Category Sourcing: Our topic overview

Fasteners & Joints: Overview & Selection Guide

Form-fit, force-fit, and material-fit joints compared: which type of fastener or joint suits which application?

Screws to DIN Standards: Types and Norms Overview

DIN 933, 912, 931 and more: which DIN standard belongs to which screw type, and how DIN and ISO designations relate to each other.

Surface Roughness: Ra, Rz and the New ISO 21920

Surface roughness explained: what Ra and Rz mean, which symbols apply on technical drawings, and what changed under the new ISO 21920 standard.

Undercut per DIN 509: Forms, Dimensions, Labeling

Undercut per DIN 509: the 4 forms E, F, G and H compared, how to read the drawing callout on a shaft, and what sets it apart from DIN 76 thread relief.

Aluminum Die Casting: Process, Alloys & Parts

Aluminum die casting explained: the cold chamber process, common alloys, wall thicknesses, and typical parts like housings and automotive components.

Aluminium Alloys: Selection and Properties

Aluminium alloys explained: alloy series, EN AW designation, temper conditions like T6, and properties for choosing the right material in sourcing.