Value Collection 93117 Button Socket Cap Screw 1/2-13

Product Description

The VALUE COLLECTION 93117 is a button head socket cap screw with a 1/2-13 UNC thread and a 1-1/2 inch length under the head. The button head profile offers a low-profile, rounded top that distributes clamping load over a wider bearing surface compared to a standard hex socket cap screw. Driven by a 5/16 inch hex socket key, this fastener is manufactured from 18-8 stainless steel with a bright, uncoated finish. It meets ANSI/ASME B18.3 and ASTM F837 standards. Machinists, maintenance technicians, and fabricators use this fastener in assemblies where a low-profile head clearance is required.

This screw is suited for light to medium structural and mechanical assemblies in industrial, commercial, and shop-fabrication environments. The 18-8 stainless steel construction provides corrosion resistance appropriate for general indoor and mild outdoor applications. The UNC thread form and Class 3A thread fit make it a standard choice for through-hole and tapped-hole assemblies in metal, plastic, and composite panels where a flush or near-flush fastener head is preferred.

Key Features

• Button head profile provides low-profile clearance with wide bearing surface
• 5/16 inch hex socket drive for standard Allen key or socket bit installation
• 18-8 stainless steel construction for corrosion resistance in general-duty applications
• Bright, uncoated finish for clean appearance and dimensional consistency
• Class 3A thread fit ensures standard tolerance engagement in UNC tapped holes
• Meets ANSI/ASME B18.3 and ASTM F837 fastener standards

Compatibility

Designed as a standard UNC 1/2-13 button socket cap screw suitable for any tapped or through-hole application specifying a 1/2-13 UNC Class 3A thread with ANSI/ASME B18.3 geometry.

Installation Notes

Installation is performed using a 5/16 inch hex key or socket bit driver. Verify that the receiving tapped hole meets UNC 1/2-13 Class 2B or 3B thread specifications before installation. Apply appropriate thread lubricant or anti-seize compound when installing stainless steel fasteners into stainless steel tapped holes to prevent galling. Follow applicable torque specifications from ANSI/ASME B18.3 or your engineering documentation for the specific assembly.