Holo-krome 720002622 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The HOLO-KROME 720002622 is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1/2-13 UNC thread size with a partially threaded shank and measures 8.5 inches in length under the head. The 3/8 inch hex drive socket accepts a standard hex key or Allen driver. Constructed from alloy steel with a black oxide finish, this fastener meets ASME B18.3 and ASTM A574 standards, making it appropriate for applications where tensile strength and dimensional consistency are critical. Machinists, millwrights, and maintenance technicians commonly install this type of fastener.

This cap screw suits a wide range of industrial and mechanical assembly applications including machinery frames, equipment mounting, and structural bolted connections that require a recessed drive and a bearing surface under the head. The partial thread configuration is well suited to applications where a grip length or clamp load across unthreaded material is necessary. The black oxide finish provides a mild level of corrosion resistance appropriate for interior or protected environments. This fastener is sold individually.

Key Features

• 1/2-13 UNC thread for compatibility with standard inch-series tapped holes
• 8.5 inches length under head with partial threading for controlled grip length
• 3/8 inch hex socket drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish for corrosion inhibition in dry or protected environments
• Conforms to ASME B18.3 dimensional standard

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw for use in any 1/2-13 UNC tapped hole requiring a partially threaded alloy steel fastener with a 3/8 inch hex drive.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 3/8 inch hex key or torque wrench with a hex bit. Verify that the mating tapped hole is clean, properly sized to 1/2-13 UNC, and free of debris before driving the fastener. Apply thread lubricant or anti-seize as appropriate for the service environment. Do not exceed the designed torque range for the alloy steel grade; refer to the applicable engineering specification or fastener torque chart for the correct value.