Spanner Sizes for Bolts and Set Screws

Know the size of the bolt but unsure of the spanner size or you know the spanner size, but you don’t know the size of the bolt? Either way, this is where our converter stands out above the rest because in most cases it helps answers those questions. Displays spanner sizes for metric and imperial bolts and set screws across all the different standards, DIN, AS. JIS, ISO.