Value Collection 701177PR Button Socket Cap Screw 3/8-16

Product Description

The VALUE COLLECTION 701177PR is a fully threaded button socket cap screw designed for bolted assemblies where a low-profile head is required. Manufactured from alloy steel with a black oxide coating, this fastener measures 3/8-16 UNC thread by 2-1/4 inches under the head and is driven by a 7/32-inch hex socket. It meets ANSI/ASME B18.3 and ASTM F835 standards and carries a hardness rating of 36-43 HRC. The button head profile keeps the fastener flush-friendly in tight clearance applications. Machinists, millwrights, and maintenance technicians working on machinery, fixtures, and structural assemblies are the primary installers.

This fastener is suited for mechanical assemblies, machine guarding, tooling plates, and equipment enclosures where a rounded, low-profile head is preferred over a standard socket head cap screw. The black oxide finish provides mild corrosion resistance in dry indoor environments and reduces light reflection on exposed hardware. The right-hand, Class 3A thread fit ensures consistent engagement in standard tapped holes. It is sold individually with a minimum order quantity of 10 pieces per order.

Key Features

• Button head profile for low-profile, flush-friendly installations
• Alloy steel construction with 36-43 HRC hardness for high-strength applications
• Black oxide coating for mild corrosion resistance and reduced glare
• 7/32-inch hex socket drive for standard Allen wrench or hex bit installation
• Fully threaded 3/8-16 UNC, Class 3A fit for consistent thread engagement
• Meets ANSI/ASME B18.3 and ASTM F835 standards

Compatibility

Designed as an OEM-style and aftermarket replacement fastener for standard 3/8-16 UNC tapped holes requiring a button socket head profile per ANSI/ASME B18.3.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 7/32-inch hex key or socket bit driver. Ensure the mating tapped hole is clean and free of debris before driving the fastener. Do not exceed the torque capacity appropriate for the Class 3A thread fit and alloy steel grade. Power down or de-energize any equipment before installing or removing fasteners on live machinery.