Value Collection 721098PR Flat Socket Cap Screw 8-36

Product Description

The VALUE COLLECTION 721098PR is a flat socket cap screw engineered for precision fastening applications where a flush or countersunk head profile is required. This screw features a hex socket drive accepting a 3/32 inch hex key, is fully threaded along its 3/8 inch overall length, and is manufactured from alloy steel with a black oxide finish for moderate corrosion resistance. Thread size is 8-36 UNF, indicating fine-thread engagement suitable for close-tolerance assemblies. Machinists, tool-and-die technicians, and mechanical assembly professionals typically install these fasteners in production and maintenance settings.

This flat socket cap screw is suited for applications requiring a low-profile or countersunk head that sits flush with or below a mating surface. Common use cases include machine guards, tooling fixtures, precision equipment panels, and mechanical assemblies where head clearance is limited. The 8-36 UNF fine-thread specification provides strong thread engagement in thinner materials and tapped holes where coarse threads would not be practical. This screw is sold individually but carries a minimum order quantity of 100 pieces per order.

Key Features

• Flat head profile allows flush or countersunk installation in mating surfaces
• Hex socket drive (3/32 inch) enables high torque input in confined spaces
• Fully threaded 3/8 inch length for maximum thread engagement across the full fastener length
• Alloy steel construction provides high tensile strength for demanding mechanical assemblies
• Black oxide finish offers mild corrosion resistance and reduces light reflection
• Conforms to ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed for use in standard 8-36 UNF tapped holes in metal or other rigid substrates where a flat countersunk socket cap screw is specified per ASME/ANSI B18.3 dimensional standards.

Installation Notes

Installation is typically performed by machinists or mechanical assembly technicians using a 3/32 inch hex key or Allen driver. Always ensure the mating hole is properly countersunk to the correct angle to seat the flat head fully flush. Do not overtighten, as alloy steel fine-thread fasteners in tapped holes can strip threads if torque is applied beyond the joint's design limits. Confirm thread class and engagement depth in the tapped hole before installation.