Value Collection 701065PR Button Socket Cap Screw 6-40

Product Description

The VALUE COLLECTION 701065PR is a button socket cap screw designed for applications requiring a low-profile head and high clamping strength. Sized at 6-40 x 1/2 inch, it features a 5/64 hex socket drive and is fully threaded along its 1/2-inch length under the head. The fastener is machined from alloy steel and finished with black oxide coating, which provides mild corrosion resistance and reduces light reflection in finished assemblies. It carries a thread fit class of 3A and meets ANSI/ASME B18.3 and ASTM F835 standards. Hardness is rated at 36-43 HRC, making it suitable for moderate-strength fastening tasks. Installation is performed with a 5/64 hex key or ball-end driver.

This screw is commonly used in mechanical assemblies, enclosures, fixtures, and equipment panels where a flush or low-profile head is preferred over a standard socket cap style. The right-hand UNF thread pattern is standard for most inch-series tapped holes. Black oxide finish suits indoor mechanical and light industrial environments. Installers in manufacturing, maintenance, and equipment service frequently specify this screw where clearance above the fastener head is limited.

Key Features

• Button head profile keeps installed height low for tight-clearance assemblies
• 5/64 hex socket drive compatible with standard ball-end and straight hex keys
• Alloy steel construction with 36-43 HRC hardness per ASTM F835
• Black oxide coating reduces surface glare and provides light corrosion resistance
• Fully threaded 6-40 UNF right-hand thread, class 3A fit for precise engagement
• Meets ANSI/ASME B18.3 dimensional standards

Compatibility

Designed as a standard replacement or stocking fastener for any 6-40 UNF tapped hole requiring a button socket cap screw per ANSI/ASME B18.3.

Installation Notes

Install using a 5/64 hex key or ball-end driver; do not use an oversized key, as it will damage the socket. Verify the mating tapped hole is clean, free of debris, and cut to a 6-40 UNF thread form before installation. De-energize or lock out any equipment before accessing fastener locations on live assemblies. Apply thread-locking compound only if specified by the equipment manufacturer, as over-application can make removal difficult in alloy steel threads.