top of page


SX3 KFS KAT 2 und 2-3 
for catch profile, hardened and tempered


SX3 KFS 11,5x52mm

4x27mm | 5x32mm | 6x42mm | 8x42mm | 10x45mm | 11x45mm

Other sizes on request.

SX3 KFS KAT 2 and 2-3 for catch profile, hardened and tempered


The SIMTECX SX3 functional folding pin with triple safety is used as a safety element (pin safety) in machine and vehicle construction. 


This folding pin combines three decisive and permanently constant safety functions in its pin head.


The patented bolt head/spring ring design holds the spring ring in the groove of the bolt head in both the open and closed positions. In the open position, unintentional backward or forward folding is impossible. In the closed state, only opening desired by the user is possible.


This results in three major advantages for every user


--> no automatic opening

--> no automatic closing

--> no loss of the pin

SX3 KFS closed sideways

SX3 Functional linch pin

Technical specifications

bolt head(all dimensions in mm)


  4 x 27

  5 x 32

  6 x 42        

  8 x 42        

10 x 45          

11 x 45           

bolt head

  9,40  x   7,40  x  6,90  

  9,50  x   9,30  x  6.70

12.00  x 12.10  x  8.70

13.40  x 13.00  x  9.15

13.40  x 14.00  x  9.15

13.40  x 15.00  x  9.15

ø spring









Galvanic galvanized:


Zinc plating (silver-bluish iridescent)

8-12 µ Cr(VI)-free, passivation

transparent (silver) sealed

spring washer





Suitable for different shaft diameters.

see above ø spring

8-12 µ 

Zinc-Nickel Cr(VI)-free


Size information (all in mm)

Size              Shaft                   

  4 x 27            10 - 16

  5 x 32            16 - 22  

  6 x 42            22 - 32 

  8 x 42            22 - 32        

10 x 45            25 - 32      

11 x 45            25 - 32

SX3 KFS open

SX3 Functional linch pin


The SX3, a product - 100% MADE IN GERMANY -.

The complete development and production of the 

bolt/spring ring is carried out in Germany.


The precision bolt offers the highest security against the automatic opening of the spring ring. Due to the choice of steel, the specially developed bolt head as well as the bolt shaft gets its necessary hardness on the outside and its required toughness in the steel core.


The spring ring is made of a specially manufactured spring steel wire. The uniquely developed shape of the spring ring locks into the groove in the bolt head and provides maximum security against unintentional opening and closing.


Endurance tests have shown that the split pin provides consistent security even after several thousand closing and opening operations. The spring washer shows no signs of fatigue and is still held in the groove just as it was at the beginning.


The pin head was deliberately designed without a third hole to accept a safety chain or safety cord. This makes it possible to reduce the bolt head dimensions. Because the spring washer is held firmly in the groove, a safety chain can be attached directly to the spring washer as required, thus eliminating the need for a third hole.

SX3 KFS with flag

SX3 Functional linch pin

Care and Maintenance

The SX3 can be used under the most extreme conditions!


In order to be able to guarantee optimum and consistent quality in the long term, you should put a little oil or penetrating oil in the two holes every now and then. Done!

SALES SUPPORT(for dealers)

X-VKA vorne
Kurzinfo Titelbild

SX3 X-sales display

Test display for your customers incl. flyer and hanger for different sizes.

Let your customers decide!


With the X-sales display, your customer has the opportunity to try out the SX3 directly on your premises.


The SX3 8x42 mm or smaller can be put through its paces on the pre-assembled shaft with a left and right hole of 8 mm diameter.


Should the customer have any questions, you can provide practical assistance.

SX3 quick info

Handling and advantages as well as all producers


Provide the customer with instructions!


The short info explains the exact handling, the advantages as well as the benefit for the customer. 


Thus, the SX3 explains itself!



If you would like to provide the customer with even more information, then simply refer to the following link:

Sticker SX3 f. Machines

SX3 sticker (for attaching to machines)

Explanation of how the SX3 works

Größe: 52 x 74 mm


Flag Made in Germany
bottom of page