Material of closed body turnbuckle:
Seamless cold drawn tubes of grade L 235 or L 355 steel as in DIN EN 10224, in China
Q235A,Q345B steel.
Stainless steel is Grade A4 I as in DIN EN ISO 3506-2, in China 304,316 or 316L
stainless steel..

 Screw threads of turnbuckle:
The threads of turnbuckles shall be metric coarse pitch threads as in DIN IS0 965-2,
produced to tolerance 6H.
Turnbuckle with Right-hand thread and Left-hand thread, as RH and LH thread.