Cold heading Service

DIN7973 Stainless Steel Slotted Raised Countersunk Head Tapping Screws Manufacturer In China

Ningbo Teng Qi Fasteners Co., Ltd. is a professional manufacturer and supplier of stainless steel DIN7973 slotted raised countersunk head tapping screws. With a complete set of advanced cold heading machines and thread rolling machines, we are capable of producing high-precision, durable fasteners that meet international standards.

We implement strict quality control at every stage of production to ensure reliable performance and dimensional accuracy. Our products are competitively priced, making them a preferred choice for customers seeking both quality and value.

Currently, DIN7973 tapping screws are exported to Europe, North America, the UAE, South Korea, Japan, Australia, and other regions, serving a wide range of industries including electrical, construction, furniture, and machinery. At Ningbo Teng Qi Fasteners Co., Ltd., we are committed to providing high-quality stainless steel fasteners and establishing long-term partnerships with clients around the world.

DIN7973 Stainless Steel Slotted Raised Countersunk Head Tapping Screws
DIN7973 Stainless Steel Slotted Raised Countersunk Head Tapping Screws Factory

Specification:

The specification of DIN7973 Stainless Steel Slotted Raised Countersunk Head Tapping Screws include the following details:

Product nameStainless Steel Slotted Raised Countersunk Head Tapping Screws
Thread Diameter:ST2.2-ST6.3
Material:SS304 SS316
Surface TreatmentPlain/Nylok Patch/Thread Locking
Packaging:Boxes/cartons into wooden pallets
MOQ:500kg/Size

Dimension Chart of DIN7973 Stainless Steel Slotted Raised Countersunk Head Tapping Screws:

DIN7973 Stainless Steel Slotted Raised Countersunk Head Tapping Screws

MonST2.2ST2.9ST3.5ST3.9ST4.2ST4.8ST5.5ST6.3
P0.81.11.31.31.41.61.81.8
a max0.81.11.31.31.41.61.81.8
dk max4.35.56.87.58.19.510.812.4
dk min45.26.447.147.749.1410.3711.97
f0.70.91.21.31.41.51.72
k1.31.72.12.32.533.43.8
n min0.660.861.061.061.261.261.661.66
n max0.811.21.21.511.511.911.91
t min0.951.251.551.71.852.152.452.85
t max1.151.51.92.052.252.62.953.45

Application of DIN7973 Stainless Steel Slotted Raised Countersunk Head Tapping Screws:

DIN7973 stainless steel slotted raised countersunk head tapping screws are self-tapping screws designed with a slotted drive and a raised (oval) countersunk head. This unique head design provides a clean, slightly domed finish while still allowing the screw to sit flush or slightly above the surface. Made from stainless steel, they offer excellent corrosion resistance and durability, making them suitable for a wide range of applications.

ApplicationDetails
Electrical and Electronic DevicesDIN7973 screws are commonly used in electrical panels, enclosures, switchgear, and terminal boxes, where they offer secure fastening with a clean, professional appearance. The slotted head allows for easy manual or powered installation.
Interior and Decorative ConstructionThe raised countersunk head gives a more refined look compared to standard flat countersunk screws, making them suitable for architectural fittings, trim installation, door hardware, and visible fastenings in indoor settings.
Furniture and Cabinet AssemblyThese screws are often used in metal and wood furniture assembly, particularly where aesthetics matter. The raised head design ensures a neat finish, while the self-tapping feature eliminates the need for pre-threaded holes in softer materials.
Marine and Outdoor ApplicationsDIN7973 screws are highly resistant to corrosion, making them suitable for marine equipment, outdoor fixtures, and installations exposed to humidity or saltwater environments.
Sheet Metal and Light FabricationThey are ideal for joining thin metal sheets, plastic parts, or soft alloys, as their threading can cut securely into the material. Common in HVAC systems, ductwork, and small machinery assemblies.