Value Collection 011159P Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 011159P is a hex socket cap screw designed for applications requiring a precise, low-profile fastener driven with an internal hex key. Threaded to 1/4-20 UNC and measuring 1-3/4 inches under the head, this fastener is partially threaded and accepts a 3/16 inch hex drive. Constructed from alloy steel with a black oxide finish, it delivers solid tensile strength and moderate corrosion resistance in indoor and controlled-environment applications. Meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for structural and mechanical assemblies where dimensional and strength compliance is required.

This screw is used across a wide range of mechanical, industrial, and trade applications including equipment assembly, machinery mounting, and structural fastening tasks. The partial threading provides a smooth shank section that resists shear stress at joint interfaces. The black oxide coating reduces galling and provides light surface protection. Machinists, maintenance technicians, millwrights, and HVAC or plumbing equipment installers commonly use cap screws of this specification when assembling panels, brackets, and mechanical subassemblies.

Key Features

• 1/4-20 UNC thread size for broad tool and hardware compatibility
• 1-3/4 inch length under head with partial threading for shear-resistant installations
• 3/16 inch hex socket drive for secure torque transfer with a standard hex key or Allen driver
• Alloy steel construction meets ASTM A574 strength requirements
• Black oxide finish provides light corrosion resistance and reduces galling
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style and general-use replacement or new-install fastener for any mechanical assembly specifying a 1/4-20 UNC hex socket cap screw with a 1-3/4 inch length under head per ASME/ANSI B18.3.

Installation Notes

Installation requires a 3/16 inch hex key or Allen-style driver. Always ensure the mating threads are clean and free of debris before driving. Power down and de-energize any equipment before fastener service on electrical or mechanical assemblies. Do not exceed the fastener's rated torque range for 1/4-20 alloy steel cap screws as specified by the relevant mechanical or structural code for the application.