Value Collection -33627-1 Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION -33627-1 is a partially threaded hex socket cap screw designed for secure fastening in mechanical, industrial, and structural assemblies. Sized at 5/16-18 UNC with a 3-inch length under the head, it is driven by a 1/4-inch hex key. The screw is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for applications requiring a defined mechanical strength grade. Maintenance technicians, machinists, and field service professionals commonly use this fastener type across a wide range of equipment and fixture installations.

This screw is suited for use in general industrial machinery, equipment frames, fixtures, and assemblies where a recessed-drive cap screw with controlled thread engagement is required. The partial thread configuration provides a smooth shank section that can improve alignment and load distribution in through-hole and clearance applications. The black oxide finish makes it a common choice in settings where a low-profile, dark appearance is preferred alongside functional clamping performance.

Key Features

• Thread size: 5/16-18 UNC for standard inch-series fastener compatibility
• 3-inch length under head with partial threading for shank clearance applications
• 1/4-inch hex drive for use with standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion resistance and low-glare appearance
• Conforms to ASME/ANSI B18.3 socket cap screw dimensional standards

Compatibility

Designed as a standard 5/16-18 UNC hex socket cap screw for use in any application requiring an ASME/ANSI B18.3 or ASTM A574 compliant partially threaded socket head fastener.

Installation Notes

Install using a 1/4-inch hex key or hex bit driver. Ensure mating threads are clean and free of debris before installation. Do not exceed the rated torque range for the thread size and material grade as specified by applicable engineering or maintenance documentation. Follow all relevant fastener installation guidelines under ASME or applicable machinery safety codes.