Value Collection 015291PR Hex Socket Cap Screw 3/8-24 Unf

Product Description

The VALUE COLLECTION 015291PR is a hex socket cap screw engineered for high-strength fastening in mechanical assemblies, tooling fixtures, and equipment manufacturing. It features a 3/8-24 UNF thread — a fine-pitch designation that provides greater tensile strength and improved resistance to loosening under vibration compared to coarse-thread equivalents. The screw measures 1 inch in length under the head and is fully threaded along that length, maximizing thread engagement. Drive interface is a 5/16 inch internal hex, requiring a standard hex key or Allen driver. The alloy steel construction with black oxide coating delivers corrosion resistance and a clean, professional appearance for exposed fastener applications.

This screw suits a wide range of commercial and industrial installation scenarios where fine-thread fasteners are specified — including hydraulic component mounting, precision machinery assembly, automotive and powertrain work, and structural bracketing applications that require controlled torque and secure thread engagement. The fully threaded shank makes it particularly well suited for through-hole and tapped-hole applications where maximum clamping load over the full grip length is required. Machinists, millwrights, and maintenance technicians routinely specify this thread size for close-tolerance assemblies.

Key Features

• 3/8-24 UNF fine-thread specification for high tensile strength and vibration resistance
• Fully threaded shank maximizes thread engagement across the full 1 inch length under head
• 5/16 inch internal hex drive compatible with standard hex keys and Allen drivers
• Alloy steel construction meets ASTM A574 and ASME/ANSI B18.3 standards
• Black oxide finish provides mild corrosion resistance and reduces light reflection in visible assemblies
• Conforms to IFI 124 fastener standard for consistent dimensional tolerances

Compatibility

Designed as a standard-dimension hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574, suitable for tapped holes and through-hole assemblies specifying a 3/8-24 UNF fully threaded socket cap screw.

Installation Notes

Installation should be performed by a qualified mechanic, machinist, or maintenance technician using a correctly sized 5/16 inch hex key or Allen driver. Always verify that the mating tapped hole is clean, undamaged, and specified for 3/8-24 UNF thread before driving the fastener. Do not substitute a coarse-thread (UNC) driver or tap for this fine-thread fastener. Apply thread-locking compound or anti-seize only as specified by the equipment manufacturer or applicable assembly drawings.