Hex Head Cap Screws Grade 8 Steel Plain 1/8 x 5 1/2″ (PT) high-strength fasteners designed for heavy-duty assemblies requiring reliable torque and secure clamping.

These Grade 8 steel hex cap screws feature a plain, uncoated finish, offering strong performance in a wide range of applications where corrosion resistance is not the primary requirement. Ideal for machinery, automotive, and industrial equipment where durability matters.

Key features

• Material: Grade 8 steel for exceptional strength and durability
• Finish: Plain (uncoated) steel
• Size: 1/8 inch diameter, 8 threads per inch (1/8-8 UNC)
• Length: 5 1/2 inches
• Head type: Hex head for easy installation with standard wrenches
• Application: Suitable for high-load assemblies in construction, machinery, and equipment

Benefits:

• High tensile strength provides reliable performance under heavy loads
• Plain steel allows for custom finishes or coatings as needed
• Hex head design enables precise torque and secure seating

How to use:

• Ensure compatibility with 1/8-8 UNC threaded components
• Check load requirements and torque specifications for Grade 8 fasteners
• Use appropriate lubricants if needed and tighten to manufacturer recommendations

Note: This plain steel fastener is not corrosion-resistant. For outdoor or humid environments, consider protective coatings or galvanizing.