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Stainless Steel 304 Ln Cap Screw

Premium-grade SS 304 LN Cap Screws are available from Stainless Bolt Industries. These screws are made especially for demanding applications that require superior mechanical performance and good corrosion resistance at elevated or cold temperatures. These screws offer enhanced strength, better weldability, and superior resistance to stress corrosion cracking because they are made of Stainless Steel 304LN, a nitrogen-enhanced version of regular 304 stainless steel. The low carbon concentration (denoted by the "L") assures minimum carbide precipitation during welding, while nitrogen addition increases the material’s tensile strength. SS 304 LN Cap Screws are suited for use in chemical processing plants, marine buildings, cryogenic systems, and high-pressure equipment, where long-term durability and stability under extreme conditions are necessary. Every fastener at Stainless Bolt Industries is expertly designed to satisfy global standards.

Stainless Steel Nuts

Why Choose Our SS 304 Ln Cap Screw

Stainless Steel Nuts

For the most demanding settings, selecting SS 304 LN Cap Screws from YourCompanyName means selecting accuracy, dependability, and performance. The nitrogen-enhanced low-carbon stainless steel used to make our cap screws offers a special blend of superior corrosion resistance, high tensile strength, and enhanced performance at both high and cold temperatures. Our SS 304 LN Cap Screws, in contrast to ordinary fasteners, are made especially for crucial industrial uses, such as chemical processing, offshore structures, marine systems, and pressure vessels. We offer more than simply a product—we offer total technical assurance, complete material traceability, customization choices, and Material Test Certificates (MTC) upon request. Beyond just fasteners, Stainless Bolt Industries offers confidence supported by prompt service and knowledgeable assistance.

Key Features of Our SS 304 Ln Cap Screw

We offer an extensive selection of SS 304 Ln Cap Screw , designed to meet the diverse fastening needs of various industries. Here's why our SS 304 Ln Cap Screw stand out :

  • Nitrogen-Enhanced Strength
  • Low Carbon Content (L Grade)
  • Excellent Corrosion Resistance
  • Superior Performance at Extreme Temperatures
  • Non-Magnetic in Annealed State
  • Compliance with Global Standards
  • Material Test Certificates (MTC)

Chemical Specification of SS 304LN Cap Screws:

Element Content (%)
Carbon (C)≤ 0.030
Manganese (Mn)≤ 2.00
Phosphorus (P)≤ 0.045
Sulfur (S)≤ 0.030
Silicon (Si)≤ 1.00
Element Content (%)
Chromium (Cr)18.0 – 20.0
Nickel (Ni)8.0 – 12.0
Nitrogen (N)0.10 – 0.16
Iron (Fe)Balance

Technical Specification of SS 304LN Cap Screws :

Name Specification
Product Name SS 304LN Cap Screw
Material Stainless Steel 304LN (Low Carbon with Nitrogen)
Grade Standard ASTM A193 B8LN / DIN 912 / ISO 4762
Type Allen Cap Screw / Socket Head Cap Screw
Size Range M3 to M24 (custom sizes available on request)
Thread Type Full Thread / Partial Thread
Thread Standard Metric (MM), UNC, UNF
Surface Finish Natural / Passivated / Electro-polished
Tensile Strength ≥ 550 MPa
Yield Strength ≥ 240 MPa
Hardness ≤ 95 HRB (Rockwell B Scale)
Elongation ≥ 40%
Operating Temperature -196°C to +870°C
Corrosion Resistance Excellent; suitable for marine, chemical, and industrial use
Magnetic Properties Non-magnetic in annealed condition
Standards Complied ASTM A193 B8LN, DIN 912, ISO 4762
Applications Pressure vessels, Chemical plants, Marine, Cryogenic systems, Construction

Frequently Asked Questions – SS 304 Ln Cap Screw

SS 304LN is a nitrogen-strengthened, low-carbon version of 304 stainless steel. The low carbon content improves weldability, while the nitrogen enhances strength and corrosion resistance

These screws are ideal for marine, chemical processing, cryogenic equipment, pressure vessels, and high-temperature environments, thanks to their superior strength and corrosion resistance

SS 304LN has lower carbon (to prevent carbide precipitation during welding) and added nitrogen, which increases its mechanical strength and resistance to stress corrosion cracking—especially important in corrosive or extreme environments.

Yes, At Stainless Bolt Industries We are provide custom sizes, thicknesses, and surface finishes based on your project requirements. Contact us for detailed specifications.

Yes, the low carbon content of SS 304LN makes it ideal for welding, reducing the risk of sensitization and intergranular corrosion.