Stainless Steel Fasteners

Stainless steel fasteners are high-performance threaded components used to join, secure, and assemble structural and industrial components. These components, also known as SS fasteners, are manufactured from chromium-based iron alloys with chromium content ranging between 10.5% to 30%, and are often combined with nickel, molybdenum, and nitrogen depending on the grade. The mechanical properties depend on grade, with tensile strength of about 515 MPa (Grade 304) to more than 860 MPa (Grade 17-4 PH). These properties include an oxide coating on the surface, which provides corrosion resistance, making stainless steel fasteners the preferred choice in the construction, chemical processing, marine, food and beverage, pharmaceutical, and oil and gas industries.

Stainless Steel Fasteners Price

The price of stainless steel fasteners depends on the grade, size, and order quantity. Below are the factors mentioned that affect the final cost of the product: 

Approximate Price Range

Stainless steel fasteners are usually priced between Rs. 210 and Rs. 1800 per kg, depending on the grade, size, and order quantity. The standard grades like 304 and 316 are generally affordable in cost, while special alloys, custom sizes, and certified products are more expensive.

Factors Affecting Price

The factors that determine the cost of stainless steel fasteners are that the higher alloy grades, such as 316L or 317L, are costlier than the 304 grade due to the higher amount of nickel and molybdenum content. Larger or more complex fasteners cost more as they require more material, while buying in bulk from a reliable suppliers often reduces the price per piece. The market price of nickel, chromium, and molybdenum also affects the final price. In addition, specifications like mill test reports (MTRs), third-party inspection, NACE MR0175, and special surface treatments further increase overall procurement costs.

Stainless Steel Fastener Grades

The Stainless steel fasteners are available in more than 50 standard alloy grades, each consisting of specific chemical compositions, corrosion resistance ratings, and mechanical performance. The grades available are:

• Stainless Steel SMO 254 Fasteners
• Stainless Steel 316N Fasteners
• Stainless Steel 304L Fasteners
• Stainless Steel 304H Fasteners
• Stainless Steel 316L Fasteners
• Stainless Steel 430F Fasteners
• Stainless Steel 384 Fasteners
• Stainless Steel 442 Fasteners
• Stainless Steel 314 Fasteners
• Stainless Steel 440B Fasteners
• Stainless Steel 316F Fasteners
• Stainless Steel 303 Fasteners
• Stainless Steel 316Ti Fasteners
• Stainless Steel 321H Fasteners
• Stainless Steel 301 Fasteners
• Stainless Steel 316H Fasteners
• Stainless Steel 304 Fasteners
• Stainless Steel 414 Fasteners
• Stainless Steel 420 Fasteners
• Stainless Steel 303 Se Fasteners
• Stainless Steel 347H Fasteners
• Stainless Steel 430 Fasteners
• Stainless Steel 436 Fasteners
• Stainless Steel 308 Fasteners
• Stainless Steel 316 Fasteners
• Stainless Steel 309S Fasteners
• Stainless Steel 317 Fasteners
• Stainless Steel 309 Fasteners
• Stainless Steel 201 Fasteners
• Stainless Steel 416 Fasteners
• Stainless Steel 403 Fasteners
• Stainless Steel 440A Fasteners
• Stainless Steel 430F Se Fasteners
• Stainless Steel 330 Fasteners
• Stainless Steel 302B Fasteners
• Stainless Steel 304N Fasteners
• Stainless Steel 321 Fasteners
• Stainless Steel 317L Fasteners
• Stainless Steel 440C Fasteners
• Stainless Steel 431 Fasteners
• Stainless Steel 405 Fasteners
• Stainless Steel 410 Fasteners
• Stainless Steel 422 Fasteners
• Stainless Steel 348 Fasteners
• Stainless Steel 409 Fasteners
• Stainless Steel 310 Fasteners
• Stainless Steel 310S Fasteners
• Stainless Steel 302 Fasteners
• Stainless Steel 420F Fasteners
• Stainless Steel 434 Fasteners
• Stainless Steel 202 Fasteners
• Stainless Steel 329 Fasteners
• Stainless Steel 305 Fasteners
• Stainless Steel 347 Fasteners
• Stainless Steel 310H Fasteners
• Stainless Steel 446 Fasteners
• Stainless Steel 429 Fasteners
• Stainless Steel 253MA Fasteners
• Stainless Steel 17-7 PH Fasteners
• Stainless Steel 17-4 PH Fasteners

