Value Collection R57001087 Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION R57001087 is a 1/2-20 UNF hex socket cap screw designed for applications requiring a secure, high-strength threaded fastener. This screw measures 6 inches in length under the head and accepts a 3/8 inch hex drive, making it compatible with standard hex keys and drive tools. Constructed from 18-8 stainless steel with a bright, uncoated finish, it delivers solid corrosion resistance in environments where moisture or chemical exposure is a concern. It is suited for mechanical assembly, structural fastening, and maintenance work across industrial, commercial, and trade applications where a fine-thread cap screw is specified.

This hex socket cap screw is used in situations where a recessed drive head is required for flush or countersunk installation in tight clearance applications. The 1/2-20 UNF fine thread pitch provides increased thread engagement and resistance to vibration loosening compared to coarse-thread equivalents. Typical install scenarios include machinery assembly, equipment mounting, and structural panel fastening in settings where stainless steel hardware is specified for longevity and corrosion resistance.

Key Features

• 1/2-20 UNF fine thread for increased vibration resistance and precise torque control
• 6 inch length under head accommodates deeper thread engagement in thicker materials
• 3/8 inch hex socket drive compatible with standard hex keys and socket drive tools
• 18-8 stainless steel construction provides corrosion and oxidation resistance
• Bright uncoated finish maintains dimensional accuracy and thread fit

Compatibility

Designed as a standard 1/2-20 UNF hex socket cap screw suitable for use in any application specifying that thread size, drive type, and material grade.

Installation Notes

Installation is typically performed by mechanical technicians, millwrights, or maintenance trades using a 3/8 inch hex key or socket drive tool. Always confirm the mating thread size and material compatibility before installation. Fasten to the torque value specified by the equipment manufacturer or applicable assembly standard. Avoid mixing stainless steel fasteners with dissimilar metals in corrosive environments to prevent galvanic corrosion.