Explore Premium Stainless Steel Screws: Precision-Engineered for Every Industry

Boltie Fasteners PVT LTD is a trusted stainless steel screw manufacturer and supplier in India, offering a precision-engineered range built for strength, corrosion resistance, and lasting performance. As a leading screw manufacturer in India, we produce SS screws in grades SS 204, SS 304 and SS 316 - covering hex head, socket cap, self-tapping, pan head, CSK, Torx and more. Whether you're sourcing as a project contractor, OEM, or screw supplier network partner, Boltie delivers fasteners that meet DIN and ISO standards with reliable bulk supply across India.

CSK PHILLIP SELF TAPPING SCREW (DIN 7982)

The CSK Phillip Self Tapping Screw (DIN 7982) features a countersunk head and a Phillips drive, providing a flush finish. These screws are used in wood, plastic, and thin metal sheets, offering secure fastening without pre-drilling.

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PAN PHILLIP SELF TAPPING SCREW (DIN 7981)

The Pan Phillip Self Tapping Screw (DIN 7981) features a rounded head and a Phillips drive, making it ideal for securing materials without pre-drilling. These Phillips pan head self-tapping screws are widely used in plastic, wood, and light metals for strong, reliable fastening.

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CSK SLOTTED HEAD SCREW (DIN 963)

The CSK Slotted Head Screw (DIN 963) features a countersunk head and a slotted drive, offering a flush, smooth surface when installed. These CSK slotted screws are used in light mechanical, electronic, and woodworking applications.

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PAN SLOTTED HEAD SCREW (DIN 7971)

The Pan Slotted Head Screw (DIN 7971) features a rounded head with a slotted drive, offering a secure fastening solution in light mechanical and electronic applications. These slotted pan head screws are widely used for their easy installation and reliable performance.

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SLOTTED CHEESE HEAD SCREW (DIN 84)

The Slotted Cheese Head Screw (DIN 84) features a cylindrical, raised head with a slotted drive, providing high torque and secure fastening. These slotted cheese head machine screws are ideal for applications in mechanical assemblies, electronics, and light manufacturing.

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High Performance SS Fasteners with Advanced Technology

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Technical Spec Sheet

Technical Specifications of Stainless Steel Screws

Material	Stainless Steel SS 204, SS 304 and SS 316 (SS 316 contains molybdenum for enhanced chemical and chloride resistance)
Size Range	Metric: M6 to M20 \| Self-tapping: #4 to #14 \| Per DIN, ISO, and IS standards
Standards	DIN 933, DIN 912, DIN 965, DIN 7985, DIN 7983, DIN 7982, DIN 7981, DIN 963, DIN 84, DIN 7380, DIN 7991, DIN 976, DIN 6900, DIN 86
Threads	Metric coarse (standard), metric fine, and self-tapping thread forms available
Head Types	Hex, Pan, CSK (Countersunk), Round, Truss, Button, Slotted Cheese - in Phillips Torx, or Allen drives
Finishes	Passivated (natural mill finish) or bright passivation for enhanced corrosion resistance

Why Boltie Screws

Key Features & Benefits of Stainless Steel Screws

Corrosion Resistance

Stainless steel screws form a self-regenerating chromium oxide layer that protects against rust, moisture, and chemical attack - ideal for outdoor and industrial use.

High Tensile Strength

Engineered to withstand heavy loads, vibration, and thermal stress without deforming or loosening - ensuring long-term joint integrity.

Wide Drive & Head Variety

Available in hex, Phillips, Torx, slotted, and Allen drives across countersunk, pan, truss, and button head profiles - matching any installation requirement.

SS 204, SS 304 & SS 316 Grade Options

SS 204 is a budget-friendly grade suited for light-duty, low-corrosion environments; SS 304 delivers reliable all-purpose corrosion resistance; SS 316 adds molybdenum for superior performance in marine, chemical, and chloride-rich environments.

Precision Thread Accuracy

Manufactured with tight dimensional tolerances per DIN and ISO standards, ensuring smooth thread engagement and consistent clamping force every time.

Low Maintenance & Longevity

Corrosion-resistant composition minimises maintenance needs, reducing lifecycle cost across construction, solar, and infrastructure applications.

Industries We Serve

Applications of Stainless Steel Screws Across Industries

From solar farms to food processing lines, our stainless steel screws hold mission-critical assemblies together - wherever corrosion resistance, hygiene, or structural strength matter.

Solar & Renewable Energy

Self-tapping and hex screws are used in solar module mounting, rail systems, and junction box assembly. SS 316 is recommended for coastal solar installations.

Construction & Infrastructure

Threaded rods, hex head screws, and studs are used in structural steel connections, cladding systems, and civil engineering frameworks.

Marine & Offshore

SS 316 screws provide superior resistance to saltwater and chloride corrosion on docks, ships, offshore rigs, and coastal structures.

Automotive & Machinery

Socket cap, Allen CSK, and Torx screws are used in engine assemblies, gearboxes, and industrial machinery where tight tolerances and vibration resistance are essential.

Electronics & Electrical Panels

Pan head, CSK Phillips, and machine screws secure enclosures, PCB mounts, switchgear panels, and cable trays in electrical infrastructure.

Food Processing & Pharma

Non-toxic, easy-to-clean SS 316 screws meet hygiene standards for food contact surfaces, pharma equipment, and clean-room environments.

Chemical & Process Industries

Corrosion-resistant screws for securing pipework, vessels, and heat exchangers in aggressive chemical processing environments.

Furniture & Architectural

Truss head, button head, and CSK screws provide a flush, aesthetic finish for furniture hardware, facades, and architectural metalwork.

Oil & Gas

High-grade SS 316 screws used in upstream and downstream equipment, pressure fittings, and instrumentation where extreme conditions demand superior corrosion protection.

Frequently Asked Questions

The most common grades used for stainless steel screws are 304 and 316. Grade 304 is known for general corrosion resistance, while Grade 316 provides superior resistance in saltwater or marine environments.
Stainless steel screws are highly resistant to rust and corrosion, but they are not completely rust-proof. In particularly harsh environments, such as exposure to saltwater or chemicals, they may still experience some surface corrosion over time.
Stainless steel screws offer excellent corrosion resistance, durability, and strength. They also have an appealing finish and require less maintenance, making them ideal for long-term applications in outdoor and industrial environments.
Yes, stainless steel screws can be used with aluminum, but care must be taken to avoid galvanic corrosion. Using an anti-seize compound or a barrier between the metals can help prevent this issue.
Stainless steel screws typically do not require additional coatings due to their inherent corrosion resistance. However, some may be coated or treated for enhanced performance, such as for increased lubrication or to improve appearance.

Stainless Steel SCREW

Explore Premium Stainless Steel Screws: Precision-Engineered for Every Industry

CSK PHILLIP SELF TAPPING SCREW (DIN 7982)

PAN PHILLIP SELF TAPPING SCREW (DIN 7981)

CSK SLOTTED HEAD SCREW (DIN 963)

PAN SLOTTED HEAD SCREW (DIN 7971)

SLOTTED CHEESE HEAD SCREW (DIN 84)

High Performance SS Fasteners with Advanced Technology

Looking for Stainless Steel Fasteners: Get Your Quote NOW! of

Technical Specifications of Stainless Steel Screws