2026 New Nut and Bolt Thread Checker (SAE & Metric)

Stop Guessing. Start Identifying in Seconds.

Tired of digging through random nuts and bolts trying to find the right fit?

This 55-Size Thread Checker lets you instantly identify both Standard (SAE) and Metric sizes — saving time, frustration, and unnecessary trips to the hardware store.

Perfect for garages, workshops, tool sheds, and professional repair environments.

FEATURES

• Masterful Craftsmanship: TidePick's thread checker is crafted from 6061 aluminum and features durable, easy-to-read laser-etched markings. All pillars are made from durable SUS304 and machined to the ultimate precision, ensuring each bolt and thread complies with the Go & No Go Class 2B ANSI Standard gauge.

• Wide-Ranging Size Detection: 16 Metric thread sizes from M3 x 0.5 to M16 x 2.0, and 20 Imperial threads from #4 - 40 Coarse to 3/4 - 16 Fine. Also included are 19 drill gauges for precise drill size identification. Provides comprehensive identification for your standard hardware.

• Laser-Etched Double Scale: This bolt size finder features durable laser-etched 6 inch and 15cm rulers on the edge, providing quick, accurate, and user-friendly identification of various bolt, screw, nut and washer sizes.

• Convenient Design: Our thread gauge has four non-slip support feet for stable placement on the workbench, and two hanging holes are reserved for hanging on the tool wall. Laser-precision cutting of unnecessary aluminum plates makes it lightweight and easy to carry.

• Easy to Use: The nut and bolt thread checker simply matches your nuts and bolts to the corresponding slots to identify the size and pitch accurately. It's a tool designed for lasting reliability and convenience.

SPECIFICATIONS

• Material: 6061 aluminum and SUS304
• Weight: 15.5 oz (≈ 439 g)
• Package Dimensions: 8.07 × 7.17 × 1.34 in (20.5 × 18.2 × 3.4 cm)