INDICATORS ON TYPES OF LEAD SCREW YOU SHOULD KNOW

These screws are generally often called Robertson’s. They've sq. center place which avoid them from stripping out.The JIS screwdriver can be a cruciform, like Phillips, but is intended to resist camming out. Although it is feasible to utilize a Phillips or Frearson driver on these types of screws, you’ll have a heightened danger of damaging the

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