Value Collection -33708-2 Hex Socket Cap Screw 7/8-9 Unc

Product Description

The VALUE COLLECTION -33708-2 is a partially threaded hex socket cap screw designed for high-strength fastening applications in industrial and mechanical assemblies. It features a 7/8-9 UNC thread size and measures 3.25 inches in length under the head. The screw is driven with a 3/4-inch hex key and is manufactured from alloy steel with a black oxide finish, providing corrosion resistance and a low-reflectance appearance. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding structural and mechanical applications. Installation is typically performed by machinists, maintenance technicians, or mechanical contractors.

This hex socket cap screw is used in a wide range of industrial, OEM, and maintenance applications where high tensile strength and a flush or recessed fastener profile are required. Partial threading allows for precise clamping force in bolted joints. It is commonly used in machine frames, fixture assemblies, tooling plates, and equipment enclosures where a standard hex socket drive is accessible.

Key Features

• 7/8-9 UNC thread size for high load-bearing capacity
• 3.25-inch length under head with partial threading for precise clamping
• 3/4-inch hex socket drive for standard Allen key or hex bit installation
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide coating provides mild corrosion resistance and reduces surface glare
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw suitable for use in any application requiring a 7/8-9 UNC partially threaded fastener with a 3/4-inch hex drive.

Installation Notes

Installation requires a 3/4-inch hex key or appropriately sized hex bit driver. Ensure mating threads are clean and free of debris before driving. Consult applicable torque specifications from engineering references or the equipment manufacturer for the specific joint material and fastener grade. Always de-energize and lock out equipment before performing fastener service on live machinery.