SS 316 LN CSK Screw – Strong, Resist corrosion Fastener by Stainless Bolt Industry The SS 316 LN Countersunk (CSK) Screws from Stainless Bolt Industry, a leading producer and supplier of high-performance fasteners, are made for demanding industrial applications and combine remarkable strength and corrosion resistance. These screws are designed for use in high-corrosion and high-stress situations, such as those found in the petrochemical, chemical processing, maritime, and offshore sectors. They are made of AISI 316LN stainless steel, a nitrogen-enhanced, low-carbon version of the normal 316 grade. The hexagonal Allen drive guarantees a simple and safe installation, and the countersunk design permits flush installations, offering both functional and aesthetic benefits.
The SS 316 LN Countersunk (CSK) Screw is engineered for industries where high corrosion resistance, strength, and secure fastening are essential. This screw is manufactured from AISI 316LN stainless steel, which boasts excellent mechanical qualities and tolerance to stress corrosion cracking and pitting. Its countersunk shape enables the screw to lie flush with the surface, making it a great choice for applications that demand a clean, streamlined finish. With higher tensile strength and a reduced carbon content to prevent the accumulation of carbide during welding, the SS 316 LN Countersunk (CSK) Screw ensures excellent performance and longevity, even in areas subjected to high temperatures and corrosive substances.
| Specification | Details |
| Product Name | SS 316 Ln CSK Screw |
| Material Grade | Stainless Steel 304 (A2) |
| Grade Standard | ASTM A240 / AISI 304 / DIN 933 |
| Head Type | Countersunk |
| Drive Type | Allen (Hex Socket) |
| Size Range | M3 to M36 (custom sizes available upon request) |
| Length Range | Varies by size |
| Outer Diameter | As per DIN/ISO/ASTM standards or custom sizes |
| Thread Pitch | As per standard (custom pitches available) |
| Material Composition | Chromium (Cr): 18-20%, Nickel (Ni): 8-10.5%, Carbon (C): ≤ 0.08%, Manganese (Mn): ≤ 2%, Silicon (Si): ≤ 1% |
| Hardness | 70–95 HRB (Rockwell B Scale) |
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Temperature Resistance | Up to 870°C (1600°F) |
| Surface Finish | Natural, Passivated, Electro-polished |
| Corrosion Resistance | Excellent, ideal for marine, industrial, and outdoor applications |
| Applications | Machinery, Electronics, Automotive, Marine, Furniture, Construction |
