ALUMINUM PLATE AND STAINLESS STEEL STUD: The thread gauge tool is made of solid aluminum alloy with a bright orange anodized surface. The threaded holes go directly through the main aluminum plate and the studs are all made of stainless steel, which is burr-free and very smooth to the touch. The threads of nuts, washers, bolts and machine screws are easy to measure accurately. Wide range of sizes to check: Equipped with two different types of thread gauges for a wide range of options. The red thread gauge nut and bolt thread checker instantly recognizes 28 different sizes, including metric thread sizes from M4 x 0.7 to M14 x 2.0, and inch thread sizes from #6 - 32 coarse to 1/2 - 20 fine. One-stop shop for verification of all standard hardware. The black version of the thread gauge is lightweight, portable, and has the same measuring capabilities. CONVENIENT STORAGE: Bolt gauges come with screw holes for easy mounting on walls, workbenches or toolboxes. In addition, the location of the screw holes has been optimized to avoid hand injuries caused by imperfections on the edges of the holes, and to eliminate possible interference with normal use when installing screws or nails. HIGH-PRECISION MACHINING: The thread inspection tool is rust and corrosion resistant and is machined with high precision to ensure that every internal and external thread conforms to the Go & No Go 2B ANSI standard specification, helping to eliminate the guesswork when identifying screws and bolts. Specialized laser etching technology is used to create precise markings on the thread inspection plate, which will remain legible for years without fading or scratching. SERVICE: We provide pre-sale and after-sale service for this bolt sizer, if you have any questions during the use or subsequent products you can contact our customer service, we are 24 hours online to help you at any time.
