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NF E25-129 Standard Dimensions for Cross recessed countersunk flat head screws type H or Z

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Machine screws large round head type 'Poêlier' with reduced load capacity, slotted,  Symbol RL S

This standard specifies the dimensions and characteristics of 'Poêlier' 'type pan head screws, low load capacity, slotted, symbol RL S, grade A, with ISO metric thread, in diameters from M4 to M12 included. Due to their low load carrying capacity, these screws should only be used for applications where a high preload is not required.

Dimensional Drawing and Technical Diagrams

1396_bZ2f0F_nf-e25-129.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source NF E25-129
Publication date: 12-1985
d Thread size
 P
k
n
t
dk
min
max
min
max
min
max
M 4
0.7
2
2.2
1.26
1.51
1
9
10
M 5
0.8
2.5
2.7
1.26
1.51
1.2
11.5
12.5
M 6
1
3
3.3
1.66
1.91
1.5
13.5
15
M 8
1.25
4.1
4.4
2.06
2.31
2
18
20
M 10
1.5
5.2
5.5
2.56
2.81
2.4
23
25
M 12
1.75
6.2
6.6
3.07
3.37
2.8
27.5
30

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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