Value Collection -33628-1 Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION -33628-1 is a hex socket cap screw designed for secure fastening in mechanical assemblies, fabrication work, and maintenance applications. It features a 5/16-18 UNC thread size and measures 3.5 inches in length under the head. The fastener is partially threaded and accepts a 1/4-inch hex drive. Constructed from alloy steel with a black oxide finish, it offers solid tensile strength and basic corrosion resistance suitable for interior and light-duty service environments. This screw meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for applications where dimensional and mechanical property conformance is required.

This hex socket cap screw is used across a broad range of trade and industrial applications including HVAC equipment assembly, mechanical panels, pump mounting, electrical enclosures, and general structural fastening. The socket drive style allows installation in tight spaces where a wrench cannot swing freely. It is commonly installed by HVAC technicians, millwrights, pipefitters, electricians, and general maintenance professionals. Minimum order quantity is 25 pieces per order.

Key Features

• 5/16-18 UNC thread for standard inch-series fastener compatibility
• 3.5-inch length under head for deeper grip in thick material applications
• Partially threaded shank provides stronger clamping force on joined materials
• 1/4-inch hex socket drive allows use in confined spaces with a hex key or bit driver
• Alloy steel construction meets ASTM A574 mechanical property requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection

Compatibility

Designed as a standard 5/16-18 UNC hex socket cap screw conforming to ASME/ANSI B18.3, suitable for use wherever this thread size and drive style are specified in mechanical or structural fastening applications.

Installation Notes

Installation requires a 1/4-inch hex key or socket bit driver. Ensure mating threads are clean and free of debris before installation. Apply appropriate thread lubricant or threadlocker as specified by the equipment manufacturer. Follow applicable torque specifications from the equipment service documentation, as none are provided with this fastener.