Holo-krome 72396 Hex Socket Cap Screw 1-8 Unc Alloy Steel

Product Description

The HOLO-KROME 72396 is a partially threaded hex socket cap screw designed for high-strength fastening applications in industrial and mechanical assemblies. It features a 1-8 UNC thread size, an 8-inch length under head, and accepts a 3/4-inch hex drive. The alloy steel construction with black oxide coating provides corrosion resistance and reduces galling during installation. This fastener meets ASME B18.3 and ASTM A574 standards, making it suitable for demanding structural and machinery applications. Maintenance technicians, millwrights, and industrial mechanics typically install this screw where high tensile strength and a clean, low-profile socket head are required.

The 72396 is appropriate for use in heavy equipment, industrial machinery, structural fixtures, and mechanical assemblies where a partially threaded cap screw is called for. The coarse 1-8 UNC thread pitch is well suited for applications requiring quick engagement and strong clamping force in steel or iron tapped holes. The black oxide finish helps resist light moisture exposure in shop and field environments.

Key Features

• 1-8 UNC coarse thread for strong engagement in steel and iron components
• 8-inch length under head with partial threading for precise clamping control
• 3/4-inch internal hex drive for high-torque installation with standard hex keys or drivers
• Alloy steel construction meets ASTM A574 high-strength fastener specification
• Black oxide coating provides mild corrosion resistance and reduces light surface oxidation
• Conforms to ASME B18.3 socket cap screw dimensional standard

Compatibility

Designed as a standard ASME B18.3 socket cap screw for use in tapped holes requiring a 1-8 UNC thread engagement in industrial, mechanical, and structural assemblies.

Installation Notes

Installation is typically performed by millwrights, maintenance mechanics, or industrial technicians using a 3/4-inch hex key or socket driver. Verify tapped hole thread condition and depth before installation to ensure full thread engagement. Apply appropriate thread lubricant or anti-seize compound per shop practice to prevent galling on alloy steel fasteners. Follow applicable torque specifications from your engineering reference for ASTM A574 alloy steel cap screws at this thread size.