Value Collection -33686-51/2 Hex Socket Cap Screw 5/8-11

Product Description

The VALUE COLLECTION -33686-51/2 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, industrial equipment, and structural connections. The screw features a 5/8-11 UNC thread size with a 5.5-inch length under head and is partially threaded for secure clamping in through-bolt and tapped-hole configurations. Drive engagement is via a 1/2-inch internal hex socket, compatible with standard hex keys and socket drive tools. Constructed from alloy steel with a black oxide finish, the fastener offers solid corrosion resistance and maintains strength under load in demanding service conditions. This part is sold individually with a minimum order quantity of 10 units.

This screw is suited for use in heavy-duty mechanical, industrial, and maintenance applications where a high-strength internally driven cap screw is required. Typical installation scenarios include machine frames, equipment mounting, jigs, fixtures, and structural assemblies requiring controlled torque and a low-profile head. The partial threading allows engagement of a defined grip length, making it appropriate for clamping two or more components with a tapped receiving hole. Machinists, millwrights, maintenance technicians, and industrial mechanics routinely specify this fastener type for general plant and equipment work.

Key Features

• 5/8-11 UNC thread for broad compatibility with standard tapped holes and nuts
• 5.5-inch length under head accommodates deep clamping applications
• 1/2-inch hex socket drive for high-torque installation with standard drive tools
• Partially threaded shank provides defined grip length for accurate clamping
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide finish provides moderate corrosion resistance and reduces glare

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM A574 hex socket cap screw for use in any application requiring a 5/8-11 UNC partially threaded fastener with a 1/2-inch hex drive.

Installation Notes

Installation should be performed by a qualified mechanic or millwright using a calibrated torque wrench and the appropriate 1/2-inch hex key or socket bit. Ensure the receiving tapped hole depth and thread engagement meet the requirements of the applicable design standard before installation. Always de-energize and lock out equipment before fastener removal or replacement on powered assemblies. Do not exceed the rated torque for the fastener grade as defined by ASTM A574 specifications.