Diameter of Hole Inside Bolt Calculator

✖Nominal Bolt Diameter is the diameter equal to the external diameter of the threads or the overall diameter of the part of the bolt.ⓘ Nominal Bolt Diameter [d]			+10% -10%
✖Core Diameter of Bolt is defined as the smallest diameter of the thread of the bolt. The term “minor diameter” replaces the term “core diameter” as applied to the thread.ⓘ Core Diameter of Bolt [d_c]			+10% -10%

✖The Diameter of Hole inside Bolt is defined as the internal diameter of the hole that is made inside a bolt along its axis for weight reduction.ⓘ Diameter of Hole Inside Bolt [d₁]

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Formula

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Diameter of Hole Inside Bolt

Formula

`"d"_{"1"} = sqrt("d"^2-"d"_{"c"}^2)`

Example

`"9mm"=sqrt(("15mm")^2-("12mm")^2)`

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Diameter of Hole Inside Bolt Solution

STEP 0: Pre-Calculation Summary

Formula Used

Diameter of Hole inside Bolt = sqrt(Nominal Bolt Diameter^2-Core Diameter of Bolt^2)
d₁ = sqrt(d^2-d_c^2)
This formula uses 1 Functions, 3 Variables

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Diameter of Hole inside Bolt - (Measured in Meter) - The Diameter of Hole inside Bolt is defined as the internal diameter of the hole that is made inside a bolt along its axis for weight reduction.
Nominal Bolt Diameter - (Measured in Meter) - Nominal Bolt Diameter is the diameter equal to the external diameter of the threads or the overall diameter of the part of the bolt.
Core Diameter of Bolt - (Measured in Meter) - Core Diameter of Bolt is defined as the smallest diameter of the thread of the bolt. The term “minor diameter” replaces the term “core diameter” as applied to the thread.

STEP 1: Convert Input(s) to Base Unit

Nominal Bolt Diameter: 15 Millimeter --> 0.015 Meter (Check conversion here)
Core Diameter of Bolt: 12 Millimeter --> 0.012 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

d₁ = sqrt(d^2-d_c^2) --> sqrt(0.015^2-0.012^2)

Evaluating ... ...

d₁ = 0.009

STEP 3: Convert Result to Output's Unit

0.009 Meter -->9 Millimeter (Check conversion here)

FINAL ANSWER

9 Millimeter <-- Diameter of Hole inside Bolt

(Calculation completed in 00.004 seconds)

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Home » Physics » Design of Machine Elements » Design of Coupling » Threaded Bolted Joints » Nut Dimensions » Diameter of Hole Inside Bolt

Credits

Created by Kethavath Srinath

Osmania University (OU), Hyderabad

Kethavath Srinath has created this Calculator and 1000+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< 5 Nut Dimensions Calculators

Height of Nut given Strength of Bolt in Shear

Go Height of Nut = Tensile Force in Bolt*Factor of Safety of Bolted Joint/(pi*Core Diameter of Bolt*Shear Yield Strength of Bolt)

Diameter of Hole Inside Bolt

Go Diameter of Hole inside Bolt = sqrt(Nominal Bolt Diameter^2-Core Diameter of Bolt^2)

Height of Nut given Shear Area of Nut

Go Height of Nut = Shear Area of Nut/(pi*Core Diameter of Bolt)

Shear Area of Nut

Go Shear Area of Nut = pi*Core Diameter of Bolt*Height of Nut

Height of Standard Nut

Go Height of Nut = 0.8*Nominal Bolt Diameter

Diameter of Hole Inside Bolt Formula

Diameter of Hole inside Bolt = sqrt(Nominal Bolt Diameter^2-Core Diameter of Bolt^2)
d₁ = sqrt(d^2-d_c^2)

Uses of a Bolt

A bolt is a type of fastener, usually made from metal, that commonly comprises a head at one end, a chamfer at the other, and a shaft characterized by an external helical ridge known as a 'thread'. Bolts are typically used to hold materials or objects together, or to position objects

How to Calculate Diameter of Hole Inside Bolt?

Diameter of Hole Inside Bolt calculator uses Diameter of Hole inside Bolt = sqrt(Nominal Bolt Diameter^2-Core Diameter of Bolt^2) to calculate the Diameter of Hole inside Bolt, Diameter of Hole inside Bolt formula is defined as the diameter of the hole drilled in the bolt to reduce the cross-sectional area of shank. Diameter of Hole inside Bolt is denoted by d₁ symbol.

How to calculate Diameter of Hole Inside Bolt using this online calculator? To use this online calculator for Diameter of Hole Inside Bolt, enter Nominal Bolt Diameter (d) & Core Diameter of Bolt (d_c) and hit the calculate button. Here is how the Diameter of Hole Inside Bolt calculation can be explained with given input values -> 9000 = sqrt(0.015^2-0.012^2).

FAQ

What is Diameter of Hole Inside Bolt?

Diameter of Hole inside Bolt formula is defined as the diameter of the hole drilled in the bolt to reduce the cross-sectional area of shank and is represented as d₁ = sqrt(d^2-d_c^2) or Diameter of Hole inside Bolt = sqrt(Nominal Bolt Diameter^2-Core Diameter of Bolt^2). Nominal Bolt Diameter is the diameter equal to the external diameter of the threads or the overall diameter of the part of the bolt & Core Diameter of Bolt is defined as the smallest diameter of the thread of the bolt. The term “minor diameter” replaces the term “core diameter” as applied to the thread.

How to calculate Diameter of Hole Inside Bolt?

Diameter of Hole inside Bolt formula is defined as the diameter of the hole drilled in the bolt to reduce the cross-sectional area of shank is calculated using Diameter of Hole inside Bolt = sqrt(Nominal Bolt Diameter^2-Core Diameter of Bolt^2). To calculate Diameter of Hole Inside Bolt, you need Nominal Bolt Diameter (d) & Core Diameter of Bolt (d_c). With our tool, you need to enter the respective value for Nominal Bolt Diameter & Core Diameter of Bolt and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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