Value Collection 353-2412-01 Button Cap Screw 1/4-28

Product Description

The VALUE COLLECTION 353-2412-01 is a fully threaded button socket cap screw designed for precision fastening applications requiring a low-profile head and high-strength alloy steel construction. The button head style reduces snag points in assemblies while maintaining a secure clamp load. Drive interface is Torx Plus IP27, which delivers improved torque transfer and reduced cam-out compared to standard hex socket drives. Thread specification is 1/4-28 UNRF with a Class 3A fit, providing close tolerances suitable for vibration-prone environments. Black oxide coating offers mild corrosion resistance and a uniform matte appearance. Head height measures 0.0460 inches. Hardness rating is 39-44 HRC. Installed by machinists, maintenance technicians, and mechanical assemblers across a wide range of industrial and OEM applications.

This screw is suited for use in machine assemblies, sheet metal panels, brackets, and enclosures where a flush or low-profile fastener head is required. The 1/4-28 fine thread pitch provides strong thread engagement in thin-wall or tapped-hole applications. Alloy steel construction and a 39-44 HRC hardness rating make this screw appropriate for structural and load-bearing joints in both light industrial and precision mechanical settings. The Torx Plus drive requires an IP27 or TP27 driver bit, which should be confirmed before installation.

Key Features

• Button head profile minimizes protrusion and reduces snagging in close-clearance assemblies
• Torx Plus IP27 drive reduces cam-out and improves torque transfer over standard hex socket
• 1/4-28 UNRF fine thread with Class 3A fit for tight tolerance and vibration resistance
• Alloy steel at 39-44 HRC for high tensile strength and durability
• Black oxide coating provides mild corrosion resistance and a matte finish
• Fully threaded shank along the 3/4-inch length under head
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard 1/4-28 UNRF Class 3A button socket cap screw suitable for tapped holes and threaded inserts conforming to ANSI/ASME B18.3 and ASTM F835 specifications in general industrial and OEM mechanical assemblies.

Installation Notes

Installation should be performed by a qualified machinist or mechanical technician using a calibrated IP27 or TP27 Torx Plus driver bit. Confirm thread engagement depth and tapped-hole condition before driving. Do not exceed the rated hardness class when pairing with mating threads; using this screw in soft or dissimilar materials may cause thread stripping. Refer to applicable ANSI/ASME torque guidelines for 1/4-28 alloy steel fasteners when setting final clamp load.