46 thread sizes with this precise engineered thread checker gauge, featuring comprehensive holes for screws, nut, and bolts to verify compliance with industry standards Streamlines production line inspections, repair shop diagnostics, or construction site installations by quickly verifying screw compatibility and mismatched fasteners Engineered with aerospace grade aluminum, this screw gauge combines portability with laboratory grade accuracy for professional bolt measurement across industrial and hobbyist applications Ideal for mechanics, engineers, and DIYer enthusiasts requiring reliabled thread measurement in manufacturing workshops or home garage projects Its square shaped aluminum body ensures nonslip grip and stable placement, while color coded holes enable fast identification double thread specifications, Manufacturer: Uqezagpa