56 Thread Checker for Standard and Metric Bolts, 30 SAE and 26 Metric Size Thread Gauge with Inch and CM Ruler, Wall Mount Bolt Size Finder for Precise Measurement and Quick Nut and Bolt Identity, Raised Height Nuts for Coarse and Fine Threads
✔️ 30 SAE & 26 Metric sizes with raised heights for large threads
The 56-thread checker is a compact, CNC‑machined bolt thread gauge set designed to identify both SAE and metric sizes, with raised-height nuts on select sizes to smoothly handle coarse and fine threads. This wall‑mount tool is ideal for auto shops, machine shops, garages, and DIY workbenches where fastener identity matters and quick decisions are a must.
✅ 56-piece screw size gauge set with both male and female threads for nuts and bolts
✅ 30 SAE sizes from 2-56 Coarse to 1/2-20 Fine
✅ 26 metric sizes from M2x0.4 to M24x3.0
✅ Raised-height nuts on select sizes for easier measurement of large threads
✅ ANSI Class 2B Go/No-Go CNC precision for reliable sizing
✅ Rulers on both sides: 25 cm (250 mm, 9.84 in) and 10 in (254 mm)
✅ Wall-mount design with a hanging hole for easy access in busy spaces
✅ Compact, handier tool for auto, carpentry, welding, plumbing, and shop use
✅ Helps quickly classify mixed nuts and bolts for faster repairs
💡 What is a bolt thread gauge used for and why should a handy shop keep one?
It’s a handy tool that makes quick work of sizing and matching fasteners across SAE and metric standards, helping you avoid misfits and cut down repair time.
- Identify thread pitch and major and minor diameters for standard and metric fasteners
- Quickly sort mixed bolts and nuts to prevent wrong purchases and assembly errors
- Boost efficiency in automotive, plumbing, and metalworking projects
- Works with coarse and fine threads and includes rulers for fast checks