Value Collection 701171PR Button Socket Cap Screw 3/8-16

Product Description

The VALUE COLLECTION 701171PR is a button socket cap screw designed for fastening applications that require a low-profile head and high clamping strength. It features a 3/8-16 UNC thread and measures 1.5 inches under the head. Driven by a 7/32 inch hex socket, this fastener is manufactured from alloy steel at material grade 12.9 and finished with a black oxide coating for corrosion resistance. It conforms to ANSI/ASME B18.3 and ASTM F835 standards, making it appropriate for structural and mechanical assemblies where dimensional and hardness specifications must meet recognized industry requirements.

This screw is suited for use in general industrial and mechanical assembly applications where a flush or low-profile head is preferred over a standard hex cap or socket head. The button head style distributes clamping load over a wider bearing surface, making it a practical choice for thin materials or assemblies with limited clearance. It is installed by machinists, millwrights, and maintenance mechanics working on equipment, fixtures, tooling, and structural frames.

Key Features

• Button head profile provides low-clearance fastening with broad bearing surface
• Alloy steel construction at grade 12.9 with hardness rating of 36-43 HRC
• Black oxide finish adds mild corrosion resistance and reduces surface reflectivity
• 7/32 inch hex socket drive for use with standard ball-end or L-key hex wrenches
• Right-hand, class 3A thread fit per ANSI/ASME B18.3 and ASTM F835
• 3/8-16 UNC thread standard for broad compatibility with standard tapped holes

Compatibility

Designed as an OEM-style replacement or stock fastener for applications using 3/8-16 UNC tapped holes requiring a button socket cap screw per ANSI/ASME B18.3 and ASTM F835 specifications.

Installation Notes

Installation is performed by a machinist or maintenance mechanic using a 7/32 inch hex key or socket driver. Ensure the mating tapped hole meets 3/8-16 UNC class 3B thread specifications before installing. De-energize and lock out any equipment before replacing or installing fasteners in live machinery. Do not exceed the rated torque range for grade 12.9 fasteners as specified by the applicable engineering standard for the assembly.