EN 1665 Flange Bolt with Hex Head
FLOK supplies EN 1665 (DIN 6921) hex flange bolts, property classes 8.8, 10.9, 12.9, M5-M16, length 30-200 mm, zinc-plated.
The EN 1665 hex flange bolt (equivalent to DIN 6921) is made of stainless steel and steel alloys of grades 8.8, 10.9, 12.9. The latter are protected from corrosion by galvanic zinc plating. They are produced with full or partial metric thread of diameter M5-M16, length 30-200 mm. The underside of the flange can be completely smooth or have locking serrations.
Flange bolt versions with serrations are called self-locking: the serrations increase the grip force and contact area with the base material. The flange eliminates the need for a washer, as it protects the seating surface from deformation and increases the bearing area itself. The use of EN 1665 bolts prevents self-loosening of the fastened joint and speeds up assembly.
See also
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EN 14399-8 Hexagon Bolt for HV Connections in Steel Structures
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DIN 609 Fit Bolt with Long Threaded Shank
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DIN 601 Hexagon Head Bolt
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DIN 610 Fitted Tie Bolt
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DIN 561 Reduced Head Bolt with Spigot
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DIN 186 T-head Bolt for Machine Tool Slots
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DIN 604 Furniture Bolt with Countersunk Head and Lug
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DIN 15237 Elevator Bolt with Countersunk Head
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