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Hexagon Slotted Castle Nuts DIN 935 1 1987
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Concrete screws include carbon steel and stainless steel,When you need a better way to fix to concrete in lighter duty situations. Don’t risk cracking of smaller or narrower substrates with expanding anchors; concrete screws are designed to give you more flexibility and are usable multiple times for removing them and re-embedding them.
DIN 6797 J are internal toothed washers that can guarantee discreet locking, in particular on non-flat bearing surfaces.
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