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  3. Machine and fixture components
  4. Screws / nuts / washers
  5. Hexagon head bolts, stainless steel with seal washer in Hygienic DESIGN
    6. K1647.1104X25
Designation
Hexagon head bolt
Version 1
with seal
Version 2
hygienic design
style
B
Style definition
with shaft
Product type
screw
Main material
stainless steel A4
Surface finish body
polished
B=Thread length
14
D1=Diameter
10
D2=Diameter
11,25
D=Thread
M4
L=Length
25
SW=key width
7
H
2
K
11,1
Kind of fastening
hex head
L1
5,9
Packaging type
packaged individually
R
3
Steel code
1.4404
~ CONFLICT MINERALS 3TG status
no intentional 3TG
~ CP65 substance 2 cancer
nickel (metallic)
~ PFAS free?
yes
~ REACH SVHC-free?
yes
~ RoHS conformity
yes, without exemption
~ TSCA 6(H) conformity
yes

Description

Product description
The Hygienic DESIGN fastening system was specially developed for use in food-processing facilities. Special emphasis has been placed on the cleaning-optimized geometry and a surface finish of Ra ≤ 0.8 µm. Quick and easy product installation due to a pre-mounted sealing washer rounds off the overall package.
Material
Hex head bolt: stainless steel 1.4404.

Sealing washer: EU10/2011 and FDA constyle thermoplastic (POM).
Version
Hex head bolt: Polished or unpolished stainless steel.
Sealing washer: RAL5002 - Ultramarine blue (POM).
Note
The contact face for the sealing ring must ideally be flat and perpendicular to the threaded hole and have a surface finish of Ra ≤ 0.8 µm.
Sealing ring is unsuitable for acidic cleaning (pH < 4) and oxidizing agents.
Temperature range
-20 °C to +100 °C (POM).
Advantages
Pre-installed, exchangable seal washer.
Foodstuff constyle material.
Cleaning optimized geometry.
Attention
The suitability of the Hygienic DESIGN fasters for the respective application must be checked by the user. Depending on the loads and external influences (temperature, cleaning media, product media), the sealing washer should be inspected regularly and replaced if necessary.
Scope of delivery
Hex head bolt incl. seal washer.
On request
Special versions.
Threaded version
M4 - M16.
Drawing reference
1) Hex head bolt
2) Sealing washer
Accessory
Sealing washer K1649.
Stainless steel hex nut with sealing washer K1648.
Sockets with plastic inserts K1361.
Ring/open-end spanner with protective caps K1362.
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