DIN7991 Stainless Steel Hex Socket Countersunk Head Cap Screws Manufacturer In China

Ningbo Teng Qi Fasteners Co., Ltd. is a leading manufacturer and supplier of high-quality DIN7991 stainless steel hex socket countersunk head cap screws. We specialize in the cold heading of superior-grade 304 and 316 stainless steel to produce precision fasteners that meet the highest industry standards. Our screws are carefully produced to ensure they meet critical size, go/no-go gauge, and surface treatment requirements, providing dependable performance in a variety of applications.

Widely used in industries such as construction, automotive, electronics, machinery, and renewable energy, where reliability and strength are paramount. We export to numerous countries across Europe and North America, and our global clients appreciate our commitment to quality, competitive pricing, and timely delivery. Whether you require standard or custom solutions, our engineering expertise manufacturing processes will meet a diverse range of customer needs.

DIN7991 SS316 Hex Socket Countersunk Head Cap Screws Factory

DIN7991 SS304 Hex Socket Countersunk Head Cap Screws Supplier.jpg

Specification:

The specification of DIN7991 Stainless Steel Hex Socket Countersunk Head Cap Screws include the following details:

Product name	DIN7991 Stainless Steel Hex Socket Countersunk Head Cap Screws
Thread Diameter:	M2-M12
Material:	SS304 SS316
Surface Treatment	Plain/Nylok Patch/Thread Locking(3M, Loctite，Precote)
Packaging:	Boxes/cartons into wooden pallets
MOQ:	500kg/Size

Dimension Chart of DIN7991 Stainless Steel Hex Socket Countersunk Head Cap Screws:

Drawing of DIN7991 Hexagon socket countersunk head screws

Thread Diameter	M3	M4	M5	M6	M8	M10	M12
P	0.5	0.7	0.8	1	1.25	1.5	1.75
dk max	6	8	10	12	16	20	24
dk min	5.7	7.64	9.64	11.57	15.57	19.48	23.48
e min	2.3	2.87	3.44	4.58	5.72	6.86	9.15
k max	1.7	2.3	2.8	3.3	4.4	5.5	6.5
s min	2.02	2.52	3.02	4.02	5.02	6.02	8.025
s max	2.1	2.6	3.1	4.12	5.14	6.14	8.175
t max	1.2	1.8	2.3	2.5	3.5	4.4	4.6
t min	0.95	1.55	2.05	2.25	3.2	4.1	4.3

Application of DIN7991 Stainless Steel Hex Socket Countersunk Head Cap Screws:

DIN7991 Stainless Steel Hex Socket Countersunk Head Cap Screws are widely used in various industries due to their corrosion resistance, mechanical strength, and sleek design. Below is an organized list of their common applications along with examples:

Application	Details
Machinery and Equipment Assembly:	Used in the assembly of machines and equipment where a smooth, low-profile head is necessary to avoid interference with moving parts. Common in manufacturing machinery, robotics, and automation systems.
Electronics and Electrical Equipment:	Ideal for fastening components in electronic devices where space is limited and a clean, aesthetic appearance is required. Examples include consumer electronics, communication devices, and electrical enclosures.
Marine Applications:	Highly resistant to saltwater corrosion, making them ideal for marine hardware and equipment such as boat fixtures, deck fittings, and anchoring systems.
Medical and Pharmaceutical Equipment:	Commonly found in medical devices and pharmaceutical machinery due to their non-reactive and durable nature. Examples include surgical instruments, diagnostic equipment, and laboratory apparatus.
Furniture and Interior Design:	Frequently used in furniture assembly and decorative structures where a smooth, low-profile finish is desired. Examples include modular furniture, architectural hardware, and decorative fixtures.
Industrial and Construction Projects:	Used in industrial frameworks and construction projects that require strong, corrosion-resistant fasteners. Applications include steel frameworks, fastening safety railings, and conveyor systems.