Value Collection 721106PR Flat Socket Cap Screw 8-36

Product Description

The VALUE COLLECTION 721106PR is a flat socket cap screw designed for precision fastening in mechanical assemblies requiring a flush or countersunk finish. Sized at 8-36 x 1 inch with full threading, it features an 82-degree flat head driven by a 3/32-inch hex socket. Made from alloy steel with a black oxide finish, this fastener provides moderate corrosion resistance and reduced light reflection. It conforms to ASME/ANSI B18.3 and ASTM F835 standards, making it a reliable choice for applications where dimensional and material compliance is required. Machinists, maintenance technicians, and mechanical assemblers are the typical installers.

This screw is suited for use in machine frames, fixtures, tooling plates, and mechanical components where a low-profile or flush-mount fastener is needed. The 8-36 UNF thread pitch makes it appropriate for fine-thread applications that demand greater thread engagement and vibration resistance compared to coarse-thread alternatives. The black oxide finish is commonly specified in industrial and mechanical environments where a non-reflective, controlled-appearance fastener is preferred.

Key Features

• 82-degree flat head seats flush in standard countersunk holes for a clean, low-profile installation
• 3/32-inch hex socket drive for use with standard hex key tools
• 8-36 UNF fine thread provides increased thread engagement and vibration resistance
• Fully threaded along the 1-inch overall length for maximum grip across the full shank
• Alloy steel construction for high tensile strength in demanding mechanical applications
• Black oxide finish reduces surface glare and provides light rust inhibition

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM F835 compliant flat socket cap screw for use in countersunk hole patterns sized for an 8-36 UNF thread in inch-system mechanical assemblies.

Installation Notes

Installation should be performed by a qualified machinist or mechanical assembler using a calibrated 3/32-inch hex key or driver. Ensure the receiving hole is properly countersunk to 82 degrees before installation to achieve a fully flush seating surface. Do not over-drive the fastener; seating torque should be determined based on the base material and joint requirements per applicable engineering specifications. Power down or de-energize any equipment before servicing fastened assemblies.