Holo-krome 73062 Hex Socket Cap Screw 1/4-28 Unf Alloy Steel

Product Description

The HOLO-KROME 73062 is a hex socket cap screw designed for applications requiring a secure, flush or recessed fastening solution. Sized at 1/4-28 UNF with a 7/8-inch length under head and fully threaded shank, this fastener is manufactured from alloy steel and finished with a black oxide coating for corrosion resistance. The 3/16-inch hex drive socket accepts a standard hex key for installation. It meets ASME B18.3 and ASTM A574 standards, making it suitable for structural and mechanical fastening tasks across trade and industrial settings.

This screw is used in mechanical assemblies, HVAC equipment mounting, electrical enclosures, and general trade applications where a high-strength socket head cap screw is specified. The 1/4-28 UNF fine thread provides strong clamping force and resistance to loosening under vibration. The fully threaded design ensures full thread engagement throughout the fastener length, which is particularly useful in thin-stock or blind-hole applications. Licensed trades including HVAC technicians, electricians, and plumbers commonly use socket cap screws for equipment panel and bracket fastening.

Key Features

• 1/4-28 UNF fine thread for strong clamping and vibration resistance
• 7/8-inch length under head with fully threaded shank
• 3/16-inch hex socket drive for standard hex key installation
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish provides moderate corrosion resistance
• Meets ASME B18.3 dimensional standard

Compatibility

Designed as an OEM-style replacement or service fastener for mechanical assemblies requiring a 1/4-28 UNF hex socket cap screw per ASME B18.3 specification.

Installation Notes

Installation requires a 3/16-inch hex key or hex bit driver. Ensure the mating threaded hole is clean and free of debris before driving. Do not exceed the rated torque range for 1/4-28 alloy steel fasteners as specified in the relevant equipment service documentation. Follow applicable codes and manufacturer guidelines for fastener torque and thread engagement requirements.