HEX HEAD SCREW (DIN 933)

The Hex Head Screw (DIN 933) is a high-performance

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HEX HEAD SEMS SCREW (DIN 6900)

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HEX SOCKET HEAD CAP SCREW (DIN 912)

The Hex Socket Head Cap Screw (DIN 912) is designed for high-torque applications where secure fastening is required. Its hexagonal socket head allows for easy tightening using an Allen wrench, making it a preferred choice for machinery and automotive assemblies.

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ROUND HEAD SLOTTED SCREW (DIN 86)

The Round Head Slotted Screw (DIN 86) is designed with a rounded head and a slotted drive, providing an aesthetically pleasing finish. Commonly used in woodworking and light mechanical applications, these slotted dome head screws ensure secure fastening and easy installation.

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CSK PHILLIP HEAD SCREW (DIN 965)

The CSK Phillip Head Screw (DIN 965) features a countersunk head that sits flush with the surface, providing a smooth finish. Commonly used in electronics, woodworking, and machinery, these CSK Phillips head self-tapping screws offer secure fastening without damaging the surface.

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PAN HEAD MACHINE SCREW (DIN 7985)

The Pan Head Machine Screw (DIN 7985) features a rounded, wide head, offering excellent torque and easy handling. These slotted pan head machine screws are widely used in electronics, appliances, and light mechanical applications, ensuring secure and reliable fastening.

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PAN COMBINATION SCREW (DIN 7985/7983)

The Pan Combination Screw (DIN 7985/7983) combines a slotted and Phillips drive, offering versatility and ease of installation. These screws are used in a wide range of applications, including machinery, electronics, and construction, providing secure and flexible fastening options.

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PAN COMBI WITH WASHER SCREW

The Pan Combi with Washer Screw is a versatile fastener with an integrated washer for even load distribution. These screws are widely used in machinery, construction, and electronics, providing secure and reliable fastening with additional protection against loosening.

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TRUSS HEAD PHILLIP SCREW (DIN 7983)

The Truss Head Phillip Screw (DIN 7983) features a wide, low-profile head with a Phillips drive, offering secure fastening with a clean, finished look. These screws are commonly used in sheet metal, electronics, and construction.

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PAN HEAD TORX SCREW (DIN 7985 TX)

The Pan Head Torx Screw (DIN 7985 TX) features a Torx drive, providing excellent torque transfer and reduced risk of stripping. These Torx pan head screws are ideal for applications requiring high precision and security, such as automotive, electronics, and machinery.

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ALLEN CSK SCREW (DIN 7991)

The Allen CSK Screw (DIN 7991) is designed with a countersunk head and a hexagonal socket, allowing for a flush fit on surfaces. These countersunk Allen head screws are used in machinery, automotive, and industrial applications where a clean, smooth finish is required.

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SOCKET BUTTON HEAD SCREW (DIN 7380)

The Socket Button Head Screw (DIN 7380) features a rounded, low-profile head and a hex socket, making it ideal for high-strength applications that require a clean appearance. These hexagon socket button head cap screws are commonly used in machinery, electronics, and automotive applications.

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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