Value Collection R57001010 Hex Socket Cap Screw 4-40 Unc

Product Description

The VALUE COLLECTION R57001010 is a hex socket cap screw designed for fastening applications requiring a compact drive profile and reliable clamping force. Built from 18-8 stainless steel with a bright, uncoated finish, this screw resists corrosion in moderate-exposure environments. It carries a 4-40 UNC thread designation and measures 1-3/8 inches in length under the head. The 3/32-inch hex drive accepts a standard Allen wrench or hex key, making it suitable for confined or torque-sensitive assembly work across mechanical, electrical, and light industrial applications.

This fastener is appropriate for use in low-load, fine-thread assemblies where a flush or recessed drive head is needed. Common applications include panel mounting, instrumentation enclosures, small machinery, and electronic equipment assembly. The 18-8 stainless steel construction makes it a practical choice in environments with incidental moisture exposure. Installers in HVAC controls, electrical panel fabrication, and light mechanical assembly commonly use this screw size for securing small components and brackets.

Key Features

• 4-40 UNC thread for fine-pitch, low-load fastening applications
• 1-3/8 inch length under head for moderate grip depth
• 3/32-inch hex socket drive compatible with standard Allen wrenches and hex keys
• 18-8 stainless steel construction for corrosion resistance in moderate-exposure environments
• Bright, uncoated finish — no coating thickness to account for in tolerance-sensitive fits

Compatibility

Designed as a standard 4-40 UNC hex socket cap screw suitable for any application requiring a 4-40 thread pitch, 1-3/8-inch underhead length, and a 3/32-inch hex drive in stainless steel.

Installation Notes

Install and remove using a 3/32-inch hex key or Allen wrench; do not use an undersized key, as this can round the socket. De-energize any electrical equipment before fastening or removing screws in panel or enclosure assemblies. Apply thread-locking compound only if specified by the equipment manufacturer, as stainless fasteners in stainless tapped holes can be prone to galling — consider anti-seize on fine threads if re-torquing is expected. Follow applicable mechanical codes and equipment manufacturer guidelines for torque requirements.