This is a replacement screw assembly that will fit all Products Engineering Corporation (PEC) 12", 18" and 24" combination square heads, center finders and protractor heads .

• Measuring & Layout Tools Replacement screw assembly for PEC 12" combination square and components 12-CSA#0058/14

Measuring & Layout Tools Replacement screw assembly for PEC 12" combination square and components 12-CSA#0058/14Squares