Holo-krome 73048 Hex Socket Cap Screw 10-32 Unf Alloy Steel

Product Description

The HOLO-KROME 73048 is a hex socket cap screw designed for precision fastening in mechanical assemblies, machine components, and tooling fixtures. It features a 10-32 UNF thread size with a 1-1/2 inch length under head and is driven with a 5/32 inch hex key. The fastener is partially threaded, manufactured from alloy steel, and finished with a black oxide coating that provides mild corrosion resistance and a consistent matte appearance. Compliance with ASME B18.3 and ASTM A574 confirms dimensional accuracy and minimum tensile strength requirements. Machinists, maintenance technicians, and mechanical contractors install this type of fastener in high-torque applications where a flush or recessed head profile is required.

This screw is suited for close-tolerance bolted joints in light industrial and commercial mechanical applications. The fine 10-32 UNF thread pitch provides superior clamping force in thin materials and delivers better vibration resistance compared to coarse thread equivalents. Typical installation scenarios include machine tool assemblies, jigs and fixtures, pneumatic component mounting, and general fabrication work requiring a compact, high-strength fastener. This SKU is sold individually but carries a minimum order quantity of 100 pieces per order.

Key Features

• 10-32 UNF fine thread for improved clamping force and vibration resistance
• 1-1/2 inch length under head with partial threading for bearing-surface engagement
• 5/32 inch hex socket drive for standard Allen key or hex bit installation
• Alloy steel construction meets ASTM A574 minimum tensile strength requirements
• Black oxide finish provides mild corrosion resistance and reduces surface glare
• Conforms to ASME B18.3 dimensional standards for consistent fitment

Compatibility

Designed as an OEM-style replacement or standard-stock hex socket cap screw for mechanical assemblies requiring a 10-32 UNF partially threaded fastener with a 5/32 inch hex drive, per ASME B18.3 specifications.

Installation Notes

Installation is performed by machinists or mechanical technicians using a calibrated torque wrench with a 5/32 inch hex bit or ball-end Allen key. Always de-energize and lock out equipment before fastener replacement in live assemblies. Verify thread engagement depth in the mating component meets minimum requirements per ASME standards before final torque. Do not use an impact driver on fine-thread socket cap screws, as this risks thread galling or stripping in aluminum or soft-metal tapped holes.