Stainless Steel Thread Gauge | Screw Pitch & Diameter Caliper

Stainless Steel Thread Gauge — Precise Screw Pitch & Diameter Measurement

Take the guesswork out of fastener identification with this professional-grade Thread Checker Screw Measurement Ruler. Built from 304 stainless steel and engineered with dual-scale precision, this compact caliper lets you quickly and accurately measure thread pitch, bolt diameter, nut sizing, and screw specifications — whether you're working on a home DIY project, craft build, or industrial application.

Key Features

• 304 Stainless Steel Construction: Highly resistant to wear, corrosion, and demanding workshop conditions, ensuring long-term durability and consistent performance.
• Double-Measurement Integration: Combines two measurement methods in one tool for optimized efficiency and versatile compatibility across fastener types and sizes.
• Dual-Scale Visibility: Clear double-scale markings with high-precision etching minimize reading errors and deliver reliable numerical clarity every time.
• Ergonomic Anti-Slip Design: Comfortable, non-slip grip ensures steady handling during use — ideal for both quick checks and detailed measurement workflows.
• Compact & Portable: Measuring just ~10 × 6 cm (3.94 × 2.36 in) and weighing only ~35 g, this thread gauge slips easily into a tool pouch or pocket.
• Wide Fastener Compatibility: Measures bolts, nuts, screws, and bits across a broad range of sizes (0–80 mm range), making it a go-to tool for cross-industry use.

Specifications

• Material: Stainless Steel (304)
• Measurement Range: 0–80 mm
• Dimensions: ~10 × 6 cm / 3.94 × 2.36 in
• Weight: ~35 g
• Battery Required: No
• Made in: Mainland China

What's in the Box

• 1× Thread Gauge / Screw Measurement Ruler

Perfect For

Home improvement enthusiasts, craft makers, machinists, mechanics, and hardware professionals who need a fast, accurate way to identify and match thread specifications for bolts, nuts, and screws.

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Authoritative Reference

For best practices in precision measurement and tool safety in the workshop, refer to guidance from the U.S. Occupational Safety and Health Administration (OSHA) — Hand & Power Tools. For metrology and measurement standards, visit NIST Weights & Measures.

Note: Due to variations in lighting and display settings, the item color may appear slightly different from images. Manual measurements may vary by 1–2 cm.

Frequently Asked Questions

Q: What types of fasteners can this thread gauge measure?

A: This stainless steel thread gauge is compatible with a wide range of fasteners including bolts, nuts, screws, and bits. Its 0–80 mm measurement range and dual-scale design make it suitable for metric thread pitch and diameter identification across home, craft, and industrial applications.

Q: Is this thread pitch caliper suitable for beginners?

A: Absolutely. The ergonomic, anti-slip design and clear dual-scale markings make it easy for both beginners and experienced users to get accurate readings quickly. No batteries or complex setup required — simply place the gauge against your fastener and read the measurement.

Q: How durable is this thread gauge for regular workshop use?

A: The gauge is crafted from 304 stainless steel, known for its excellent resistance to wear and corrosion. This makes it well-suited for repeated use in demanding workshop or industrial environments without compromising measurement accuracy.

Q: What is the measurement range of this screw pitch ruler?

A: The thread gauge covers a measurement range of 0–80 mm, accommodating the most common bolt, nut, and screw sizes used in DIY, craft, and professional settings.