Product Details
DIN7991 ISO10642 M3-M16 Hex Socket Countersunk Flat Head Screws
SUS304 Carbon Steel 10B21/10B28/35K Aolly Steel SCM435
Characteristics:
- Head Design: These screws feature a hex socket countersunk head, allowing
installation and removal using a hex key, providing easier
maneuverability.
- Material and Hardness: They are often made of high-strength materials like alloy steel,
ensuring excellent mechanical properties and durability. Their high
hardness rating allows them to withstand significant loads.
- Surface Treatment: The screw surfaces usually undergo special treatments, such as
blackening, to enhance corrosion resistance and aesthetics.
- Standardized Production: These screws typically follow international standards (e.g., DIN,
JIS), ensuring quality consistency and interchangeability.
- Variety of Sizes: Available in a range of sizes and specifications to suit
different applications.
Advantages:
- Ease of Operation: The hex socket countersunk head design facilitates easy
installation and removal, improving work efficiency.
- High Strength: Thanks to high-strength materials and specific heat treatment
processes, these screws can withstand considerable tensile and
shear forces.
- Good Corrosion Resistance: The specially treated surface offers excellent resistance to
corrosion, extending the screws' lifespan.
- Wide Applicability: Standardized production and a variety of sizes make these screws
suitable for various machinery and product structures.
Applications:
- Mechanical Engineering: Widely used in machinery to connect and secure various
components, ensuring stability and reliability.
- Automobile Manufacturing: In the automotive industry, these screws are employed to connect
critical parts like the car body and engine.
- Electronic Equipment: Used to fasten circuit boards, heatsinks, and other essential
components in electronic devices.
- Construction Industry: Applied in connecting steel structures, fixing equipment, and
other architectural elements.
- Aerospace: Due to their high strength and reliability, these screws are
extensively used in aerospace, securing crucial parts of aircraft
and spacecraft.
Screw Thread d | M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 |
|
P | Pitch | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 |
α | tol.(+2) | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 60° | 60° |
b | L≤125 | 12 | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 42 | 46 | 50 | 54 |
125<L ≤ 200 | / | / | / | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 |
L>200 | / | / | / | / | / | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73 |
dk | max=nominal size | 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 |
ds | max=nominal size | 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 |
s | Nominal Size | 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 | max=nominal size | 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 | 1.55 | 2.05 | 2.25 | 3.2 | 4.1 | 4.3 | 4.5 | 5 | 5.2 | 5.6 | 8.44 | 9.87 |
Company Profile
Jiangsu Ying Yan Fastening System Technology Co. Ltd was founded in
2002. It is located in Wujiang Fenhu High-tech Industrial
Development Zone, Suzhou City. It has a superior geographical
location and convenient transportation. It is a professional
fastener manufacturer integrating R&D, production and sales
manufacturer. The company has established a complete quality
management system, invested heavily in the establishment of R&D
technology centers, introduced high-tech talents, and used the ERP
system for efficient and orderly management. The company has been
adhering to the principle of mutual benefit and win-win cooperation
with customers from different industries for many years. The value
and significance of an enterprise do not lie in the so-called
success for a while, but in the ability to create more social value
and assume social responsibility while continuously creating
economic value.
In the 24 years of development, Jiangsu Ying Yan Fastening System
Technology Co. Ltd has always adhered to the development concept of
"creating excellent quality with the heart of a craftsman", and
also adhered to the operating principle of "innovation, quality,
service, gratitude" to absorb New ideas, strict quality control,
all-round service for the purpose. With the continuous development
and growth of the company, we will continue to pursue the above
concepts, principles and purposes, use the wisdom created by
ingenuity to create fastener products, provide competitive
industrial product solution services, and continue to create the
greatest value for customers. Value, become the ultimate choice for
end customers.
Persevere in building Yingyan fastening system technology into a
benchmark enterprise in the domestic and foreign fastener industry,
and write the industry legend of domestic fastener products!