There are many types of fasteners available in the marketplace. Selecting the right type of fastener often depends on the job to be accomplished. Each type of fastener often has a matched screwdriver head type.
There are many types of fasteners available in the marketplace. Selecting the right type of fastener often depends on the job to be accomplished. Each type of fastener often has a matched screwdriver head type.
Doesn't JIS always have a dot? It's also more rounded.
Indeed. My experience is from assembling semi trucks 
