The nut and bolt thread checker not only quickly identifies 34 different nut and bolt sizes, including 15 metric sizes (m4 x 0.7 to m16 x 2.0) and 19 standard sizes (6 -32 coarse to 3/4-16 fine), but also comes with 8 imperial drill gauges to meet your needs for fast and accurate identification of a wide range of thread sizes and types.
Our bolt identifier board utilize durable laser etching technology to ensure clear and accurate size marking numbers. This means that no matter how many times you use them, the numbers will not fade or peel off with repeated use, designed to provide you with a long-lasting and reliable experience!
Our thread gauges are crafted from CNC machined anodized 6061 aluminum alloy and hardened SUS304 stainless steel threads to ensure high quality and durability, the surface is anodized to effectively prevent rust and corrosion, this thread gauge is carefully designed to withstand heavy use and ensure consistent strength and accuracy.