Value Collection 581651BR Hex Socket Cap Screw 5/8-11

Product Description

The VALUE COLLECTION 581651BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assembly, maintenance, and fabrication work. The screw features a 5/8-11 UNC thread size and a 3/4-inch length under head with full threading from head to tip. It is driven with a 1/2-inch hex key. Constructed from alloy steel with a black oxide finish, this fastener offers solid tensile strength and moderate corrosion resistance for both shop and field use. Licensed trades and industrial maintenance technicians rely on this profile for machine mounting, structural fastening, and equipment assembly where a flush or recessed drive head is required.

This cap screw is suited for general industrial and mechanical maintenance applications. It is commonly used in equipment fabrication, pump and motor mounting, fixture assembly, and structural steel connections. The 5/8-11 UNC coarse thread engages quickly and holds reliably in tapped steel, cast iron, and aluminum bores. The black oxide coating reduces light reflection and provides mild surface protection in dry or mildly humid environments. Sold individually, with a minimum order quantity of 10 units per order.

Key Features

• 5/8-11 UNC coarse thread for fast engagement in tapped holes
• Fully threaded along the 3/4-inch length under head
• 1/2-inch hex drive for use with standard hex keys or Allen drivers
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide finish for mild corrosion resistance and low-glare appearance

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM A574 compliant hex socket cap screw suitable for tapped holes accepting 5/8-11 UNC fasteners in steel, cast iron, and compatible structural materials.

Installation Notes

Installation is typically performed by maintenance technicians, millwrights, or mechanical contractors using a 1/2-inch hex key or Allen driver. De-energize and lock out all equipment before fastener installation or replacement per applicable OSHA lockout/tagout procedures. Apply thread lubricant or anti-seize compound as required by the application to achieve accurate clamp load. Do not exceed the rated tensile strength of the fastener by over-torquing.