Value Collection 011371P Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 011371P is a partially threaded hex socket cap screw designed for high-strength fastening applications. Featuring a 1/2-13 UNC thread and a 3-inch length under head, this screw is driven with a 3/8-inch hex key. Constructed from alloy steel with a black oxide finish, it meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding mechanical assemblies where tensile strength and corrosion resistance are priorities. Machinists, millwrights, and general maintenance technicians commonly use this fastener in structural and equipment assembly work.

This screw is well suited for use in industrial machinery, equipment frames, fixtures, and structural assemblies requiring a strong, flush or recessed cap screw. The partial threading allows for controlled clamping force and is appropriate for through-bolted or tapped-hole applications. It is a standard choice wherever ASME/ANSI B18.3-compliant socket cap screws are specified on engineering drawings or maintenance documents.

Key Features

• 1/2-13 UNC thread for broad compatibility with standard tapped holes
• 3-inch length under head with partial threading for controlled clamping
• 3/8-inch hex drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 for high tensile strength
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Complies with ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or standard-specification fastener for industrial, mechanical, and structural assemblies requiring 1/2-13 UNC partially threaded socket cap screws conforming to ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 3/8-inch hex key or Allen bit driver. Always ensure the tapped hole thread specification matches 1/2-13 UNC before installation. Power down and de-energize any equipment before replacing or installing fasteners in mechanical assemblies. Do not overtighten; follow the torque specifications provided in the applicable engineering drawing or equipment service manual.