Value Collection R40664106 Hex Socket Cap Screw 4-40

Product Description

The VALUE COLLECTION R40664106 is a hex socket cap screw designed for secure, high-torque fastening in tight-clearance applications. The screw features a 4-40 UNC thread size and a 3/32 inch internal hex drive, allowing installation with a standard hex key or Allen wrench. Length under head measures 1-1/2 inches. The fastener is manufactured from 18-8 stainless steel, providing corrosion resistance suitable for both indoor and outdoor use. This type of screw is commonly installed by machinists, millwrights, electricians, and general trade professionals working with precision assemblies, enclosures, and light mechanical components.

This screw is used in applications requiring a low-profile, flush-seating cap fastener with fine thread engagement. The 4-40 UNC thread is standard in small mechanical assemblies, electronic enclosures, instrumentation panels, and precision equipment. The 18-8 stainless steel construction makes it a practical choice for environments with moderate moisture exposure or where mild chemical resistance is needed. Sold individually, with a minimum order quantity of 100 pieces per order.

Key Features

• 4-40 UNC thread size for fine-thread engagement in small mechanical assemblies
• 3/32 inch hex socket drive compatible with standard Allen or hex key sets
• 1-1/2 inch length under head for applications requiring deeper thread engagement
• 18-8 stainless steel material grade provides corrosion resistance and durability
• Low-profile socket cap head design suits tight-clearance and flush-mount installations

Compatibility

Designed as a standard 4-40 UNC hex socket cap screw suitable for use in precision mechanical assemblies, electronic enclosures, instrumentation hardware, and light-duty fastening applications that require an 18-8 stainless steel fastener with a 3/32 inch drive.

Installation Notes

Install using a 3/32 inch hex key or Allen wrench; confirm the drive tool is fully seated before applying torque to avoid rounding the socket. Ensure mating threads are clean and free of debris before installation. Minimum order quantity is 100 pieces; verify thread engagement depth in the mating component is adequate for the fastener length selected.