Value Collection 40267 Hex Socket Cap Screw 5/8-18 Unf

Product Description

The VALUE COLLECTION 40267 is a fully threaded hex socket cap screw designed for high-strength fastening applications. It features a 5/8-18 UNF thread size and measures 1-1/2 inches in length under the head. The 1/2 inch hex drive accepts standard hex keys and torque tools. Constructed from alloy steel and finished with a black oxide coating, this screw delivers solid mechanical strength with modest corrosion resistance. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding industrial, mechanical, and structural assembly work performed by machinists, maintenance technicians, and millwrights.

This screw is a general-purpose socket cap fastener suited for machine assemblies, fixtures, tooling, and equipment frames where a recessed drive is preferred for clearance or torque reasons. The fine 18-thread-per-inch pitch provides precise clamping force and resistance to loosening under vibration, which is an advantage in dynamic machinery environments. Sold individually with a minimum order quantity of 25 pieces, it is appropriate for shop stock replenishment or production builds requiring consistent, standards-compliant hardware.

Key Features

• 5/8-18 UNF fully threaded profile for precise thread engagement and vibration resistance
• 1-1/2 inch length under head accommodates medium-depth clamping applications
• 1/2 inch hex drive compatible with standard hex keys and socket drive tools
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish provides mild corrosion protection and reduces light reflection
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for use in any application requiring a 5/8-18 UNF fully threaded fastener with a 1/2 inch hex drive.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 1/2 inch hex key or socket drive tool. Always ensure mating threads are clean and free of debris before installation. Follow engineering drawings or equipment service manuals for torque requirements, as this product ships without application-specific torque values. Black oxide coating offers minimal corrosion resistance and should not be relied upon as a substitute for plated or stainless hardware in wet or outdoor environments.