#5-40 Flat Head Cap Screws

#5-40 Flat Head Socket Cap Screws in all available lengths, grades, materials, and finishes — every #5-40 option in stock. Use the filters to narrow by length, grade, material, and finish.

#5-40 is one of our most requested flat head socket cap screws sizes. Select your length, then filter by material (steel, 18-8 or 316 stainless) and finish to match your application.

Orders before 12 PM ET ship same day.