3/4"-16 Flange Bolts

3/4-16 Flange Bolts in all available lengths, grades, materials, and finishes. This collection covers every 3/4-16 option in stock — use the filters to narrow by length, grade, material, and finish.

3/4-16 Thread Specifications

• Nominal diameter: 0.75"
• Threads per inch: 16
• Tap drill (75% thread): 11/16" (0.688")
• Clearance hole (close fit): 49/64" (0.766")
• Clearance hole (free fit): 25/32" (0.781")

To thread a 3/4-16 hole, drill with a 11/16" (0.688") tap drill for a standard 75% thread. For a clearance hole that the 3/4-16 screw passes through, use 49/64" (0.766") for a close fit or 25/32" (0.781") for a free fit. Pair with a matching 3/4-16 nut or tapped hole.

Orders before 12 PM ET ship same day.