Stringing machine replacement springs and metal sleeves

Replacement spring for spring-type stringing machines.
I purchased it, but I couldn't remove the round nut and hex screw, so I didn't use it.
After purchase, please check the tension yourself.
Also, please be responsible for any incompatibility.
We ask that only those who understand and accept this purchase.

Spring type: Compression coil spring
Free height (mm): 65
Outer diameter (Φmm): 12
Wire diameter (Φmm): 1.2
Maximum deflection (mm): 36.3
Other: Allowable tolerance is JIS Class 2
Material: Piano wire (SWP-A)
Maximum load (N): 32.57
Spring constant (N/mm): 0.9