What to Know Before You Order
YSC-10 Tee Hinge Joint Set belongs to the family of cast and pressed fittings that hold a 28 mm tube frame together. Individually it is a small casting with one bolt; collectively these parts decide whether a workstation behaves as one rigid structure or as a set of tubes leaning against each other.
Points that decide whether it works
- Specified torque for an M6 bolt in this family is typically 8 to 10 Nm. Two fitters working by feel will differ by up to a factor of two, and the frame that holds its rating is the one assembled with a wrench rather than a hex key and good intentions.
- Joint halves are tightened to clamp, not to pin. The structure holds because friction between the coating and the casting exceeds the load trying to rotate the tube — which makes bolt torque a structural specification, not a preference.
- Ask for the ESD version explicitly if the cell is grounded. A standard painted joint sitting in an otherwise dissipative workstation interrupts the path at the most inconvenient place.
- Confirm the pipe you are joining: 28 mm OD is the standard, but wall thickness changes how much clamping travel the joint has. Thin-wall and thick-wall tube are not always interchangeable in the same fitting.
- Mark each joint with a paint pen once torqued. A broken line means something moved, and it is visible from across the aisle without touching the frame.
Frequently Asked Questions
Do you supply an ESD version?
Yes. The dissipative version is specified where the workstation is grounded, and it needs to be ordered explicitly rather than assumed — mixing standard and dissipative joints in one frame breaks the path.
What torque should I use?
Typically 8 to 10 Nm for an M6 bolt in this family, then again after 24 to 48 hours once the coating has settled. Use a wrench, not feel; the difference between two fitters is larger than most people believe.
How much load can this joint carry?
The joint is rarely the first thing to fail — the tube span usually gives way first, by sagging rather than breaking. What limits a frame is joint stiffness under sideways load, which is why torque and retorquing matter more than the catalogue weight figure.
