2-2 Steels < HRC32
Unalloyed and Alloyed Steels; Tensile Strength 1000N/mm2(about HRC32)
Blue or Green Ring
Spiral Points for Through Holes
Form B: 4~5 chamfering.
Tolerance: ISO1-4H/5H, ISO 2-6H, ISO-6G, Oversize-7G,
JIS: OH5~10
Steam Tempered Surface(also called VAP in Germany)
Blue or Green Ring
Spiral Points for Through Holes
Form B: 4~5 chamfering.
Tolerance: ISO1-4H/5H, ISO 2-6H, ISO-6G, Oversize-7G,
JIS: OH5~10
Steam Tempered Surface(also called VAP in Germany)
Best Art. No. in normal stock: DIN 371: 7045/78
DIN376: 7055/78,
JIS B0251/5: 7265/78/JS & 7275/78/JS
7265/PM/JS&7275/PM/JS
Other Art. No. for Best recommendation: DIN371: 7010/78, 7045/80
DIN376: 7011/78, 7055/80
*Please refer to BOSS DIN CATALOGUE for Specification and Technical Data*


