Special M30 turnbuckle with ratchet

1. Material is 42CrMoV

2. Turnbuckle exceed DIN1478, L is 305mm and welded in ratchets

a) Turnbuckle made from steel tube (for sizes up to M48)

b) Turnbuckle made from round steel bar (for sizes M56 and above)

4 Semi-finished products 
4.1 Turnbuckles made of steel 
For turnbuckles of sizes up to M48, seamless cold drawn tubes of grade L 235 or L 355 steel as in
DIN EN 10224 shall be used. The nominal dimensions of the tubes shall be as specified in DIN EN 10220. 
For turnbuckles of sizes M56 and above, round bars as in DIN 1013-1 made of grade S235JR or S355JR
steel as in DIN EN 10025 shall be used. 
4.2 Turnbuckles made of stainless steel 
Grade A4 austenitic steel as in DIN EN ISO 3506-2 shall be used.