Hex Head Cap Screws 316 Stainless Steel 5/16-18 x 5/8″ (FT) are robust fasteners designed for demanding applications requiring excellent corrosion resistance and reliable performance.

Constructed from high-grade 316 stainless steel, these screws resist rust and corrosion in marine, outdoor, and chemical environments, making them ideal for boat fittings, outdoor equipment, and heavy machinery.

Highlights

• Material: 316 Stainless Steel for superior corrosion resistance
• Head Type: Hex Head for strong torque and easy installation
• Thread Size: 5/16-18 UNC
• Length: 5/8″ (FT indicates full thread)
• Finish: Passivated for enhanced durability
• Drive: Standard hex drive suitable for common wrenches or sockets

These full-thread (FT) hex head cap screws provide maximum thread engagement along the entire length, delivering solid clamping force across assemblies. The 5/16-18 size is a versatile choice for a variety of mechanical, marine, and outdoor projects.

Specifications at a glance

• 316 Stainless Steel
• Head: Hex Head
• Thread: 5/16-18 UNC
• Length: 5/8″ (FT)
• Finish: Passivated

Ideal for assembly tasks that demand reliability, longevity, and resistance to challenging environments. Choose Hex Head Cap Screws 316 Stainless Steel 5/16-18 x 5/8″ (FT) for secure, durable fastening in marine, industrial, and outdoor applications.