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🛠️ Nail every measurement with MarineBoltSupply’s ultimate gauge!
The Nut, Bolt & Screw Gauge by MarineBoltSupply is a high-quality, durable plastic tool designed to measure standard and metric fasteners, including coarse and fine thread pitches. It supports fractional sizes from #4 to 1" and metric sizes from 3mm to 22mm, with lengths up to 7" (standard) and 180mm (metric). Compact and reliable, it’s a must-have for professionals demanding precision in fastening.






| ASIN | B06X15YV6X |
| Best Sellers Rank | #79,699 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #259 in Nut & Bolt Assortment Sets |
| Brand | Marine Bolt Supply |
| Color | Green |
| Compatible Groove Diameter | 7 inches |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,833) |
| Fastener Size | #4 to 1", "3mm to 22mm |
| Fastener Type | Nuts |
| Finish Types | Unfinished |
| Head Type | Hex |
| Item Diameter | 1 inches |
| Item Dimensions | 8.75 x 3.25 x 0.25 inches |
| Item Hardness | thick hard |
| Manufacturer | CMC Industrial Supply |
| Manufacturer Grade | Grade 2 |
| Material Type | Plastic |
| Model | 1-NBG |
| Number Of Items | 1 |
| Number of Pieces | 1 |
| Part Number | 1-NBG |
| Screw Head Style | Hex |
| Size Name | 1/2-13 UNC |
| Thread Class | 3B |
| Thread Coverage | Unthreaded |
| Thread Style | Right Hand |
| Thread Type | Unc |
| Unit Count | 1 Count |
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