Value Collection 88547302 Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION 88547302 is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Featuring a 1-8 UNC thread size and a 4.5-inch length under head, this screw is partially threaded and driven with a 3/4-inch hex key. The alloy steel construction provides high tensile strength, and the black oxide finish offers moderate corrosion resistance while reducing light reflection. This fastener is installed by machinists, millwrights, maintenance technicians, and general contractors working with heavy equipment or structural components.

This screw is suited for bolting flanges, machine bases, fixtures, and mechanical assemblies where a flush or recessed fastener head is required. The 1-8 UNC coarse thread pattern offers good resistance to stripping and allows faster assembly in typical shop and field environments. Partial threading is standard for longer cap screws in this class, providing a smooth shank section for shear load applications.

Key Features

• 1-8 UNC coarse thread for reliable engagement in ferrous and non-ferrous tapped holes
• 4.5-inch length under head accommodates deep stack-ups and thick flanges
• 3/4-inch hex drive for use with standard hex keys or socket drivers
• Alloy steel construction provides high tensile and shear strength
• Black oxide finish reduces surface corrosion and minimizes glare in low-visibility environments
• Partial threading with smooth shank section suitable for shear-loaded joints

Compatibility

Designed as a standard 1-8 UNC hex socket cap screw for use in any tapped hole or nut conforming to 1-8 UNC thread specifications per ASME B18.3 standards.

Installation Notes

Installation requires a 3/4-inch hex key or socket driver with adequate torque capacity for a 1-inch diameter alloy steel cap screw. Ensure the mating tapped hole or nut is clean and free of debris before threading. Apply thread lubricant or anti-seize compound as appropriate for the service environment. Follow applicable mechanical codes and equipment manufacturer torque specifications when determining final tightening values.