Hex Head Cap Screws 316 Stainless Steel 5/8-11 UNC x 4-1/2″ (PT) deliver superb corrosion resistance and dependable strength for demanding environments. Made from 316 stainless steel, these fasteners resist rust and pitting in moisture, salt spray, and chemical exposure, making them a trusted choice for marine, outdoor, and industrial applications.

Designed for compatibility with standard hex drivers, these head screws provide secure, high-torque performance in a variety of assemblies. The 5/8-11 UNC thread size and 4-1/2″ length offer substantial grip and reach for robust connections while maintaining reliability.

Specifications

• Material: 316 Stainless Steel
• Size: 5/8-11 UNC
• Length: 4-1/2″
• Head Type: Hex Head Cap Screw
• Designation: PT

Applications

Ideal for marine hardware, outdoor equipment, and other environments where corrosion resistance is essential. Use in equipment assembly, structural connections, and repair projects that demand durable stainless fasteners.

Care & Maintenance

• Clean and dry the fasteners after exposure to moisture or chemicals.
• Use anti-seize compounds when assembling with dissimilar metals to prevent galling and ease disassembly.
• Store in a dry environment to preserve corrosion resistance.