production capacity can be 20000 + tons per year. We can customize our products according to customers' requirements, drawings and samples.
Q2: How many years you do foreign trade?
A: We have more than 20 years experience in exporting products to worldwide countries with our best quality. Now we have exported more than 40 countries, such as Spain, Germany, Italy, Belgium, United Kingdom, Lithuania, USA, Canada, Australia, Singapore,Japan, Thailand, Malaysia, South Korea,Indonesia, Egypt, Philippines and so on.
Q3: Do you have enough outputs?
A: We have enough stock in warehouses with abundant capital. We offer 24-hour services. For most common standards, we have them on stock, such as hex bolts, hex nuts, etc.
Q4: How to ensure that every process's quality?
A: First, we have technical drawings for each product when producing.
Second, our workers most have more than 10-years experience of doing hex bolts.
Third, our QC people will do inspection every 2 hours. If finding the bad parts, they will stop the porduction immediately.
Then,the finished parts will be checked again before shipment which insures every product's quality.
Q5: How to ensure the safety of long-distance transportation?
A: We pack into cartons first, and then pack cartons on pallets. The pallet is very easy to lift by Forklift wihch will protect the cartons from damage. Professional packing teams which keep every packing safely.
Q6: What products can you customize?
A:One is standard parts, such as DIN933, hex bolts. The other is Non-standard parts. If you want standard parts, you can tell the standard, size, grade(material) ,coating and quantity. For example, you want to buy DIN933, M12X60,grade 8.8, zinc plated and 20000pcs.
If you want non-standard parts, you can show us samples, drawings or detail descriptions. Then our engineer will do the technical drawings for you.
There are many, such as hexagon bolts, flange bolts, round head square neck bolts, as well as track bolts, U-bolts, T-bolts, flat head hexagon bolts, hex nuts, hex flange nuts .
Q7: Can you provide some sample?
A: Samples can be provided as your requirements.
Why choose us?
- Our company has a strong reputation for delivering exceptional products and services, and we strive to maintain this reputation through our commitment to excellence.
- Our mission is to bring out a first-class team, create a first-class performance, and show a first-class style!
- Our prices are highly competitive, and we offer flexible payment and delivery options that suit your needs.
- From management to production staff, we are committed to developing and producing a variety of Countersunk Head Screw with the attitude of focusing on quality, improving quality, working efficiently, and being a giant in action.
- We conduct rigorous testing and inspection of our products at every stage of the production process, ensuring that they meet the highest quality standards.
- Our company adheres to the concept of service first, according to the market dynamics and different levels of demand to provide diversified products to meet different customers.
- We are proud of our reputation as a trusted supplier and manufacturer of Machine Screw products, and we work hard every day to maintain this reputation.
- We deepen and develop human resources development management to maximize the discovery and cultivation of talents that fit the company's strategy.
- Our competitive pricing, superior quality, and exceptional customer support make us the ideal partner for your Machine Screw needs.
- We organize production according to scientific management mode to ensure product quality and provide satisfactory service for users.
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