4-40 X 3/8″ Machine Screws Fillister Head Slotted Drive Steel Black Oxide (10000/Pkg.) Super Sale
Original price was: $336.98.$141.53Current price is: $141.53.
For orders under $150.00, a shipping fee of $12.99 applies.
Engineered for reliable performance, Machine Screws Slotted Fillister Steel Black Oxide 4/40 x 3/8 are precision fasteners ideal for metal enclosures, electronics, and machinery assemblies that require a clean, flush appearance and a secure point of contact. The combination of a slotted drive, fillister head, steel construction, and a black oxide finish delivers dependable strength and a professional finish.
Head: Fillister
Drive: Slotted
Material: Steel
Finish: Black Oxide
Thread Size: 4-40
Length: 3/8 in
Applications include equipment enclosures, control panels, electrical housings, and other precise assemblies where a low-profile, secure fastening is essential. Designed for use with compatible 4-40 tapped holes or nuts, these screws provide strong performance in a compact form factor.
Versatile fastener: 4-40 thread, 3/8″ length for a wide range of projects
Secure seating: Slotted fillister head sits flush and reduces protrusion
Corrosion resistance: Black oxide finish offers mild protection in light-duty environments





