Value Collection R40694464 Hex Socket Cap Screw 1/4-28 Unf

Product Description

The VALUE COLLECTION R40694464 is a hex socket cap screw designed for precision fastening in applications requiring a fine-thread profile and corrosion resistance. This screw features a 1/4-28 UNF thread size with a 5/8-inch length under the head and is driven with a 3/16-inch hex key. The 18-8 stainless steel construction provides solid resistance to rust and mild chemical exposure. It is suited for use by machinists, maintenance technicians, and trade professionals working on equipment assemblies, panels, or mechanical fixtures where a flush, torque-resistant fastener is required.

This screw is commonly used in light industrial, HVAC equipment assembly, electrical enclosure work, and general mechanical maintenance. The fine 1/4-28 UNF thread pitch provides greater thread engagement and holding strength compared to coarse-thread equivalents, making it appropriate for metal-to-metal fastening in vibration-prone environments. It fits standard hex socket drive tools and is appropriate for both original installation and replacement applications across a broad range of equipment types.

Key Features

• 1/4-28 UNF fine thread for stronger thread engagement in metal fastening
• 3/16-inch hex socket drive compatible with standard hex keys and hex bit drivers
• 18-8 stainless steel construction resists corrosion in moisture-exposed environments
• 5/8-inch length under head suits shallow to medium fastening depth requirements
• Cap head profile allows flush or recessed seating in counterbored holes

Compatibility

Designed as a general-purpose hex socket cap screw for use in equipment assemblies and mechanical fixtures requiring a 1/4-28 UNF fine-thread fastener with a 3/16-inch hex drive.

Installation Notes

Install using a calibrated hex key or hex bit driver sized to 3/16 inch. Ensure mating threads are clean and free of debris before installation to avoid cross-threading, particularly with fine-thread fasteners. Do not overtighten stainless steel fasteners, as galling can occur without proper anti-seize compound on the threads. This fastener should be installed by a qualified technician following applicable mechanical codes and equipment manufacturer guidelines.