7/16"-20 Socket Head Cap Screws

7/16-20 Socket Head Cap Screws in all available lengths, grades, materials, and finishes. This collection covers every 7/16-20 option in stock — use the filters to narrow by length, grade, material, and finish.

7/16-20 Thread Specifications

• Nominal diameter: 0.4375"
• Threads per inch: 20
• Tap drill (75% thread): 25/64" (0.391")
• Clearance hole (close fit): 29/64" (0.453")
• Clearance hole (free fit): 15/32" (0.469")

To thread a 7/16-20 hole, drill with a 25/64" (0.391") tap drill for a standard 75% thread. For a clearance hole that the 7/16-20 screw passes through, use 29/64" (0.453") for a close fit or 15/32" (0.469") for a free fit. Pair with a matching 7/16-20 nut or tapped hole.

Orders before 12 PM ET ship same day.