Bolt And Screw Gauge For Standard And Metric Coarse And Fine Diameters Lengths And Thread Pitch

All-in-one Bolt & Screw Gauge for standard & metric sizes
✔️ Coarse & fine pitch checks in standard and metric ranges, single gauge

This handy gauge helps identify bolt and screw sizes, as well as thread pitches, across both standard fractional and metric systems. It’s ideal for maintenance, fabrication, and repair tasks in workshops, garages, or on job sites where accurate sizing saves time and prevent cross-threading.

✅ Fractional screw/bolt sizes from #4 to 1 in
✅ Metric screw/bolt sizes from 3 mm to 22 mm
✅ Nuts range from #6 to 5/8 in
✅ Standard lengths up to 7 in; metric lengths up to 180 mm
✅ 1/4 in thick durable plastic with MarineBoltSupply imprint on back
✅ Overall size 8.75 in L x 3.25 in W x 0.25 in thick (222 mm L x 83 mm W x 6 mm T)

💡 What is a bolt and screw gauge used for in hardware projects? This handy tool helps you quickly identify sizes and pitches to ensure proper fit. - Identify standard fractional and metric sizes at a glance
- Verify diameter, length, and pitch to prevent cross-threading
- Speed up part selection and ordering