📌 Product Overview

This 55-piece nut and bolt thread checker set provides a convenient way to identify common SAE and metric thread sizes. The detachable gauges allow individual nuts and bolts to be checked directly, making the set useful for automotive work, mechanical repairs, workshop projects, maintenance, and DIY applications.

The kit includes 30 SAE thread gauges and 25 metric thread gauges. Each gauge is individually removable and stored in a fitted foam insert for organized access. Size markings are provided directly on the gauges and storage insert to make thread identification easier.

📌 Key Features & Benefits

  • 55-Piece Thread Checker Set: Includes 30 SAE gauges and 25 metric gauges.
  • SAE & Metric Sizes: Covers a broad selection of commonly used imperial and metric thread sizes.
  • Detachable Gauges: Individual gauges can be removed for convenient thread checking in different work areas.
  • Clear Size Identification: Thread dimensions are marked directly on the gauges for quick reference.
  • Color-Coded System: SAE gauges are blue and metric gauges are red for easier identification.
  • Laser-Engraved Markings: Size information is engraved for clear, durable identification.
  • Foam Storage Insert: Keeps individual gauges organized and helps prevent them from becoming scattered.
  • Compact Organization: Provides a convenient way to keep multiple thread-checking sizes together.
  • Aluminum Construction: Gauges are made from aluminum for a lightweight and practical design.
  • Quick Size Checking: Helps identify matching thread dimensions without relying on guesswork.
  • Workshop Friendly: Suitable for professional maintenance areas, garages, repair work, and home workshops.
  • Useful for DIY Projects: Convenient for identifying hardware during assembly, repair, and replacement projects.

📌 Multiple Uses / Applications

This thread checker set is suitable for identifying thread sizes during:

  • Automotive repairs
  • Mechanical maintenance
  • Machinery servicing
  • Hardware replacement
  • Garage projects
  • Workshop applications
  • Equipment repairs
  • Fabrication projects
  • Construction projects
  • Home maintenance
  • DIY projects
  • General nut and bolt identification

The detachable design is particularly useful when checking hardware in confined or difficult-to-reach areas.

📌 Product Details / Specifications

  • Product Type: Nut and Bolt Thread Checker Set
  • Total Pieces: 55
  • SAE Gauges: 30
  • Metric Gauges: 25
  • Gauge Material: Aluminum
  • SAE Color: Blue
  • Metric Color: Red
  • Storage: Custom Foam Insert
  • Gauge Style: Detachable
  • Markings: Engraved Size Identification

SAE Thread Sizes

The 30 SAE gauges include:

  • 2-56 UNC
  • 4-40 UNC
  • 5-40 UNC
  • 6-32 UNC
  • 6-40 UNF
  • 8-32 UNC
  • 10-24 UNC
  • 10-32 UNF
  • 12-24 UNC
  • 3/16-24 UNC
  • 1/4-20 UNC
  • 1/4-28 UNF
  • 5/16-18 UNC
  • 5/16-24 UNF
  • 3/8-16 UNC
  • 3/8-24 UNF
  • 7/16-14 UNC
  • 7/16-20 UNF
  • 1/2-13 UNC
  • 1/2-20 UNF
  • 9/16-12 UNC
  • 9/16-18 UNF
  • 5/8-11 UNC
  • 5/8-18 UNF
  • 3/4-10 UNC
  • 3/4-16 UNF
  • 7/8-9 UNC
  • 7/8-14 UNF
  • 1"-8 UNC
  • 1"-12 UNF

Metric Thread Sizes

The 25 metric gauges include:

  • M2 x 0.4
  • M2.5 x 0.45
  • M3 x 0.5
  • M4 x 0.7
  • M5 x 0.8
  • M6 x 1.0
  • M7 x 1.0
  • M8 x 1.0
  • M8 x 1.25
  • M10 x 1.0
  • M10 x 1.25
  • M10 x 1.5
  • M12 x 1.25
  • M12 x 1.5
  • M12 x 1.75
  • M14 x 1.5
  • M14 x 2.2
  • M16 x 1.5
  • M16 x 2.0
  • M18 x 1.5
  • M18 x 2.5
  • M20 x 1.5
  • M20 x 2.5
  • M24 x 2.0
  • M24 x 3.0

How to Use

Select the appropriate SAE or metric gauge and compare it with the nut or bolt being identified. Match the thread form and size carefully, then use the marked dimensions to determine the corresponding thread specification.

For organized storage, return each gauge to its designated position in the foam insert after use.

📦 Shipping Policy

Orders are processed and shipped according to the handling time stated in the listing. Please verify your shipping address and order information before completing checkout.

If there is a delivery issue or your package arrives damaged, please contact us first with the relevant details so we can review the situation and assist with an appropriate resolution.

🔁 Return Policy

Returns are accepted only for items that arrive damaged or faulty. If there is a problem with your order, please contact us first and provide details about the issue. We will review the situation and assist with an appropriate resolution.

💳 Payment Policy

Payment is required at checkout. Secure payment is available through eBay-approved payment methods. Please complete payment through the eBay checkout system so your order can be processed correctly.