Type A - without lock nut
Type AK - with lock nut
GN350 Levelling Set, Long Model, Optional Lock Nut
These GN 350 levelling sets are used for levelling and linking operations.
They comprise a threaded upper sleeve and a female threaded lower sleeve. The fine thread allows a stepless and precise setting and locking using the C-Spanner DIN1810. A locking ring also serves as a height limiter for the max. height.
Normally this screw is permanently and securely locked by the static load created when the mounting screw is tightened. Should this not be sufficient, the use of a locknut (Type AK) is recommended.
Steel ST, 1.7225 (42 CrMo 4 V), zinc plated, blue passivated.
Stainless Steel NI AISI 303 (X 10 CrNiS 18-9).
F1: max.total load.
F2: max. load after deduction, of the max. preload, for screws 8.8, = 0,125 (Steel), for screws 6.8, = 0,14 (Stainless Steel).