Flange Bolts
Hex bolts with an integral flange that spreads clamp load without a separate washer.
Manufactured by Uvi Tech Fit in Kundli, Sonipat, India.
Or message us on WhatsAppDIN 6921, ISO 4162
Overview
Hex bolts with a built-in flange that does the job of a washer. Plain flanges protect painted surfaces; serrated flanges bite in and resist loosening.
Also known as: hex flange bolt, flange head bolt, hexagon flange screw.
Related parts: Hex Head Bolts, Hex Flange Phillips, Special Studs & Custom Pivots
Used in
- Automotive components
- Machinery assemblies
- Industrial equipment
- Fabrication
- Solar mounting systems
Dimensions
Hex flange bolt (DIN 6921)
| Size | Pitch | Across flats s | Flange dia. dc (max) |
|---|---|---|---|
| M5 | 0.8 | 8 | 11.8 |
| M6 | 1.0 | 10 | 14.2 |
| M8 | 1.25 | 13 | 17.9 |
ISO 4162 uses smaller hex sizes than DIN 6921 at some diameters, so name the standard you use. Reference values from the standard, in mm. Parts are made to your drawing or the standard you name; lengths up to 100 mm.
Parts are checked at each stage with vernier calipers, micrometers and visual inspection. Material and test reports can be arranged on request.
Request a Quote
Give size, length, material, finish and quantity. For a custom part, attach a drawing or a photo of the sample.
Questions
Plain or serrated flange?
Serrated flanges lock into the surface and resist loosening without a lock washer; plain flanges are used on painted or soft surfaces you don't want marked.
DIN 6921 or ISO 4162?
They differ in hex size for some diameters, which changes the socket you need. Tell us which one your drawings call for.
Where are flange bolts used?
Automotive, solar mounting rails, HVAC brackets and machinery: anywhere a washer would otherwise be added.