#2-56 Flat Head Cap Screws

#2-56 Flat Head Socket Cap Screws in all available lengths, grades, materials, and finishes. This collection covers every #2-56 option in stock — use the filters to narrow by length, grade, material, and finish.

#2-56 Thread Specifications

• Nominal diameter: 0.086"
• Threads per inch: 56
• Tap drill (75% thread): #50 (0.070")
• Clearance hole (close fit): #43 (0.089")
• Clearance hole (free fit): #41 (0.096")

To thread a #2-56 hole, drill with a #50 (0.070") tap drill for a standard 75% thread. For a clearance hole that the #2-56 screw passes through, use #43 (0.089") for a close fit or #41 (0.096") for a free fit. Pair with a matching #2-56 nut or tapped hole.

Orders before 12 PM ET ship same day.