Sirius A4 316 Stainless Steel Nyloc Nuts

The Sirius A4 316 Stainless Steel Nyloc Nut in M20 is a large-format, heavy-duty self-locking fastener designed for high-load structural and industrial applications. The M20 size is specified for demanding tasks such as heavy structural steelwork, marine engineering, offshore equipment, large-scale civil installations and industrial machinery where maximum holding strength and corrosion resistance are non-negotiable.

Manufactured from A4 316 stainless steel, it delivers outstanding resistance to corrosion, saltwater and aggressive chemicals, ensuring dependable long-term performance even in the harshest environments. The integrated nylon insert locks securely onto M20 bolt threads, preventing loosening under extreme vibration and heavy dynamic loads without causing thread damage. Suitable for professional engineers, fabricators and marine contractors working on large-scale projects.

Features and Benefits:
• Manufactured from premium A4 316 stainless steel
• Exceptional resistance to corrosion, saltwater and chemicals
• Integrated nylon insert prevents loosening from vibration
• Self-locking design provides secure, long-lasting fastening
• Precision metric threads for reliable engagement
• Compatible with matching metric bolts, set screws and threaded rod
• Suitable for marine, industrial and outdoor environments
• Easy installation using standard spanners or sockets
• Long-lasting, maintenance-free finish
• Suitable for professional and DIY use