About This

• 70 Nut and Bolt Thread Checker: This versatile tool combines a 50-size nut and bolt thread checker (25 metric sizes from M2.5 x 0.45 to M20 x 2.5, and 25 standard sizes from #4-40 Coarse to 7/8-14 Fine), along with 20 drill bit gauges and both imperial & metric rulers for quick reference.
• 25 Metric Thread Sizes: M2.5*0.45, M3*0.5, M3.5*0.6, M4*0.7, M5*0.8, M6*1.0, M7*1.0, M8*1.0, M8*1.25, M8*1.5, M10*1.0, M10*1.25, M10*1.5, M12*1.0, M12*1.25, M12*1.5, M12*1.75, M14*1.5, M14*2.0, M16*1.5, M16*2.0, M18*2.0, M18*2.5, M20*1.5, M20*2.5
• 28 Standard Thread Sizes: 4-40 Coarse, 6-32 Coarse, 8-32 Coarse, 10-24 Coarse, 10-32 Fine, 3/16-24 Fine, 12-24 Coarse, 1/4-20 Coarse, 1/4-28 Fine, 5/16-18 Coarse, 5/16-24 Fine, 3/8-16 Coarse, 3/8-24 Fine, 7/16-14 Coarse, 7/16-20 Fine, 1/2-13 Coarse, 1/2-20 Fine, 9/16-12 Coarse, 9/16-18 Fine, 5/8-11 Coarse, 5/8-18 Fine, 3/4-10 Coarse, 3/4-16 Fine, 7/8--9Coarse, 7/8--14 Fine
• Precision Sizing: Our nut and bolt thread checker is meticulously crafted from CNC-machined to adhere to the Go & No-Go Class 2B ANSI Standard, ensuring accurate sizing for both internal and external threads. Say goodbye to second-guessing and mismatched hardware – embrace flawless accuracy effortlessly.
• Multi-Functional Design: Our screw thread gauge is crafted from a 0.24-inch thick, 6061 aluminum with a sleek anodized finish, ensuring durability and resilience. Convenient 15CM and 6-inch rulers on both sides. It's a tool designed for lasting reliability and convenience.
• Easy to Use: Our bolt and nut identifier gauge simply matches your nuts and bolts to the corresponding slots to identify the size and pitch accurately. The intuitive design and easy-to-read laser-etched markings make using our thread checker a breeze, even for beginners.
• Versatile Mounting Options: Featuring a convenient hanging hole and four anti-slip silicon feet, our thread checker offers versatile mounting options. Hang it on your workshop wall for easy access, or let it sit securely on any surface as you work – the choice is yours!