Explore Premium Stainless Steel Fasteners: Quality Solutions for Every Industry Need

Boltie Fasteners, a leading nut manufacturer, offers premium stainless steel nut engineered for durable, corrosion-resistant fastening. Made from high-grade alloys (such as SS 304 and SS 316), these nuts offer a combination of superior strength and longevity. Our comprehensive range includes hex nuts, flange nuts, square nuts, weld nuts, lock nuts and more, all designed to meet stringent industrial standards to deliver reliability and performance.

Hex Nut (DIN 934)

Metric

Dia M4 to M16

Read more Quick Quote
Hex Lock NUT (DIN 439)

The Lock Nut (DIN 439) is specifically designed to resist loosening under vibration, making it essential in applications requiring secure fastening.

Read more Quick Quote
Square NUT (DIN 557)

Boltie Fasteners is a leading square nut manufacturer, providing high-quality solutions such as 6mm square nuts and DIN 562 square nuts.

Read more Quick Quote
Hex Weld NUT

The Hex Weld Nut is designed for welding onto metal surfaces, providing secure and permanent fastening. Its robust construction ensures it can handle high-stress applications in industries like automotive, machinery, and construction.

Read more Quick Quote
HEX FLANGE NUT (DIN 6923)

The Hex Flange Nut (DIN 6923) features an integrated flange that acts as a washer, distributing pressure evenly and preventing loosening. These nuts are often used in automotive and machinery applications, where secure fastening is essential under vibration.

Read more Quick Quote
PLAIN WASHER (DIN 125 / DIN 9021 / IS 2016)

The Plain Washer (DIN 125 / DIN 9021 / IS 2016) is a flat, circular disk used to distribute the load of a bolt or screw. These plain washers are essential in preventing damage to surfaces during fastening and are widely used in automotive, construction, and machinery applications.

Read more Quick Quote
SPRING LOCK WASHER (DIN 127 / IS 3063)

The Spring Lock Washer (DIN 127 / IS 3063) is designed to prevent fasteners from loosening due to vibration or torque. These spring washers are commonly used in machinery, automotive, and industrial applications to ensure a secure connection under dynamic loads.

Read more Quick Quote

High Performance SS Fasteners with Advanced Technology

Download Brochure

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

Need Stainless Steel Fasteners? Get a quick quote and see how we can meet your needs efficiently. Contact us now for fast, reliable service!

Technical Spec Sheet

Technical Specifications of Stainless Steel Nuts

Material	Stainless Steel SS204, SS304, and SS316 (with molybdenum) for enhanced resistance to chemicals and chlorides.
Size Range	Metric M4–M16 (Imperial 3/16″–5/8″) per ASTM F594 / ASME SF594.
Standards	Conforms to DIN, ISO, ANSI, ASTM. Includes Hex Nut (DIN 934), Lock Nut (DIN 439), Square Nut (DIN 562/557), Flange Nut (DIN 6923) and Weld Nut.
Threads	Precision coarse or fine threads (UNC, UNF, BSF, UNEF) for secure fitment.
Finishes	Passivated (natural) or plated (bright zinc, black oxide) for added corrosion protection.

Why Boltie Nuts

Key Features & Benefits of Stainless Steel Nuts

Corrosion Resistance

Stainless steel forms a protective oxide layer, keeping nuts rust-free in wet or harsh environments.

High Strength & Durability

Excellent tensile, yield and fatigue strength. Resists wear under heavy loads and temperature extremes.

Heat Resilience

Stainless steel nuts retain mechanical integrity and resist creep at elevated temperatures.

Quality Assured

Manufactured to ASTM/ASME/DIN standards with rigorous tensile, hardness and intergranular corrosion testing.

Eco-Friendly

100% recyclable stainless steel material - sustainability without sacrificing strength.

Industries We Serve

Applications of Stainless Steel Nuts Across Industries

From offshore rigs to renewable-energy farms, our nuts hold mission-critical assemblies together - anywhere strength, hygiene or corrosion resistance matter.

Marine & Offshore

Ideal for saltwater or chemical exposure (SS316) on docks, ships and offshore platforms.

Construction & Infrastructure

Used in structural steel frameworks and architectural fittings where corrosion resistance is critical.

Automotive & Machinery

Securing engine components, chassis and heavy equipment with reliable, maintenance-free joints.

Chemical Processing

Corrosion-resistant nuts secure piping and equipment in harsh chemical environments.

Food & Pharma

Sanitary stainless steel nuts are non-toxic and easy to clean for hygienic applications.

Renewable Energy

High-durability fasteners securing solar arrays and wind turbines against long-term environmental exposure.

Frequently Asked Questions

Yes. Stainless steel nuts form a protective oxide layer that resists rust and corrosion, making them ideal for outdoor or chemical environments.
Boltie Fasteners supplies SS nuts in standard metric and imperial sizes (e.g. M4-M16, 3/16″–5/8″ per ASTM/DIN standards). We offer hex, lock, square and flange nuts in common configurations (DIN 934, 439, 6923, etc.).
We offer SS 304 and SS 316 grades as standard. SS 304 is an all-purpose grade with good corrosion resistance. SS 316 (containing molybdenum) offers superior resistance in marine or chemical environments.
Consider the application and environment. For corrosive or marine conditions, use SS 316 nuts; for normal conditions, SS 304 is cost-effective. Ensure the nut’s size, thread and standard match the mating bolt.

Stainless Steel NUT

Explore Premium Stainless Steel Fasteners: Quality Solutions for Every Industry Need

Hex Nut (DIN 934)

Metric

Hex Lock NUT (DIN 439)

Square NUT (DIN 557)

Hex Weld NUT

HEX FLANGE NUT (DIN 6923)

PLAIN WASHER (DIN 125 / DIN 9021 / IS 2016)

SPRING LOCK WASHER (DIN 127 / IS 3063)

High Performance SS Fasteners with Advanced Technology

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

Technical Specifications of Stainless Steel Nuts