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Thread Detective Identifiers for Threaded Fasteners

How many times have you needed to replace a bolt or nut that you just couldn't identify? Wouldn't you like some help figuring out what size plumbing fitting you're trying to find?

Thread Detective® to the rescue!

The Thread Detective is a collection of special threaded steel fittings, each with a different SAE (inch) or metric (mm) thread size. Each fitting has both male and female threads so you can identify nuts, bolts, studs, even plumbing fittings. Each fitting has its thread size permanently printed in bold numbers for easy reference.

The Standard kit includes the most common hardware sizes found on formula cars and sports racers, as well as in brake system plumbing.
The Jumbo kit covers larger hardware sizes typically found on production sedans. Several of the sizes also match AN plumbing fittings in oil and fuel systems.
The Mini kit includes just the smallest micro screw sizes found in assemblies such as computers and other electronics.
The Lug Nut kit focuses just on popular sizes of lug nuts and wheel studs. Great for tire shops!
The Full Set includes all four kits to cover hardware from #1 through 1" and from M1.2 to M24!

The Pipe Thread kit makes it easy to identify British threaded plumbing fittings using BSPP (parallel British pipe threads).

Recent Top Seller for this product group

Jumbo Thread Identifier, Inch 5/8 to 1.00, Metric M14 to M24

Jumbo Thread Identifier, Inch 5/8 to 1.00, Metric M14 to M24

The Jumbo Thread Detective has male/female threaded fittings that help identify the size and pitch of large SAE and metric bolts, nuts, and studs.

ImagePart No.DescriptionPriceStatus
Thread Identifier Set of 4: Mini, Std, Jumbo, Lug Nut/Stud

3319-009 

Thread Identifier Set of 4: Mini, Std, Jumbo, Lug Nut/Stud

 
4.8
$130.99In Stock
Standard Thread Identifier, Inch #6 to 1/2, Metric M4 to M12

3319-006 

Standard Thread Identifier, Inch #6 to 1/2, Metric M4 to M12

 
5.0
$42.99In Stock
Jumbo Thread Identifier, Inch 5/8 to 1.00, Metric M14 to M24

3319-007 

Jumbo Thread Identifier, Inch 5/8 to 1.00, Metric M14 to M24

 
5.0
$42.99In Stock
Miniature Thread Identifier, Inch 1-64 to 5-40, M1.2 to M3.5

3319-005 

Miniature Thread Identifier, Inch 1-64 to 5-40, M1.2 to M3.5

 
5.0
$42.99In Stock
Lug Nut and Wheel Stud Thread Identifier

3319-008 

Lug Nut and Wheel Stud Thread Identifier

 
5.0
$19.99In Stock
BSPP Pipe Thread Identifier, 1/8 BSPP to 3/4 BSPP

3319-011 

BSPP Pipe Thread Identifier, 1/8 BSPP to 3/4 BSPP

 
5.0
$44.99In Stock
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