The Ulitmate Metric Screw Thread Resource: Basic Dimensions, Classes, Tolerances, Formulas, Charts, and Explanations

Nov 22, 2024 · This guide explains what defines metric bolts, how they are classified and measured, as well as the dimensions of different types of bolt and common sizes.

Metric fasteners are usually classified as either coarse or fine, referring to their thread pitch, although some sizes are available in an extra fine thread. Coarse metric fasteners, when compared to standard "inch" fasteners (those commonly used in North America), tend to be less coarse—their threads are more closely spaced—for a comparable size.

Apr 10, 2021 · Of ISO 898-1’s ten property classes, let’s focus on just three of them: Property Classes 8.8, 10.9, and 12.9. We’ll discuss what their metric head markings look like, and what some of their tensile strength requirements are. Let’s first …

Dec 22, 2024 · Standard bolts offer a variety of head types, including hex head, socket head, and flat head, similar to metric bolts. The choice of head type depends on the application and the available space. Strength and Grade. The strength of standard bolts is indicated by their grade, which follows a different grading system than metric bolts. Common ...

Aug 18, 2020 · In this article, we’ll go through a complete guide of bolts, which involves bolts definition, types, dimensions explain, and the standard bolt sizes chart in metric and imperial. What are Bolts? Bolts are a kind of externally threaded fastener used with a nut. It will not rotate in the assembly process, but is tightened by turning the nut.

Mar 2, 2025 · There are several types of torque metric bolts, each with unique features and applications: Hex Head Bolts. Description: These bolts feature a hexagonal head and are one of the most common types. Usage: Hex head bolts are versatile and can be used in a wide range of applications, from general fastening to heavy-duty construction.

Jun 22, 2024 · When it comes to metric bolts, there are several different types to choose from. In this section, we’ll cover three main types of metric bolts: machine screws, ISO standard bolts, and IFI standard bolts.

Dec 2, 2024 · The metric SAE size chart is a standardized system used to classify and identify various types of fasteners, including bolts, screws, and nuts. It combines the metric system, which is based on millimeters (mm), with the SAE system, which …

Dec 11, 2024 · Metric bolts come in a wide range of sizes; for a quick overview, here’s a table summarising commonly used metric bolt sizes, their key specifications, and typical applications: These sizes are readily available in most hardware stores and are versatile enough to cover a wide range of tasks.