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The BCP675 Screw Thread Gauge is a compact, durable tool designed for professionals and DIYers alike, offering fast and accurate screw size identification in both Metric and SAE standards. Its robust plastic construction ensures longevity, while its smart design recommends the ideal drill bit or tap size, making it an essential companion for precise fastening tasks.





| ASIN | B07K7W3NQQ |
| Best Sellers Rank | #13,058 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in Thread Gauges |
| Brand | BCP Fasteners |
| Compatible Groove Diameter | 0.75 Inches |
| Customer Reviews | 4.6 out of 5 stars 2,842 Reviews |
| Drive System | External Hex |
| Exterior Finish | Plastic |
| Fastener Size | No. 0 |
| Fastener Type | Machine Screw |
| Finish Types | Uncoated |
| Global Trade Identification Number | 00688938509163 |
| Head Style | Round |
| Head Type | Flat |
| Item Diameter | 1.6 Millimeters |
| Item Weight | 9.07 g |
| Manufacturer | BCP Fasteners |
| Material | Plastic |
| Material Type | Plastic |
| Metal Type | Plastic |
| Model | BCP675 |
| Number of Pieces | 1 |
| Part Number | BCP675 |
| Point Style | Fein |
| Screw Head Style | Round |
| Screw Point Style | Fein |
| Set Screw Thread Type | Metric |
| Size Name | 1.6mm to 16mm |
| Thread Class | coarse fine |
| Thread Coverage | Partially Threaded |
| Thread Size | 0-80 |
| Thread Type | Unc, Unf |
| UPC | 688938509163 |
| Unit Count | 1.0 Count |
B**B
Handy!
Very good!!
B**E
Very accurate thread sizer.
It may be plastic, but it has good threads and accurate screw sizes, it is sturdy and easy to read. Definitely worth the price.
R**Y
Works as intended but I really wished this was not plastic
I was looking tirelessly for specific tiny laptop screw online wasted 4hrs got no where...i cannot believe i could of saved hours guessing screw size and threading type, this really works and takes the guess work out. It would be a really nice tool if its made of some sort of aluminum or stainless steel, only time will tell.
M**P
Very helpful tool
Very helpful tool
J**S
Very nice and well thought out.
It covers about any bolt smaller than a finger. It is plastic, so with lots of use I expe ct wear, but… It is a really well thought out tool, which is a high bar for a plastic sheet full of threaded holes. They went to the effort to print the markings on both side but then when the extra bit to organize the printing differently on the two sides so depending on how you think about sizing there is a side for you. One side has the diameter next to the hole and and the drill sizes in extra columns. The other side has the thread pitch next to the hole and the diameters in extra columns. So one side is your “how do I drill and tap a hole for this bolt I’m holding” and the other side is the “what kind of nut do I buy for this bolt I’m holding”. Well executed product, would buy the designer a drink.
E**R
It's plastic - how long will it be accurate?
I like this item because it helps identify both Inch and Metric screws with one screw checker. The metal ones I have are either/or - Inch/metric. It is unlikely that the threads will wear out on the metal guides but I'm not convinced the plastic one will be as sturdy. I like that both types are on one tool. I'm sure it will work well with new screws - not sure how it will work with worn or rusty screws. I also like that it gives you an idea about which drill bit to use to drill a hole for the screw. I have a couple of other plastic guides which are more robust but I think this one will work OK if I take my time and be careful with it. For $10 it does the same thing the $50 units do.
A**R
Works as advertised.
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.
J**R
Guage
Perfect for determining the size of a bolt. Good value
P**C
Très pratique !
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.
T**N
Well made and covers all threads
Well made, has all internal threads. I have more metric hardware coming from China , so it is good to have
D**J
Great tool
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
G**S
Útil, con calidad.
Útil, con calidad.
C**G
A must if u hav drill bits in a disorganised chaos
Just very helpful
Trustpilot
3 weeks ago
5 days ago