Value Collection 701043PR Button Socket Cap Screw 5-40

Product Description

The VALUE COLLECTION 701043PR is a button socket cap screw designed for secure, low-profile fastening in mechanical assemblies. It features a 5-40 UNC thread with a 1-inch length under head, fully threaded shank, and a 5/64-inch hex socket drive. Constructed from alloy steel with a black oxide coating, it delivers hardness in the 36-43 HRC range for reliable performance under load. The black oxide finish provides moderate corrosion resistance and reduces surface reflectivity. Licensed HVAC techs, machinists, and maintenance professionals commonly install these fasteners in precision equipment enclosures and mechanical panel assemblies.

This fastener is suited for applications requiring a low-profile button head with high tensile strength. The 5-40 thread size is common in small mechanical and electrical enclosures, instrument panels, and light-duty structural assemblies. The hex socket drive allows torque application in confined spaces using standard Allen keys or hex drivers. The right-hand thread direction and Class 3A thread fit make it compatible with standard tapped holes per ASME B18.3 specifications. Minimum order quantity is 100 pieces per order.

Key Features

• Button head profile for low-profile, flush-style fastening in tight clearance areas
• 5/64-inch hex socket drive for use with standard Allen or hex key tools
• Alloy steel construction with 36-43 HRC hardness for strength under load
• Black oxide coating for moderate corrosion resistance and low-reflectivity finish
• Fully threaded shank on 5-40 UNC Class 3A right-hand thread
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or standard fastener for any tapped hole accepting a 5-40 UNC Class 3A thread per ANSI/ASME B18.3 specifications.

Installation Notes

Installation is performed using a 5/64-inch hex key or socket driver. Ensure the mating threaded hole is clean, properly tapped to 5-40 UNC Class 3A tolerance, and free of debris before driving. Do not exceed the rated hardness range of the fastener by applying excessive torque, which can cause thread stripping or head shear. Follow applicable machine design standards and equipment manufacturer guidelines when specifying fastener installation torque.