Screw Thread Gauge | Metric and SAE | Recommends Drill Bit & Tap Size (BCP675)

Screw Thread Gauge | Metric and SAE | Recommends Drill Bit & Tap Size (BCP675)

Q: Do the holes have threads so you can screw in a bolt?

Yes. The gauge is a thin piece of plastic and each hole is threaded. There is, of course, a limited number of threads because the plastic is thin. I believe it should be used gently to avoid damaging plastic threads. I believe it will be useful for identifying whether a screw has one standard thread (such as 1/4-NC20) or another standard thread (such as 1/4-NF28), but I don't think it can be used to finely test accuracy of threads cut on a lathe. I have not had an occasion to use it yet.

Q: what is the thickness of this gauge?

My micrometer says it's about a quarter inch. The only caveat is it is a polymer gauge, good news is that means it's durable and can flex around truly messed up screws and bolts; the bad news is it's not super precise because it's not stainless or Ti. For example it might be hard to discern a 24 vs. 28 pitch thread, but in my experience in the machine shop it determines the right threading well especially when you are trying to match a screw that's broken, old or damaged.

Q: will this guage work for very small computer screws ?

Yes! The guage goes down to M1.4 which is much smaller than any fastener that your going to find in any computer. The guage also has inch sizes down to #0 (.060 inch). Mike

Q: Why do they show two different kinds of cards in the picture? One says "pitch" at the top right, and the other says "drill". Which one do we get?

The pitch is for metric screws.

Product ID: 405913277

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Details

Material
Plastic
Head Style
Round
Exterior Finish
Plastic
Thread Size
0-80
Point Style
Fein

📏Dual Metric & SAE sizing

🔧Recommends drill & tap sizes

🛡️Durable thick hard plastic

Frequently Bought Together

Screw Thread Gauge | Metric and SAE | Recommends Drill Bit & Tap Size (BCP675)

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Description

🔩 Nail every measurement with precision and style!

BUILT TO LAST - Constructed from thick, hard plastic that resists oil, grease, and wear for long-term reliability.
COMPACT PORTABLE - Lightweight design fits effortlessly in your shirt pocket or tool chest for on-the-go convenience.
PRO RECOMMENDED TOOL - Essential for mechanics and hobbyists alike, ensuring you never guess the right drill or tap size again.
UNIVERSAL COMPATIBILITY - Supports both Metric (1.6mm-16mm) and SAE (#0 to 3/4") threads for versatile use.
PRECISION AT YOUR FINGERTIPS - Quickly identify screw sizes with unmatched accuracy to keep your projects moving.

The BCP675 Screw Thread Gauge is a professional-grade, dual-standard tool designed to quickly and accurately measure screw sizes in both Metric and SAE units. Made from durable, oil-resistant hard plastic, it also recommends the correct drill bit or tap size, making it an indispensable, lightweight companion for mechanics and DIY enthusiasts.

Specifications

Material	Plastic
Head Style	Round
Exterior Finish	Plastic
Thread Size	0-80
Point Style	Fein
Metal Type	plastic
Brand	BCP Fasteners
Colour	Black
Head Type	Flat
Item Weight	0.15 Pounds
Thread Type	coarse fine
Thread Coverage	Fully Threaded
Fastener Type	Machine Screw
Set Screw Thread Type	UNC, UNF
Thread Style	coarse fine
Thread Class	fine
Fastener Size	No. 0
Size	No. 0
Item Diameter	1.6 Millimetres
Compatible groove diameter	1.6 Millimeters
Number of Pieces	1
Manufacturer	BCP Fasteners
Model number	BCP675
Special Feature	lightweight
Specific Product Use	professional
Item Weight	68 g
Item model number	BCP675
Power Source	hand powered
Are batteries included?	No

Have a Question? See What Others Asked

Do the holes have threads so you can screw in a bolt?

what is the thickness of this gauge?

will this guage work for very small computer screws ?

Why do they show two different kinds of cards in the picture? One says "pitch" at the top right, and the other says "drill". Which one do we get?

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