BCP Fasteners Screw Thread Gauge SAE Metric w/Drill and Tap Size Chart

This is the best gauge that I have seen! I went to a hardware store and their gauge was more like a drill gauge. You can actually thread your screw into this gauge to find coarse or fine threads. It is also Metric and Standard. I recommend this! i use mine for RC airplane small size hardware.

very well made and extremely handy.

I bought this for a project that has many small metric screws (old Otari R2R tape deck) many have been replaced with wrong size (SAE where Metric was needed!!)-so this was a Amazon high rated product that was EXTREMELY inexpensive as compared to the more professional stainless steel and/or heavy duty models - some of which cost 5 to 8 times the cost of this. When I saw the plastic in package I thought - "will be returning this". But after using it on several differnt size screws - some very close in size to each-other and one that wouldn't screw in I said ah ha threads aren't cut correctly - when in fact - I discovered previous owner stuck a #6 SAE screw where a M3 should been & this gauge WORKED to discover the problem. NOW THE CONCERNS - although I found of the screws I tested the tapped holes were surprisingly very accurate,, the lettering on my off-white color gauge is very well done and crisp, logically laid out on both sides containing different information for each hole cut - DURABILITY is the obvious concern - I can see trying to force a badly cut or damaged thread screw into this plastic device and ruining the inside threads for that hole, but, I was impressed by the depth of the cut threads - they are cut very well and deep into this plastic. Time will tell if this holds up, lettering stays visible & crisp and with care, the threaded holes (BTW - folks have trouble answering simple question - how thick is this gauge - it is 4.73mm or 3/16" thick (thicker than I thought it would be), it is rather stiff for plastic, glossy finish. I can't see this holding up in a machine shop environment but it also doesn't cost 70 bucks - fine for home/hobby or even small business work so long as you remember it's plastic so no harsh chemicals or extreme environmental conditions, must be stored in a protective case or away from anything that can scratch or damage finish and screws tested must have cleaned threads and not badly chewed up / damage threads and certainly not bent - those conditions will definitely ruin this gauge although those conditions can also damage metal gauges as well. I recommend lubricating screw threads lightly with non-reactive oil/grease (teflan) after cleaning out all grit and grime. I hoping to get a few years out of this - maybe even more... we will see but for $9 bucks - that's a bargain!! Chris

Fast and meets expectations.

It may be plastic, but it has good threads and accurate screw sizes, it is sturdy and easy to read. Definitely worth the price.

Product is as advertised.

This is a very useful and handy tool for your projects. It’s easy to carry and can be important to determine the proper size to use so the. Fit is correct and solid. I highly recommend this

Works fine, just wish it had more thread sizes. It only has two thread pitch counts per standard size and one for each metric. Have to be a little careful that you do t cross thread or force a different thread pitch into the plastic guage. It would be very easy to strip out the threads.

There is only one problem in that I'm not sure whether the screw that I have is metric M6 or 1/4. I wanted wheels for my armchair and I check the screw size of the footies under my chair and ordered some M6 1 inch wheels that supports up to 90 lbs each. I am currently using a 3 wheel dolly for each foot arm of my armchair (5 total) so I also ordered some m6 bolts to secure the dollies (using the footies to secure the dolly at the moment). So either the M6 bolts with dollies OR the M6 1 inch wheels will work on my armchair. This was the only reason that I ordered this Screw Thread Gauge but will keep it for other future projects that needs knowing the screw thread size. I am ecstatic about owning this plastic gauge as it sure beats standing in the Aisle of Home Depot and catching covid. Yes I am weary about it being made of plastic but for the price I cannot complain. Highly recommended for all DIY home users.

J'ai differentes jauges de filetage, mais celle-ci est particulièrement utile par son principe et sans légèreté. En un clin d'œil ont peut vérifier diamètre et pas. Seule contrainte : elle est en plastique, donc il faut en tenir compte et ne pas forcer si la tige filetée n'entre pas de façon fluide.

Este calibre de roscas no debería faltar en ningún Taller

It could do with been a little thicker. However it’s a great product. I deal with both metric and imperial threads it’s a very easy check

Útil, con calidad.