Bulk #4-40 × ⅜″ Phillips Flat-Head Thread-Cutting Screws — Type F, Black-Oxide Steel 440396 Monster Bolts supplies professional-grade fasteners

Monster Bolts supplies professional-grade fasteners in bulk—stocked in the U

High Strength and Durability: Thru-hardened medium carbon steel offers superior mechanical properties for heavy-duty use

The cup point design enhances surface contact

General Assembly: Suitable for tasks demanding moderate corrosion resistance and precise fastening

Bulk #4-40 × ⅜″ Phillips Flat-Head Thread-Cutting Screws — Type F, Black-Oxide Steel 440396 Monster Bolts supplies professional-grade fastenersMonster Overview: Sized for electronics chassis, miniature sheet metal housings and dense hardwood trim, these #4 40 Phillips Flat Head Thread Cutting Screws seat flush while tapping clean threads in a pre drilled or punched hole. Heat treated carbon steel blanks wear a tough black oxide conversion coat, then a factory dry wax film for ultra low, repeatable drive torque. Monster Features: Flush Seating: 82 flat countersunk head leaves surfaces smooth