Holo-krome 65026 Button Socket Cap Screw 5/16-24

Product Description

The HOLO-KROME 65026 is a button socket cap screw designed for applications requiring a low-profile head and strong clamping force. It features a 5/16-24 UNF thread and a hex socket drive sized at 3/16 inches, allowing installation and removal with a standard hex key. The alloy steel construction is finished in black oxide, providing mild corrosion resistance and a clean appearance. At 3/8 inches in length under the head, this screw is fully threaded and carries a 3A thread fit class for consistent, precise engagement. Hardness is rated at 38 HRC, meeting ANSI/ASME B18.3 and ASTM F835 standards. Licensed trades and maintenance professionals working with machine assemblies and mechanical subcomponents will find this fastener appropriate for close-tolerance work.

This button socket cap screw is suited for use in mechanical assemblies, equipment panels, and machine components where a low-profile head is required to clear adjacent parts or maintain a flush surface. The fully threaded 5/16-24 UNF right-hand thread engages standard tapped holes in steel, aluminum, and similar materials. It is commonly used in light industrial, maintenance, and OEM replacement applications across HVAC equipment assemblies, electrical enclosures, and general mechanical systems.

Key Features

• 5/16-24 UNF fully threaded, right-hand thread direction with 3A thread fit class
• 3/16 inch hex socket drive compatible with standard hex keys and T-handle drivers
• Low-profile button head — 0.547 inches in diameter and 0.166 inches in height
• Alloy steel construction hardened to 38 HRC for high shear and tensile strength
• Black oxide finish for mild corrosion resistance and reduced light reflection
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard-fit replacement for 5/16-24 UNF button socket cap screws in tapped holes conforming to ANSI/ASME B18.3 specifications across mechanical, industrial, and equipment assembly applications.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician using a 3/16 inch hex key or Allen driver. Ensure the mating tapped hole is clean and free of debris before threading to avoid cross-threading or galling. De-energize and lock out all equipment per applicable safety procedures before removing or replacing fasteners in live assemblies. Do not exceed the rated shear and tensile loads for the fastener grade when determining torque application.