Value Collection 211125PR Flat Socket Cap Screw 1/4-28

Product Description

The VALUE COLLECTION 211125PR is a flat socket cap screw designed for applications where a flush or countersunk fastener profile is required. Sized at 1/4-28 UNF x 5/8 inches overall length, it features a fully threaded alloy steel shank with an 82-degree flat head and a 5/32-inch hex socket drive. The black oxide finish provides mild corrosion resistance and a low-reflectance appearance. This screw is fully threaded along its entire length, making it well suited for thin-material or through-hole applications. Machinists, maintenance technicians, and assembly professionals install this type of fastener where a raised head would interfere with mating parts or covers.

The 211125PR is used in precision mechanical assemblies, machine guarding, fixture construction, and general industrial maintenance where a countersunk socket drive fastener is specified. The fine 1/4-28 UNF thread pitch is common in applications requiring a stronger thread engagement or finer adjustment than a coarse-thread fastener provides. It is appropriate for use in steel, aluminum, and other metal substrates that accept a standard 82-degree countersink. This fastener is sold individually but carries a minimum order quantity of 100 pieces.

Key Features

• 82-degree flat head seats flush in standard countersunk holes
• 5/32-inch hex socket drive for use with Allen or hex key tools
• 1/4-28 UNF fine thread for improved thread engagement and load distribution
• Fully threaded along the 5/8-inch overall length
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM F835 fastener standards
• Black oxide finish for mild corrosion resistance and reduced light reflection

Compatibility

Designed as a standard replacement or stock fastener for any application specifying a 1/4-28 UNF, 82-degree flat head, hex socket cap screw per ASME/ANSI B18.3 or ASTM F835.

Installation Notes

Installation is performed using a 5/32-inch hex key or Allen driver. Ensure the receiving hole is countersunk to an 82-degree included angle before installation. De-energize or lock out any equipment before fastener service in accordance with applicable safety procedures. Do not exceed the rated mechanical limits of the alloy steel material by applying impact tools not rated for socket cap screws.