Type A - without lock nut, with knob.
Type AK - with lock nut, with lifting knob.
Type D - without lock nut, without knob.
Type DK - with lock nut, without knob.
Identification 1 Pin without internal thread.
Identification 2 Pin with internal thread.
GN313 Spring bolts, Stainless Steel, Plastic Knob
The plunger of the these stainless steel spring bolts does not protrude in the inoperative position.
They can be operated manually or in Type D and DK mechanically (pneumatic cylinder, cam plate, etc.) when it will protrude only as long as it is operated.
Using the internal thread at identification 2 on the pressure side, special pressure bolts or a rod arrangement can be operated, for example.
Threaded socket - Stainless Steel NI, blackened.
Plunger - Stainless Steel NI AISI 303, chemically nickel plated.
Knob - Plastic (Polyamide PA), matt black, not removable.