FLANGE BOLTS (DIN6921)

FLANGE BOLTS (DIN6921)
Flange bolts have a circular flange under the head that acts like a washer to distribute the load. Flange bolts that are non-serrated are sometimes called frame bolts.

INTERNATIONAL STANDARDS

  • DIN6921
  • IFI-111
  • JIS B1189
  • ASME B18.2.1

APPLICATIONS

  • The flange bolts are usually used in vehicle frames, especially in trucks and anywhere a head bolt is required. They feature a nozzle, thereby speeding the assembly while eliminating the washer. They render four times the bearing area than of a standard hex screw.

MATERIAL

 

Material Available:

  • LOW CARBON STEEL : C1006 - C1045
  • STAINLESS STEEL: SUS304, SUS316, SUS410
  • GRADE 8.8: C1018 - C1022, 10B21
  • MILD STEEL / MID CARBON STEEL: C1035 - C1045
  • ALLOY STEEL: SCM435 - SCM440 (Grade 10.9, Grade 12.9)
  •  │8│GRADE 1008K 1010 
  • 7 8 GRADE 1015(M<16) CH38F (M≥16)
  • 8 10 GRADE CH38F 1039 10B21 10B33
  • 9 12 GRADE 1039 10B21 10B33 10B38 
  • BRASS C2600, C2700, C2680
  • RED BRASS C1100
  • Phosphor Bronze C5191
  • Aluminum Alloy 1050, 5052, 6061
  • Material according to customer’s specifications

SIZE RANGE

STANDARD SIZE RANGE:
  • D = M5 - M12
  • L = 8MM - 50MM

SURFACE TREATMENT

SURFACE TREATMENT TYPES:

  • HEAT TREATMENT
  • ZINC PLATED – WHITE ZINC / YELLOW ZINC / BLACK ZINC
  • Zinc trivalent coatings Cr3+ (Meet RoHS standards)
  • Zinc hexavalent zinc plating Cr6+
  • Nickel plating
  • Black Oxide
  • Hot Dip Galvanised
  • GEOMET® 500
  • DACROMET®
  • Passivation
  • All electro-plating, electro-coating and surface treatment specifications can meet customer's requirements.