Bulk 4-40 Phillips Flat Undercut Thread Cutting Screw Type F, 18-8 Stainless Steel, Full Thread Length:5000 Qty - 4-40 x 5/16" Each heat-treated carbon-steel screw features

Each heat-treated carbon-steel screw features a deep black-oxide conversion coating for low-glare corrosion resistance

Type F Cutting Point — #4-40 UNF thread with fluted slot taps clean threads in 0

these string lock screws are both ultra-strong and surprisingly lightweight

Hex-Socket Drive: Internal Allen (4 mm A/F) keeps hardware snag-free and tamper-resistant

Bulk 4-40 Phillips Flat Undercut Thread Cutting Screw Type F, 18-8 Stainless Steel, Full Thread Length:5000 Qty - 4-40 x 5/16" Each heat-treated carbon-steel screw featuresMonster Overview: Fix your project right the first time with 4 40 Phillips Flat Undercut Thread Cutting Screws Type F, 18 8 Stainless Steel from Monster Bolts. These precision engineered micro fasteners are perfect for electronics, robotics, and miniature enclosures where both flush mounting and reliable thread engagement are essential. The undercut head style allows for full thread length, even in tight countersinks. Crafted from corrosion resistant