Flanged Hex Nuts

Flanged hex nuts are fasteners with threaded holes and broad flanges (outer ridges) that also fulfil the function of washers too. These nuts are designed with a hexagonal shape and are constructed with hardened steel and exterior coatings made of zinc.


The flange on the nut distributes pressure evenly over the part that is being secured, which prevents the object from loosening or being damaged during movement and rotation.


What are flanged hex nuts used for?

Flanged hex nuts are typically found in manufacturing assembly lines. They are used as single fastener mechanisms and speed up operations because the need for washers is eliminated. In the automotive industry, these nuts are used in door hinges and seat attachments.

Types of flanged hex nuts

Flanged hex nuts may be smooth or serrated on the inside:

  • Smooth nuts are used in coated or painted surfaces and have anti-corrosion attributes which make them useful for products with coated or painted surfaces.
  • Serrated nuts are uneven on the insides to increase the locking action of the nuts. They are useful for oversized and irregularly shaped openings because they completely cover the bearing surfaces.

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Description Price Thread Size Width Overall Height Flange Diameter Material Stainless Steel Type Finish Colour
RS Stock No. 275-490
BrandRS PRO
TWD424.00
1 Bag of 50
Bag(s)
M10 - 10mm 21.8mm Steel - Bright Zinc Plated -
RS Stock No. 725-9647
BrandRS PRO
TWD473.00
1 Bag of 50
Bag(s)
M5 8mm 5mm 11.8mm Stainless Steel A2 304 Plain -
RS Stock No. 725-9666
BrandRS PRO
TWD594.00
1 Bag of 25
Bag(s)
M10 15mm 10mm 21.8mm Stainless Steel A2 304 Plain -
RS Stock No. 275-535
BrandRS PRO
TWD236.00
1 Bag of 100
Bag(s)
M5 8mm 5mm 11.8mm Steel - Bright Zinc Plated -
RS Stock No. 275-557
BrandRS PRO
TWD460.00
1 Bag of 100
Bag(s)
M8 13mm 8mm 17.9mm Steel - Bright Zinc Plated -
RS Stock No. 275-462
BrandRS PRO
TWD208.00
1 Bag of 100
Bag(s)
M5 - 5mm 11.8mm Steel - Bright Zinc Plated -
RS Stock No. 275-484
BrandRS PRO
TWD263.00
1 Bag of 100
Bag(s)
M8 - 8mm 17.9mm Steel - Bright Zinc Plated -
RS Stock No. 275-579
BrandRS PRO
TWD685.00
1 Bag of 50
Bag(s)
M12 - 12mm 26mm Steel - Bright Zinc Plated -
RS Stock No. 275-563
BrandRS PRO
TWD399.00
1 Bag of 50
Bag(s)
M10 - 10mm 10.8mm Steel - Bright Zinc Plated -
RS Stock No. 725-9650
BrandRS PRO
TWD181.00
1 Bag of 50
Bag(s)
M5 8mm 5mm 11.8mm Stainless Steel A2 304 Plain -
RS Stock No. 725-9656
BrandRS PRO
TWD1,426.00
1 Bag of 25
Bag(s)
M12 18mm 12mm 26mm Stainless Steel A2 304 Plain -
RS Stock No. 725-9669
BrandRS PRO
TWD236.00
1 Bag of 50
Bag(s)
M6 10mm 6mm 14.2mm Stainless Steel A2 304 Plain -
RS Stock No. 725-9644
BrandRS PRO
TWD950.00
1 Bag of 50
Bag(s)
M8 13mm 8mm 17.9mm Stainless Steel A2 304 Plain -
RS Stock No. 725-9662
BrandRS PRO
TWD535.00
1 Bag of 50
Bag(s)
M8 13mm 8mm 17.9mm Stainless Steel A2 304 Plain -
RS Stock No. 522-033
BrandRS PRO
TWD368.00
1 Bag of 50
Bag(s)
6BA 0.193in 0.141in 0.275in Nylon - Plain White
RS Stock No. 275-507
BrandRS PRO
TWD728.00
1 Bag of 50
Bag(s)
M12 - 12mm 26mm Steel - Bright Zinc Plated -
RS Stock No. 275-541
BrandRS PRO
TWD241.00
1 Bag of 100
Bag(s)
M6 10mm 6mm 14.2mm Steel - Bright Zinc Plated -
RS Stock No. 725-9653
BrandRS PRO
TWD1,128.00
1 Bag of 25
Bag(s)
M10 15mm 10mm 21.8mm Stainless Steel A2 304 Plain -
RS Stock No. 275-478
BrandRS PRO
TWD216.00
1 Bag of 100
Bag(s)
M6 - 6mm 14.2mm Steel - Bright Zinc Plated -
RS Stock No. 522-027
BrandRS PRO
TWD338.00
1 Bag of 50
Bag(s)
4BA 0.248in 0.175in 0.33in Nylon - Plain White