This rivet size calculator takes the figures you already have and applies the relationship behind rivet size calculations for you, giving allowance for closing head, recommended shank diameter and total clamping thickness from rivet head shape, application, other plates’ total thickness, thickest plate thickness and one way.
What Is the Rivet Size Calculator?
The rivet size calculator turns rivet head shape, application, other plates’ total thickness, thickest plate thickness and one way into allowance for closing head, recommended shank diameter and total clamping thickness, so you can order the right amount of material the first time.
Material estimates are where projects go over budget. Getting the quantities right before the delivery arrives is worth more than any discount on the order.
How to Measure for the Rivet Size
Measure everything in the same unit and take the largest dimension you can reasonably use rather than the average. Formwork, ground conditions and cutting waste all push the real figure above the theoretical one.
Where a plan calls for a specific thickness, check it against local building regulations before you order. The calculator reflects the relationship, not the code.
Allowing for Waste and Errors
Order a little more than the calculation suggests. The gap between the theoretical quantity and what actually arrives on site is normally waste, spillage, over-excavation and uneven grading, and all of it comes out of the same budget.
Write the figures down and compare them with what you actually used on site. That is how you build an estimate you can trust for the next job.
A Worked Example
Working through an example, with rivet head shape set to 0, application set to 0, other plates’ total thickness set to 10, the calculator returns size trigger of 0, and dtrigger of 0, and allowance for closing head of 23.8125. Substitute your own figures and the same steps produce the same kind of answer.
Frequently Asked Questions
What do I need to work out allowance for closing head?
Enter rivet head shape, application, other plates’ total thickness, thickest plate thickness and one way. The calculator then works through the relationship and reports allowance for closing head, recommended shank diameter and total clamping thickness.
What does the rivet size actually calculate?
It takes rivet head shape, application, other plates’ total thickness, thickest plate thickness and one way and converts them into allowance for closing head, recommended shank diameter and total clamping thickness using the standard relationship for this problem. Each step is applied in turn, so every output is traceable back to the numbers you typed in.
How should I enter rivet head shape?
Use the value you actually have, in the unit shown next to the field. Enter every value in the same unit system. The calculator assumes the figures you supply are consistent, so it cannot correct a mistake that happens before the calculation starts.
Does anything you type get stored?
No. The whole calculation runs inside your browser, and nothing you enter is uploaded, logged or sent anywhere.
Is the answer exact?
It is as exact as the formula and the inputs allow. The method itself is the standard one for this problem, so the only sources of error are the figures you enter and the precision you ask for.