Value Collection 701151PR Button Socket Cap Screw 5/16-18x2

Product Description

The VALUE COLLECTION 701151PR is a button socket cap screw designed for fastening applications that require a low-profile head with a hex socket drive. It features a 5/16-18 UNC thread, a 2-inch length under the head, and a 3/16-inch hex socket drive. The screw is manufactured from alloy steel and finished with a black oxide coating for corrosion resistance and reduced light reflection. It meets ANSI/ASME B18.3 and ASTM F835 standards, with a thread fit class of 3A and a hardness rating of 36-43 HRC. This fastener is installed by machinists, millwrights, and maintenance technicians in a wide range of mechanical assemblies.

This button socket cap screw is suited for use in machine components, fixtures, guards, and panels where a smooth, rounded head profile is required to prevent snagging or interference. The right-hand, fully threaded design and UNC thread standard make it compatible with standard tapped holes in steel, aluminum, and other common structural materials. It is commonly used in industrial, commercial, and OEM manufacturing environments.

Key Features

• Button head profile provides low-profile, snag-free installation in tight clearance areas
• 5/16-18 UNC fully threaded shank with right-hand thread direction
• 3/16-inch hex socket drive compatible with standard Allen keys and socket drivers
• Alloy steel construction with 36-43 HRC hardness for high load-bearing capacity
• Black oxide finish for mild corrosion resistance and low-glare surface
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style and aftermarket replacement button socket cap screw for standard 5/16-18 UNC tapped holes in machinery, fixtures, and structural assemblies.

Installation Notes

Installation requires a 3/16-inch hex key or Allen socket driver. Ensure the mating tapped hole conforms to 5/16-18 UNC 2B thread standards before installation. Apply appropriate thread-locking compound or torque per the equipment manufacturer's specifications. Do not exceed the rated hardness limits by substituting this fastener in applications requiring a different grade or thread class.