Value Collection -33686-4 Hex Socket Cap Screw 5/8-11 Unc

Product Description

The VALUE COLLECTION -33686-4 is a partially threaded hex socket cap screw designed for high-strength fastening applications. It features a 5/8-11 UNC thread size and a 4-inch length under the head, making it suitable for medium-to-heavy structural and mechanical assemblies. The screw is manufactured from alloy steel with a black oxide finish coating, which provides mild corrosion resistance and reduces light reflection. It is driven with a 1/2-inch hex key. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, confirming it meets recognized dimensional and mechanical property requirements for socket cap screws. Machinists, millwrights, and maintenance technicians are the typical installers.

This cap screw is used across a wide range of industrial, mechanical, and structural applications where a recessed-drive, high-strength fastener is required. Common installation scenarios include machine frames, fixtures, tooling plates, and equipment assemblies where a low-profile head and strong clamp load are priorities. The black oxide finish suits indoor or lightly protected environments. The partial threading allows for full engagement in standard tapped holes at the specified depth.

Key Features

• 5/8-11 UNC thread size for standard coarse-thread tapped holes
• 4-inch length under head for medium-depth fastening applications
• Alloy steel construction meets ASTM A574 mechanical property requirements
• Black oxide coating provides mild corrosion resistance and low-glare appearance
• Partially threaded shank for accurate alignment and shear strength
• 1/2-inch hex drive for use with standard Allen wrenches or hex bits

Compatibility

Designed as a standard ASME/ANSI B18.3 socket cap screw for use in any 5/8-11 UNC tapped hole application requiring a partially threaded alloy steel fastener.

Installation Notes

Installation requires a calibrated 1/2-inch hex key or hex bit driver. Always verify that the mating tapped hole meets the correct thread class and depth before driving. Follow applicable torque specifications for 5/8-11 alloy steel socket cap screws per your engineering or project requirements. Inspect threads for damage before installation to ensure proper seating and clamp load.