Value Collection 336458 Flat Head Torx Machine Screw 100pk

Product Description

The VALUE COLLECTION 336458 is a 5/16-18 x 1-1/4 inch flat head Torx machine screw designed for general-purpose fastening in metal and wood assemblies. Made from Grade 2 steel with a zinc-plated finish, this screw provides reliable corrosion resistance in standard indoor and light-duty applications. The flat head profile sits flush with or below the mating surface, making it well suited for assemblies where a low-profile finish is required. The Torx drive resists cam-out under torque, reducing bit wear and improving installation speed. Length is measured under the head. This package contains 100 screws.

These machine screws are used across a wide range of trades and industries wherever a 5/16-18 UNC thread is specified. Common applications include equipment assembly, panel mounting, enclosure fabrication, and general mechanical fastening in HVAC, electrical, and light structural work. The zinc-plated finish suits interior or sheltered installations where moderate corrosion resistance is acceptable. The Torx drive type is compatible with standard T-27 Torx bits available on most jobsite drivers.

Key Features

• 5/16-18 UNC thread for broad compatibility with standard tapped holes and hex nuts
• Flat head profile allows flush or countersunk installation in mating material
• Torx drive reduces cam-out and extends bit life compared to Phillips or slotted drives
• Grade 2 steel construction meets standard tensile requirements for general fastening
• Zinc-plated finish provides light corrosion protection for indoor and sheltered use
• Pack of 100 screws reduces per-unit cost for volume installation work

Compatibility

Designed as a standard 5/16-18 UNC machine screw suitable for use with pre-tapped holes, threaded inserts, or matching hex nuts in general mechanical and structural assemblies where a flat head Torx fastener is specified.

Installation Notes

Install with a T-27 Torx bit using a power driver or hand driver set to an appropriate torque for Grade 2 steel in the mating material. De-energize and lock out any electrical equipment before fastening screws into enclosures or panels in accordance with NFPA 70 requirements. Do not use an impact driver at full torque on Grade 2 fasteners, as over-torquing can strip threads or shear the screw shank. Inspect mating threads for damage before installation to ensure full thread engagement.