Steel / Stainless Steel, Flat Type
Catalogue
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d1
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l
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d2
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k
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DIN 653-M3-6
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M 3
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6
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12
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2.5
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1
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DIN 653-M3-8
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M 3
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8
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12
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2.5
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2
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DIN 653-M3-10
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M 3
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10
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12
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2.5
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2
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DIN 653-M3-16
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M 3
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16
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12
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2.5
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3
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DIN 653-M3-20
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M 3
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20
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12
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2.5
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3
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DIN 653-M4-8
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M 4
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8
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16
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3.5
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4
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DIN 653-M4-10
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M 4
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10
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16
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3.5
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5
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DIN 653-M4-12
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M 4
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12
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16
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3.5
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6
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DIN 653-M4-16
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M 4
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16
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16
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3.5
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7
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DIN 653-M4-20
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M 4
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20
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16
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3.5
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8
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DIN 653-M4-25
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M 4
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25
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16
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3.5
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9
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DIN 653-M5-10
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M 5
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10
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20
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4
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10
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DIN 653-M5-12
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M 5
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12
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20
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4
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11
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DIN 653-M5-16
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M 5
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16
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20
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4
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12
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DIN 653-M5-20
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M 5
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20
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20
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4
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13
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DIN 653-M5-25
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M 5
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25
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20
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4
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14
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DIN 653-M5-30
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M 5
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30
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20
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4
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15
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DIN 653-M6-12
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M 6
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12
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24
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5
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16
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DIN 653-M6-16
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M 6
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16
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24
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5
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17
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DIN 653-M6-20
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M 6
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20
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24
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5
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19
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DIN 653-M6-25
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M 6
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25
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24
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5
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20
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DIN 653-M6-30
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M 6
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30
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24
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5
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22
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DIN 653-M6-40
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M 6
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40
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24
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5
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23
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DIN 653-M8-16
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M 8
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16
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30
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6
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33
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DIN 653-M8-20
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M 8
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20
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30
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6
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35
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DIN 653-M8-25
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M 8
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25
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30
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6
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38
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DIN 653-M8-30
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M 8
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30
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30
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6
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40
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DIN 653-M8-35
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M 8
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35
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30
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6
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43
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DIN 653-M8-40
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M 8
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40
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30
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6
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47
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DIN 653-M10-20
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M 10
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20
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36
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8
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72
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DIN 653-M10-25
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M 10
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25
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36
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8
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74
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DIN 653-M10-30
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M 10
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30
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36
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8
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76
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DIN 653-M10-35
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M 10
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35
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36
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8
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75
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DIN 653-M10-40
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M 10
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40
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36
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8
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80
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Knurled screws DIN 653 are turned entirely from a single piece. The thread of the screw generally extends up to the head and ends in a runout without recess as per the DIN designation A.
They are suitable for universal use and can be quickly tightened and loosened without tools.