66 Pcs Nut and Bolt Thread Checker, 34SAE/32Metric Thread Gauges
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- Expanded 66-Piece Thread checker Set: More Sizes to Cover Every Need, Upgrade your toolbox with our 66 detachable thread checkers—34 SAE (imperial, color-coded blue) and 32 metric (color-coded red) sizes—perfect for matching nuts, bolts, and hardware of all types. Each thread gauge is individually nested in a custom foam insert, so you can instantly pull out the exact size you need without rummaging. Unlike bulky chain-type or board-mounted alternatives, our lightweight, flexible design works seamlessly in tight, hard-to-reach spaces—ideal for on-the-go repairs, workshop projects, or job site checks
- Precision and Durable Thread Gauges: Crafted from premium 6601 aluminum, this bolt size and thread gauge delivers professional-level accuracy you can trust. SAE threads comply with Unified Thread Standard (UN) and ANSI B1.1 (2A/2B) certification, while metric threads meet ISO 68-1 (6G/6H) standards—eliminating guesswork and mismatched hardware. The high-quality aluminum construction ensures long-lasting durability, resisting wear and tear even with frequent use, so you can rely on consistent performance for years to come
- 3 Effortless Size Identification Methods: Speed up thread checks with 3 intuitive reading options: laser-engraved scratch-resistant markings on each gauge, a quick-reference size chart, and clearly labeled foam insert slots. Color-coded for instant sorting (blue = SAE, red = metric)—making thread inspection hassle-free for pros and DIYers alike
- Complete SAE Size Coverage (34 Blue Gauges): Crush any imperial threading task with our all-inclusive 34-piece SAE thread gauge set (blue-coded for instant sorting): 2-56 UNC, 3-48 UNC, 4-40 UNC, 4-48 UNC, 5-40 UNC, 6-32 UNC, 6-40 UNF, 8-32 UNC, 8-36 UNF, 10-24 UNC, 10-32 UNF, 12-24 UNC, 12-28 UNF, 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. Perfect for pros and DIYers tackling automotive, plumbing, and workshop projects
- Full Metric Size Range (32 Red Gauges): Never let metric hardware delay your work—our thread checker kit includes 32 essential metric sizes: M2x0.4, M2.5x0.45, M3x0.5, M3.5x0.6, M4x0.7, M4.5x0.75, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5, M11x1.25, M11x1.5, M12x1.0, M12x1.25, M12x1.5, M12x1.75, M14x1.5, M14x2.0, M16x1.5, M16x2.0, M18x1.5, M18x2.5, M20x1.5, M20x2.5, M22x2.0, M22x2.5, M24x2.0, M24x3.0. It handles every metric threading task, from small electronics to heavy machinery
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Select a product to estimate shipping.Does this thread checker fit standard bolt and nut sizes?
Yes, it fully covers standard sizes for both SAE (imperial) and metric bolts/nuts. The kit includes 34 SAE gauges (complying with Unified Thread Standard (UN) and ANSI B1.1 (2A/2B)) and 32 metric gauges (meeting ISO 68-1 (6G/6H) standards).
Are metric and SAE gauges included in this kit?
Yes, the 66-piece set combines both metric and SAE gauges:
32 metric gauges: Cover sizes from M2x0.4 to M24x3.0;34 SAE gauges: Cover sizes from 2-56 to 1-8, adapting to global hardware standards.
Can this thread checker work in confined or hard-to-reach spaces?
Absolutely. Lightweight, flexible, detachable (vs. bulky chain/board gauges). Each removes individually from foam—access tight spaces (engine bays, pipe joints, workshop corners) for on-site repairs/checks.
Product details





| Main Specification | |
|---|---|
| Product Care Instructions | Store In A Dry Place or away from extreme temperatures. Handle with care to avoid damage or loss of individual gauges. See more |
| Included Components | Storage Case or Thread Gauge Set |
| Colour | Blue or Red |
| Manufacturer | Miucoguier |
| Item Length | 1 Inches |
| Brand | Miucoguier |
| Material | Aluminum Alloy |
| Item Weight | 0.46 kg |
| Product information | |
| Number of Packs | 1 |
| Technical Details | |
| Manufacturer Part Number | Thread checker 66 |
| Material Type | Aluminum Alloy |
| Item details | |
| Model Number | Thread checker 66 |
| Others | |
| Item Highlight | DIY or Aluminum Precision Bolt Finder Quickly Identifies Nut/Bolt Sizes. Ideal for Workshops or Repairs & Tight Spaces See more |
| Product Type | Thread |






