44PCS NUT AND BOLT THREAD CHECKER SET

Description

Technical Specifications

Model Code: TNUTCB044
Number of Pieces: 44 pcs
Thread Types Supported: Metric & Imperial (SAE/UNC/UNF)
Colour Coding: Red (Metric), Blue (Imperial)
Metric Range: M3 × 0.5 up to M24 × 3.0
Imperial Range: 6-32 up to 1″-12
Application: Thread identification (internal & external)
Key Features
44-piece dual-purpose nut and bolt thread identification system
Supports both metric and imperial (SAE/UNC/UNF) thread standards
Colour-coded system for quick and easy identification (Red = Metric, Blue = Imperial)
Clearly laser-marked thread sizes for accuracy and durability
Wide thread size coverage for workshop and engineering applications
Durable carry case with molded slots for organised storage
Allows fast verification of both internal and external threads
Metric Thread Sizes (Red)
M3 × 0.5
M4 × 0.7
M5 × 0.8
M6 × 1.0
M7 × 1.0
M8 × 1.0, M8 × 1.25
M10 × 1.0, M10 × 1.25, M10 × 1.5
M12 × 1.25, M12 × 1.5, M12 × 1.75
M14 × 1.5, M14 × 2.0
M16 × 1.5, M16 × 2.0
M20 × 1.5, M20 × 2.5
M24 × 2.0, M24 × 3.0
Imperial Thread Sizes (Blue)
#10-24, #10-32
1/4″-20, 1/4″-28
5/16″-18, 5/16″-24
3/8″-16, 3/8″-24
7/16″-14, 7/16″-20
1/2″-13, 1/2″-20
9/16″-12, 9/16″-18
5/8″-11, 5/8″-18
3/4″-10, 3/4″-16
1″-8, 1″-12
8-32, 6-32, 6-40
Applications
Workshop and mechanical maintenance
Automotive repair and servicing
Engineering and fabrication environments
DIY and home toolkits
Frequently Asked Questions
Metric vs imperial spanners — which do I need?
This thread checker supports both metric and imperial systems, making it ideal if you work on a mix of vehicles, machinery, or equipment where both standards are commonly used.
How does a thread checker work?
Each gauge is precisely machined to match a specific thread size. Simply screw the bolt into the gauge or test a nut on the corresponding stud to quickly identify the correct size and pitch.
Why is colour coding important?
The red (metric) and blue (imperial) colour coding allows for quick visual identification, saving time and reducing mistakes when working in fast-paced environments.
Can this tool check both internal and external threads?
Yes, it is designed to verify both internal (nuts) and external (bolts) threads, making it a versatile workshop essential.
Is this suitable for professional workshops?
Absolutely. Its wide range of sizes, durable construction, and organised carry case make it ideal for professional mechanics, engineers, and maintenance teams.