Types Of Stainless Steel Fasteners

Stainless steel fasteners are available in 11 common product types, which address threaded, bolted, and structural connection requirements in industrial and commercial applications.

• Hex Bolts
• Carriage Bolts
• All-Thread Stud Bolts
• Flange Bolts
• Machine Screws
• Wood Screws
• Self-Tapping/Self-Drilling Screws
• Deck Screws
• Drywall Screws
• Hex Nuts
• Washers

Stainless Steel Fasteners Specifications

The table below covers all key technical parameters for stainless steel fasteners, from product scope and material grade to applicable standards and service conditions.

Stainless Steel Fasteners Size Chart

Stainless steel fasteners are available from M3 to M24 in metric sizing, covering light assembly to heavy structural bolting requirements. Use the chart below to select the correct nominal size for the application.

Schedule Chart Of Stainless Steel Fasteners

The chart below maps each imperial nominal size to common fastener types, available length ranges, and typical service schedules for stainless steel fasteners.

Key Features Of Stainless Steel Fasteners

Stainless steel fasteners offer 9 key performance advantages that make them the standard choice across demanding industrial environments.

• Corrosion Resistance
• High Strength and Durability
• Temperature Resistance
• Aesthetic Appeal
• Low Maintenance
• Non-Magnetic Properties
• Versatility
• Environmental Resistance
• Resistance to Stress Corrosion Cracking (SCC)

Applications Of Stainless Steel Fasteners

Stainless steel fasteners are specified across 13 industries where mechanical integrity, hygiene, and corrosion resistance are non-negotiable requirements.

• Construction and Infrastructure
• Automotive Industry
• Marine Applications
• Aerospace Industry
• Food and Beverage Industry
• Chemical Processing
• Medical Devices
• Oil and Gas Industry
• Architectural Applications
• Household Appliances
• Nuclear Power
• Desalination Plants
• Pulp and Paper Industry

How to choose the right stainless steel fasteners supplier and manufacturer?

Before choosing the right stainless steel fastener manufacturers and suppliers, it is essential to check the material traceability, project schedules, and long-term performance. Evaluate that each supplier and manufacturer meets the following in 4 criteria.

Choosing the right supplier and manufacturer

Select a high alloy fastener manufacturer in India who specialises in high alloy fasteners rather than general purpose fasteners. A good supplier will have stock ready, be ISO 9001 certified, and have full material traceability with mill test reports (MTRs).

Technical Considerations

Make sure the supplier provides the correct grade (304, 316, 316L, 321, 347, or speciality grades), size range (M3 to M100 or 1/4" to 1-1/4"), thread form (Metric, UNC, UNF, BSW, or BSF), and applicable standard (ASTM F593, F594, or BS EN ISO 3506). When ordering offshore, chemical, or pressure service, ask for compliance documents.

Evaluating supplier credibility

Quality assurance is verified by third-party certification such as IBR, PED, Lloyd's Register & Bureau Veritas. Do not obtain fasteners for critical piping or pressure systems without checking these documents. A full certificate package should be included with every order; this should comprise dimensional inspection reports and heat certificates.

Procurement strategy

If buying large quantities or on a project basis, check price consistency, flexibility of order, and delivery times. For critical applications, request pre-dispatch dimensional and hydrostatic testing. Also, check the packing specifications (wooden crates, fumigated packing if exported) and verify shipping documentation before dispatch.