- Order number: SM1273-78
Material: plunger: St: steel, zinc plated, blue passivated / Ni: stainless Steel 1.4305
pawl: stainless steel 1.4301
knob: plastic (Polyamid PA) black-grey, temperaturresistent up to 80 °C
push button: plastic (Polyamid PA) red
spring: stainless steel 1.4310
Pressing = unlocking
The rectangular shape of the locking pawls cretaes a linear contact area which gives an increased axial shear strength. The load values given in the above table at shear stress are theoretically obtained and indicative only without taking into account safety factors. It can easily be fitted with the ball chains SM1273-87.