Flat Countersunk Screw

AYA Fasteners (Hebei) Co., Ltd. is one of the most experienced manufacturers and suppliers of flat countersunk screw in China. Please feel free to buy high quality flat countersunk screw made in China here from our factory. For price consultation, contact us.

 

 

As a global supplier of customized fastening solutions, AYA's senvice process is also as close to customers as AYA's products. From describing needs to follow-up services, AYA will promptly and spare no effort to help customers solve any fastening problems that arise, to eliminate the concern of customers.

 

Product Description

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Product Name	Flat Countersunk Screw
Also Named	Self Countersunk Screws
Material	Carbon Steel
Standard	ASME B 18.6.4
Alternative Standard	DIN 7982, ASME B 18.6.5M, JIS B 1125, JIS B 1122
Property Class	A
Diameter	ST3.5×2,ST4.2×2,ST4.8×2,ST5.5×3,ST6.3×3,ST8×4
Finish	Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Head Type	Countersunk Head / Flat Head
Drive Type	PZ Drive
Thread Type	Self-Tapping Screw Thread

 

Flat countersunk screws also known as self-countersunk screws or flat-head screws, a countersunk screw is a type of screw that's designed to rest flush with the object or surface in which it's inserted. They are called "countersunk screws" because they "sink" into objects and surfaces. They feature a flat head that tapers along the shaft.

 

Dimensions Table

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Nominal Diameter d		0#	1#	2#	3#	4#	5#	6#	7#	8#	10#	12#	1/4	5/16
d	Nominal Size	0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1510	0.1640	0.1900	0.2160	0.2500	0.3125
L	min	3/16	3/16	3/16	7/32	1/4	1/4	5/16	3/8	7/16	1/2	9/16	5/8	13/16
dk	max	0.112	0.137	0.162	0.187	0.212	0.237	0.262	0.287	0.312	0.362	0.412	0.477	0.597
	min	0.096	0.120	0.144	0.167	0.191	0.215	0.238	0.262	0.285	0.333	0.380	0.442	0.556
k	Ref.	0.035	0.043	0.051	0.059	0.067	0.075	0.083	0.091	0.100	0.116	0.132	0.153	0.191
M	Ref.	0.062	0.070	0.096	0.100	0.122	0.148	0.168	0.176	0.182	0.198	0.262	0.276	0.358
t	Ref.	0.035	0.043	0.055	0.060	0.081	0.074	0.094	0.102	0.110	0.124	0.144	0.160	0.205
N	Ref.	0.014	0.015	0.017	0.018	0.018	0.027	0.029	0.030	0.030	0.032	0.035	0.036	0.061
Socket No.		0	0	1	1	1	2	2	2	2	2	3	3	4
Penetration depth	max	0.036	0.044	0.056	0.061	0.082	0.075	0.095	0.103	0.110	0.125	0.139	0.154	0.196
	min	0.020	0.028	0.040	0.045	0.066	0.052	0.072	0.080	0.087	0.102	0.116	0.131	0.174

 

 

Product Details

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Product Advantages

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Advantages

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1. The flat head design allows the screw head to sit flush with or slightly below the material's surface. This smooth appearance is not only aesthetics but also prevents the screw head from protruding, thereby avoiding scratches or obstructions during use.

2. Self-tapping screws can create their own threads in the material as they are driven in, eliminating the need for pre-drilling. This makes the installation process quicker and more convenient, especially when used in materials such as wood, plastic, and thin metal.

3. The thread design of flat head self-tapping screws ensures that the screw is securely embedded in the material, providing strong fastening power. This is particularly effective in materials like wood and plastic, where they can form a stable connection, reducing the risk of loosening.

4. The flat head design increases the contact area between the screw head and the material, helping to distribute pressure more evenly. This reduces the risk of material damage due to overtightening.

5. Flat head self-tapping screws are suitable for various applications, particularly in situations requiring a smooth surface and strong fastening, such as furniture assembly, construction, and electronics installation. Their wide range of applications makes them the preferred fasteners for many projects.

6. AYA fastener products are made from high-quality materials and undergo strict production processes and comprehensive quality inspections, ensuring that each product has exceptional performance and durability. This high level of quality not only enhances the stability of the structure but also significantly reduces the frequency and cost of maintenance due to fastener failure.

 

Quality Inspection

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Every link in the production will be supervised by quality control personnel to ensure that the final product meets customer expectations.

Sophisticated testing instruments and experienced quality control personnel can provide customers with more accurate quality inspection reports.

 

Packaging & Container Loading

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AYA's product packaging can not only provide very good protection to the product, but also improve the beauty of the product.

AYA provides custom labeling services.

 

Usage Scenarios

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1. Furniture Manufacturing： Flat countersunk screws are commonly used to connect wooden components. They can be easily embedded into wood or other materials, with the screw head flush with the surface. This ensures that the screw doesn't affect the appearance or comfort of the furniture, making them ideal for high-end furniture products.

2. Wooden Structures: Flat countersunk screws are used to secure wooden boards, brackets, and other components, ensuring a smooth surface that facilitates subsequent construction or decoration.

3. Metalworking: Flat countersunk screws are used to fasten metal sheets together while maintaining a smooth surface. This helps prevent mechanical damage or safety hazards caused by protruding screw heads.

4. Electronics: Flat countersunk screws are used to secure the casings of electronic devices and to install circuit boards or other components. They ensure a flush surface, which is not only aesthetically pleasing but also reduces the risk of damage during transport and use.

5. Automotive Manufacturing: Flat countersunk screws are used to secure interior components and body parts, ensuring that they are flush with the vehicle's surface, enhancing the overall aesthetic.

6. Aerospace Industry: Flat countersunk screws are used to connect various structural components of aircraft or spacecraft. They ensure a smooth surface, reducing air resistance and improving flight performance.

7. Home Improvement Projects: Flat countersunk screws are used in the installation of doors and windows to secure frames and support structures. The flush screw heads make it easier to install seals and other materials, ensuring proper insulation and sealing.

 

Why Choose AYA?

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AYA provides exclusive services to 1000+ members from all over the world every year, with a unique chain service solution system, you only need to click the mouse to get exclusive fastening solution and enjoy door-to-door services.

 

 

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