DIY Electrician? Prove It."Tightening furniture screws with a hexagonal (6-sided) hole" – What tool is needed?24%Next Correct Incorrect An Allen wrench (hex key) fits into hexagonal screw heads, common in furniture assembly. "Tightening furniture screws with a hexagonal (6-sided) hole" – What tool is needed? Hammer Allen wrench Flathead screwdriver Wire fishing pole 24%