Value Collection 350-2428-61 Socket Cap Head Machine Screw

Product Description

The VALUE COLLECTION 350-2428-61 is a 1/4-28 socket cap head machine screw designed for precision fastening applications requiring a Torx drive. Manufactured from alloy steel with a black oxide finish, this screw measures 1-3/4 inches under the head and is partially threaded. It meets ANSI B18.3, ANSI B18.8.2, ANSI B2.2, and MS16555 standards, making it suitable for demanding mechanical and structural assemblies. The T30 Torx drive resists cam-out under high torque loads, and the black oxide finish provides a degree of corrosion and abrasion resistance. Machinists, maintenance technicians, and industrial assembly professionals commonly specify this fastener.

This screw is used in general industrial, mechanical, and manufacturing assembly applications where a fine-thread 1/4-28 fastener is required. The socket cap head profile seats flush against mating surfaces and is well suited for confined spaces where a hex key or Torx driver must be used in place of an open-end wrench. Partial threading allows for clamping force against a shoulder without thread engagement through the full grip length. This screw is ordered in multiples of 100 and is packaged individually per unit sold.

Key Features

• 1/4-28 fine thread for precise clamping and reduced backlash in metal assemblies
• T30 Torx drive resists cam-out and allows higher torque application than hex drives of comparable size
• Partially threaded shank provides accurate shoulder clamping and controlled grip length
• Alloy steel construction for high tensile and shear strength
• Black oxide finish adds mild corrosion resistance and reduces light reflection in tooling applications
• Meets ANSI B18.3, ANSI B18.8.2, ANSI B2.2, and MS16555 fastener standards

Compatibility

Designed as a standard 1/4-28 socket cap head machine screw suitable for use in any application requiring a fine-thread fastener meeting ANSI B18.3 and MS16555 specifications.

Installation Notes

Installation requires a T30 Torx driver or bit rated for the torque demands of the application. Always verify that the mating tapped hole thread form and class of fit match the 1/4-28 specification before installation. Clean threads and seating surfaces before driving to avoid false torque readings. Minimum order quantity is 100 units per order.