Value Collection 581742BR Hex Socket Cap Screw 3/4-16 Unf

Product Description

The VALUE COLLECTION 581742BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling fixtures, and industrial equipment. It features a 3/4-16 UNF thread — a fine-pitch unified thread that provides strong clamping force and resistance to vibration loosening. The screw measures 5 inches in length under the head and is partially threaded, which centers load on the unthreaded shank for improved shear resistance. Made from alloy steel with a black oxide finish, it is suited for interior and low-moisture environments where corrosion resistance demands are moderate. A 5/8-inch hex drive socket is required for installation.

This cap screw is commonly used in manufacturing, machining, and maintenance environments. Typical applications include securing machine components, press fixtures, jigs, and structural brackets where a recessed drive head and high tensile strength are required. The partial threading is well suited to through-bolt applications where the shank must bridge a clearance hole without thread engagement in that zone. Installers in industrial maintenance, millwright, and mechanical trades are the primary users of this fastener.

Key Features

• 3/4-16 UNF fine-pitch thread for strong clamping and vibration resistance
• 5 inches of length under the head with partial threading for shear-load applications
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• 5/8-inch hex socket drive for use with standard hex keys or socket drivers

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM A574 compliant hex socket cap screw suitable for 3/4-16 UNF threaded bores in industrial machinery, fixtures, and mechanical assemblies.

Installation Notes

Installation should be performed by a qualified mechanic or millwright using a calibrated torque wrench and a properly sized 5/8-inch hex drive tool. Ensure the threaded bore is clean and free of debris before driving the fastener. Do not over-tighten; consult the applicable engineering specification or assembly drawing for torque requirements specific to your application. Black oxide finish does not provide significant corrosion protection in wet or outdoor environments — apply thread lubricant or anti-seize as dictated by your maintenance standard.