Hague Fasteners, one of the UK’s longest established manufacturers of small quantity batches of Made To Order Bolting, are pleased to give you this really useful Fastener Data Thread Chart.

Guide To Screw Thread Sizes

A single Data reference PDF for Fastener Thread Sizes, Pitches and Cross references across UNC, UNF, UN, BSW, BSF, SI & ISO Metric along with BSP, NPT, NPS & ISO Pipe Threads, American Threads and BA, Conduit and Cycle Threads.

With so many different thread forms used around the World it can quite often be quite difficult to establish the exact thread required, This information, however, is absolutely vital, particularly where reverse engineering takes place to replace bolts that may have been in use for decades. This data sheet helps you by listing all metric and inch imperial threads so you can see the number of threads per inch alongside a metric thread pitch so you can now immediately see what the likely thread is.

Naturally this is an everyday tool for the experts at Hague Fasteners, but we think it only fair to share our handy reference guide with the Engineering Sector and associated industries, with our compliments.

Hague Fasteners have been manufacturing every conceivable thread form since there formation in 1971. It is such a rare thing in these modern times to find a Fastener manufacturer that has such history and such extensive expertise. When it comes to Fastener troubleshooting, reverse engineering or plant and vehicle restorations, Hague Fasteners are at the forefront of British Bolt making to ensure the small quantity of Special Fasteners you need are made as an exact replica that will be fit for purpose giving decades of life and reliability.

More Fastener Data Sheets

Hague Fasteners have a further Data resources that you can download, take a look at our Data page to download more Bolting Guides.