Value Collection MP33642 Hex Socket Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION MP33642 is a hex socket cap screw designed for secure fastening in mechanical assemblies, structural joints, and equipment maintenance applications. The fastener uses a 5/16 inch hex drive and features a 3/8-16 UNC thread with 3 inches of length under the head. Constructed from alloy steel with a black oxide coating, it delivers solid mechanical strength and moderate corrosion resistance in controlled environments. Partial threading allows the shank to bear shear loads while the threaded portion grips the mating material. This type of fastener is installed by HVAC technicians, millwrights, pipefitters, and general maintenance professionals across a range of equipment types.

This screw is suited for use in light industrial and mechanical service applications where a recessed drive is required for flush or countersunk installation. The 3/8-16 UNC coarse thread pattern threads quickly into tapped steel, aluminum, or cast iron bores and provides reliable clamping force in both residential and commercial service environments. The black oxide finish blends with dark mechanical surfaces and reduces light reflection in service panels and enclosures.

Key Features

• 3/8-16 UNC coarse thread for fast engagement in standard tapped holes
• 3 inches length under head with partial threading for shear load capacity
• 5/16 inch hex socket drive for use with standard hex keys and socket drivers
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 fastener standards
• Black oxide coating provides surface protection and low-reflectance finish

Compatibility

Designed as an OEM-style replacement or service fastener for mechanical assemblies requiring a 3/8-16 UNC partially threaded hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574 standards.

Installation Notes

Install using a calibrated hex key or socket driver sized to 5/16 inch. Power down and de-energize all equipment before performing fastener replacement on electrical enclosures or mechanical assemblies. Do not exceed the rated seating torque for the mating material. Follow applicable ASME and facility maintenance codes when used in structural or pressure-bearing assemblies.