Overview
The 18-8SS 1-F-50C finished hex nuts are precision-manufactured stainless steel fasteners designed for 1/2″-13 UNC threaded applications. Grade 304 (18-8) stainless steel construction provides excellent corrosion resistance and tensile strength in industrial, construction, marine, and commercial environments. Each box contains 25 units ready for immediate deployment.
Key Features
- Material: Grade 304 (18-8) stainless steel for superior corrosion resistance
- Thread Size: 1/2″-13 UNC (Unified National Coarse)
- Finish Type: Finished (polished) hex nut with standard hex head configuration
- Quantity: Box of 25 units
- Design: Standard six-sided hex drive for easy tightening with wrench or socket
- Applications: Industrial fastening, marine hardware, construction, machinery assembly
Technical Specifications
- Nominal Size: 1/2″ diameter
- Thread Pitch: 13 TPI (threads per inch)
- Thread Standard: UNC (Unified National Coarse)
- Material Grade: 304 Stainless Steel (18-8)
- Width Across Flats (WAF): Approximately 0.75″ (standard for 1/2″ size)
- Head Height: Standard hex nut proportions
- Surface Finish: Polished/Finished
- Tensile Strength: 304 stainless nominal minimum 70 ksi
- Packaging: Box of 25 units
Typical Applications
These finished hex nuts are ideal for:
- Marine and saltwater environments requiring corrosion-resistant fastening
- Food processing and pharmaceutical equipment assembly
- Outdoor industrial installations exposed to moisture and weather
- Chemical processing and laboratory equipment
- General machinery assembly and maintenance
- Structural and architectural metalwork
- Replacement fasteners in existing stainless steel assemblies
Compatibility & Replacements
Compatible With
- 1/2″-13 UNC stainless steel bolts, screws, and studs
- Grade 304 stainless steel fastening systems
- Standard metric and SAE wrench sizes (0.75″ hex)
- Applications requiring DIN 934 or ASME B18.2.2 hex nut specifications
Replaces / Drop-In Replacement For
- Standard 1/2″-13 hex nuts in corrosion-prone environments
- Any galvanized or plated 1/2″-13 hex nut requiring stainless upgrade
- Original equipment hex nuts in marine or coastal installations
Works With
- All standard hex nut sockets and wrenches (0.75″ width across flats)
- 1/2″-13 UNC threaded fasteners and assemblies
- Stainless steel bolt, screw, and stud systems
- Industrial grade fastening and assembly tools














