Hex Socket Countersunk Flat Head Screws DIN7991 ISO10642 M3 - M16

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Packaging Details	Small Boxes, Plastic Bags, Bulk in Cartons,
Name	Hex Socket Countersunk Flat Head Screws
Standard	GB/DIN/ASME/EN/ISO&etc.
Head Type	Hex head, flange head , flat head ,CSK Head
Surface treatment	Plain, black, zinc plated，Dacromet/according to your requirement
Grade	8.8,10.9，etc.
Color	Black,Blue,Plain,yellow
Materials	Stainless steel/carbon steel/Alloy steel
Size	accroding your requirements
Length	accroding your requirements
Brand Name	YingYan
Certification	ISO9000
Place of Origin	JIANG SU PROVINCE CHINA
Model Number	M3-M16

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Product Specification


Packaging Details	Small Boxes, Plastic Bags, Bulk in Cartons,	Name	Hex Socket Countersunk Flat Head Screws
Standard	GB/DIN/ASME/EN/ISO&etc.	Head Type	Hex head, flange head , flat head ,CSK Head
Surface treatment	Plain, black, zinc plated，Dacromet/according to your requirement	Grade	8.8,10.9，etc.
Color	Black,Blue,Plain,yellow	Materials	Stainless steel/carbon steel/Alloy steel
Size	accroding your requirements	Length	accroding your requirements
Brand Name	YingYan	Certification	ISO9000
Place of Origin	JIANG SU PROVINCE CHINA	Model Number	M3-M16
High Light	Countersunk Flat Head Screws ，Flat Head Screws DIN7991 ，Hex Socket Countersunk Screw

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
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
dk	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
ds	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
t	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

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Employee Number:

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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, producti... 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, producti...

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Jiangsu Ying Yan Fastening System Technology Co.Ltd
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https://www.fastener-screw.com/

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