Quantity discount

RS PRO Fiber washers red M4

M4
Save CHF3.30
Ratings
BrandMore from RS PRO
Delivered between 2.1.2026 and 7.1.2026
More than 10 pieces in stock at supplier
Free shipping starting at 50.–

thread type6

Product details

For screws / bolt size = M4
Outer diameter = 9mm
Inner diameter = 4.3mm
Thickness = 0.8mm
Material = Vulcanized fiber
Finish = Smooth

Fiber washers - metric and imperial BA. Hard vulcanized sealing washers with red fiber appearance For ISO fasteners in metric and imperial BA Resistant to corrosion by seawater, petroleum derivatives, oils, organic solvents, sunlight and abrasion Fiber washers are ideal for electrical insulation, automotive applications, glazing, lighting, boats and ships, and pipes and wires.

Key specifications

accessory type
Washer
Internal diameter
4.30 mm
Outside diameter
9 mm
Item number
9723821

General information

Manufacturer
RS PRO
Category
Nuts + Washers
Manufacturer no.
526366
Release date
24.9.2018

Material

Material
Vulcanized fiber
material thickness
0.80 mm

Screws Accessories Features

accessory type
Washer
thread type
M4

Sustainability

Manufacturer commitment
SBTi

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Internal diameter
4.30 mm
Thickness
0.80 mm
Outside diameter
9 mm

Package dimensions

Length
11.40 cm
Width
10.20 cm
Height
1.30 cm
Weight
13 g

30-day right of return
No warranty

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Nuts + Washers» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • RS PRO
    Not enough data
  • Adam Hall
    Not enough data
  • Amf
    Not enough data
  • BestaPac
    Not enough data
  • BGS
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • RS PRO
    Not enough data
  • Adam Hall
    Not enough data
  • Amf
    Not enough data
  • BestaPac
    Not enough data
  • BGS
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Return rate

How often is a product of this brand in the «Nuts + Washers» category returned?

Source: Digitec Galaxus
  • 8.FTM
    0.6 %
  • 9.Amf
    0.7 %
  • 10.Werkstarck
    0.8 %
  • 11.BestaPac
    1.6 %
  • 12.RS PRO
    3.2 %
Source: Digitec Galaxus