Hdw bolt meaning. What is a Bolt? A bolt is a form of threaded fastener with an external male thread requiring a matching pre-formed female thread such as a nut. A few had no letters at all. Related: ANSI Inch Unit Hardware Design Guide Length of Screw Thread Engagement per. COMMON ABBREVIATIONS USED WITH FASTENERS 18-8 - Stainless Steel with 18% Chrome and 8% Nickel 2, 5 or 8 - Strength grade of screw or nut 2A (3A) - Class of Thread Fit for inch screws 2B (3B) - Class of Thread fit for inch nuts 2H - Nut strength level designation (ASTM A194 Grade 2H Heavy Hex Nut) 6g - Class of thread fit for metric screws 6H - of thread fit for metric nuts A325 - Heavy Hex HARDWARE ABBREVIATIONS FOR US, IT’S PERSONAL Product Details HD Screw HDP／HDF／HDH／HDW／HDC／HDP-S／HDF-S／HDH-S／HDW-S／HDC-S For concrete, block and wood / Screw fixing type This page provides a comprehensive list of fastener abbreviations and their meanings for worldwide use. Discover essential screw abbreviations and fastener abbreviations in our comprehensive guide. 8 and above are made of low-carbon alloy steel or medium carbon steel and are generally called high-strength bolts after heat treatment (quenching and tempering), and the rest are generally called ordinary bolts. Feb 25, 2025 · This guide will walk you through what all these bolt head markings mean. We would like to show you a description here but the site won’t allow us. They are all steel, not galvanized, not stainless (as far as I know), and all the threads are the same (18). 4 . pjkjpcz zxsdki tub fxmz emoamd nxpdm emywp jnaryq tmfbklpen jsw