Counterbore - Wikipedia
In machining, a counterbore (symbol: ⌴) is a cylindrical flat-bottomed hole that enlarges another coaxial hole, or the tool used to create that feature. A counterbore hole is typically used when a fastener, such as a socket head cap screw or fillister head screw, is required to sit flush with or below the level of a workpiece's surface.
Counterbore | GD&T Basics - gdandtbasics.com
Aug 9, 2022 · A counterbore is a flat-bottomed cylindrical hole that is larger than and coaxial to another cylindrical hole. It is used to provide a flat and recessed mounting surface for mating parts. The hardware most commonly used with a counterbore is a socket head cap screw.
Counterbore vs Countersink. Differences & Strength - Fine …
Mar 21, 2021 · A counterbore hole is deeper and has a square-like shape where the shoulder of the screw head can seat. It also allows for the addition of washers to be used. A countersink will create a conical-shaped hole that is identical to the angled shape found on the underside of a screw which has a flat top.
Counterbores - All About - Machinist Guides
Feb 16, 2021 · A counterbore is a circular hole with a flat bottom which coincides with another hole. The counterbored section allows a bolt head or other fastener to be recessed. What does a counterbore look like?
Types of Holes - The Complete Guide - The Engineer's Bible
Oct 7, 2022 · Counterbore What Is a Counterbored Hole? A counterbore is a simple hole with a wider hole above it. The 3D model below shows a counterbore with the same counterbore next to it cut in half:
Counterbore: Types, Applications and Steps to Make One - okdor
Dec 30, 2023 · A counterbore is a cylindrical flat-bottomed hole that enlarges the top portion of an existing hole, typically to allow the head of a bolt or screw to sit flush with or below the surface of the surrounding material.
Counterbore Hole Size for Socket Head (ANSI Metric)
Oct 31, 2022 · Unsure on what size counterbore hole to use for your ANSI Metric socket cap head fasteners? Then look no further! This short post will give you the exact dimensions you need for your screws and bolts.
Countersink vs. Counterbore: What Are the Differences?
Jun 7, 2023 · Oftentimes, terms like countersink and counterbore – and even spotface – are used interchangeably. After all, they are all meant to make screws and bolt “fit perfectly.” However, each of the three is, upon closer look, considerably different.
Counterbore Holes: A Brief Guide - Fictiv
What is a Counterbore? Definition. Left: Cross-section counterbore cut; Right: Cross-section countersink cut. A counterbore is a cylindrical hole, with a flat bottom that is larger than and coaxial to another cylindrical hole below it.
What Is A Counterbore And Where Is It Used? - Apexinds.com
By using a counterbore, the manufacturer has an opportunity for hiding the fastener completely during the joining process. The fastener can be made to lie either flush with or below the surface of the workpiece such that the head does not hinder the design.