Hex bolts

A flange hex bolt is a bolt that has a washer-like flange cast into the hexagonal head of the bolt. Designed to be used without the aid of a flat or locking-style washer, the flange hex bolt is manufactured to properly displace the torque and clamping force of the bolt over a wider area than that of a typical hex head bolt.

Available Materials: Steel, Corten Steel, Stainless steel

International Standards:

hex Bolts
  • DIN 931
  • DIN 933
  • DIN 558
  • DIN 601
  • DIN 960
  • DIN 961
  • ISO 4014
  • ISO 4017
  • JIS B 1180
  • ANSI B 18.2.1

Mechanical Properties:

Many metals are used in the manufacture of a flange hex bolt, from common mild steel to stainless steel and titanium, and each type of bolt has a specific use.

  • Metric Grades : 4.6, 8.8, 10.9, 12.9
  • Inch Grades : 2, 5, 8

Standard Sizes:

Used a great deal in the automobile industry, this type of bolt allows assembly line workers to install the fasteners much faster than a comparable bolt and washer.

Draws
Item Size Item Size
M06 6 ~ 150 mm  1/4 " 1/2 ~ 6 " 
M08 10 ~ 200 mm  5/16 " 1/2 ~ 6 " 
M10 12 ~ 300 mm  3/8 " 1/2 ~ 8 " 
M12 16 ~ 300 mm  7/16 " 3/4 ~ 8 " 
M14 20 ~ 300 mm  1/2 " 3/4 ~ 8 " 
M16 25 ~ 300 mm  9/16 " 1 ~ 8 " 
M18 25 ~ 300 mm  5/8 " 1 ~ 12 " 
M20 25 ~ 300 mm  3/4 " 1 ~ 12 " 
M22 40 ~ 300 mm  7/8 " 1 1/2 ~ 12 " 
M24 50 ~ 250 mm  1 " 2 ~ 10 " 

For most applications on the automobile, mild steel is the metal of choice for the flanged bolt. This type of bolt allows for sufficient torque and will endure several tightening cycles that might otherwise fatigue other types of fasteners. Stainless steel fasteners are most commonly used in food-quality machinery and pipelines, as well as caustic areas that might serve to corrode a mild steel fastener in a minimum amount of time.



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