Pull studs JIS B 6339 (MAS 403 BT) Form B

306.20.60

EAN-code: 4250001106652

with drill through, incl. O-ring
formerly JIS B 6339

VAT 0% 7,00 €

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Description

ISO 7388-3 - Retention knobs for shank form JD with centric inner cooling supply
Application:

For tools with taper shanks DIN 69871 and JIS B 6339 (MAS-BT)
In machining centres (machines with automatic tool changers)
In NC machines (machines without automatic tool changers)

Installing SK/BT 30 pull studs, a torque of 25 Nm must not be exceeded.We advise you not to use pierced bolts with pull studs SK/ BT 30 due to the weakness of the remaining profile.

Technical details

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Description Symbol Value

Standard

ISO 7388-3

Taper size

Kartiokoko

Body diameter 1

BD1

11 mm

Body diameter 2

BD2

7 mm

Body half taper angle

BHTA

60°

Pull stud thread size

CRKS

M12

Drive size

DRVS

Body length 1

LB1

18 mm

Functional length

23 mm

Torque maximum

TQX

20 Nm Nm

Body diameter 4

BD4

12.5 mm

Coolant entry diameter

CND

2.5 mm

Shank form