Holo-krome 720003006 Hex Socket Cap Screw 5/8-11 Unc

Product Description

The HOLO-KROME 720003006 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, industrial equipment, and structural connections. It features a 5/8-11 UNC thread with an 11-inch length under head and is partially threaded for proper clamping engagement. The 1/2-inch hex drive accepts standard socket tooling. Manufactured from alloy steel with a black oxide coating, this screw delivers solid corrosion resistance and surface hardness suited to demanding service environments. It meets ASME B18.3 and ASTM A574 standards, confirming dimensional accuracy and mechanical property compliance. Machinists, millwrights, and maintenance technicians are the typical installers.

This screw is well suited to general industrial and manufacturing environments where high-torque fastening is required. The 5/8-11 UNC coarse thread provides reliable grip in steel, iron, and heavy plate assemblies. The partial threading configuration is standard for cap screws of this length, allowing the unthreaded shank to bear shear loads. The black oxide finish reduces light reflection and provides mild corrosion protection in dry or lightly oiled conditions, making it a common choice for machine tool frames, fixtures, and structural steel connections.

Key Features

• 5/8-11 UNC coarse thread for reliable engagement in standard tapped holes
• 11-inch length under head with partial threading for shear-load-bearing shank
• 1/2-inch hex socket drive for use with standard Allen or socket-head tooling
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide coating provides mild corrosion resistance and low-reflectance finish
• Conforms to ASME B18.3 dimensional standard for socket cap screws

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw suitable for use in any tapped hole or application specifying a 5/8-11 UNC partially threaded socket head cap screw in alloy steel.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance mechanics using a 1/2-inch hex key or socket driver. Verify that the mating tapped hole meets 5/8-11 UNC thread specifications and is free of debris before installation. De-energize and lock out all equipment before fastening or removing hardware on live machinery. Do not exceed the torque rating specified in the applicable equipment service documentation or engineering specification.