MP-70 · TOLERANCES AND MANUFACTURING

Fastener Hole Clearance

Calculate nominal radial clearance and clearance range from fastener and hole diameter limits.

Preliminary design support. Your inputs and results stay in this browser.

INPUTS

Next decision: Calculate assembly clearance stack

Want to learn more? Tolerance Stacks and Functional Datums

WHAT THIS SCREEN ANSWERS

Fastener clearance must accommodate actual fastener and hole limits as well as assembly and alignment needs. The page compares stated diameter limits and converts their difference to radial clearance. A credible early estimate makes its basis easy to challenge.

Position, coating, stack-up, tool access, head or washer geometry, alignment, and slotting can govern assembly. Confirm applicable clearance-hole guidance, positional tolerance, stack, coating, access, and assembly method. That condition deserves its own explicit check.

Fastener clearance must accommodate actual fastener and hole limits as well as assembly and alignment needs. Position, coating, stack-up, tool access, head or washer geometry, alignment, and slotting can govern assembly. Compare alternatives on the same basis before treating one as preferable.

The page compares stated diameter limits and converts their difference to radial clearance. Confirm applicable clearance-hole guidance, positional tolerance, stack, coating, access, and assembly method. The decision remains specific to this application because fastener clearance must accommodate actual fastener and hole limits as well as assembly and alignment needs. Escalate when the consequence exceeds a preliminary screen.