Value Collection 353-0416-01 Button Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION 353-0416-01 is a button socket cap screw designed for fastening applications that require a low-profile head and high-strength alloy steel construction. This fully threaded fastener measures 1/4-20 thread size with a 1-inch length under the head and features a Torx Plus IP27 drive, which provides superior torque transfer and reduces driver cam-out compared to standard hex socket drives. The black oxide finish offers mild corrosion resistance and reduces light reflection in finished assemblies. Hardness is rated at 39 to 44 HRC, consistent with ASTM F835 and ANSI/ASME B18.3 standards. Installation is performed by machinists, millwrights, and general mechanical technicians.

This screw is suited for use in precision mechanical assemblies, machine guarding, fixtures, and equipment panels where a flush, low-profile button head is required. The 1/4-20 UNRC thread class 3A fit provides a controlled tolerance for standard tapped holes. Right-hand thread direction is standard. The black oxide finish makes it a common choice in applications where aesthetics and mild corrosion protection are both considerations, such as tooling plates, brackets, and light structural assemblies.

Key Features

• Button head profile provides low clearance and a finished appearance in mechanical assemblies
• Torx Plus IP27 drive delivers high torque transfer and reduces bit slippage during installation
• Alloy steel construction with 39 to 44 HRC hardness rating per ASTM F835
• Black oxide coating offers mild corrosion resistance and a non-reflective surface
• UNRC thread class 3A fit for controlled tolerance in standard tapped holes
• Fully threaded along the 1-inch length under head

Compatibility

Designed as an OEM-style replacement or standard-use fastener for any application requiring a 1/4-20 button socket cap screw conforming to ANSI/ASME B18.3 and ASTM F835 standards.

Installation Notes

Installation requires a Torx Plus IP27 driver bit. Power down and de-energize any equipment before fastener service on mechanical assemblies connected to electrical systems. Follow applicable torque guidelines from the equipment manufacturer or relevant ASME standards for the joint material and thread size. Do not use standard Torx bits in place of Torx Plus bits, as this may damage the drive recess.