M10 x 19.8mm Captive Washers - Black Carbon Steel


Key Features

  • M10 Metric Thread Size (10mm)
  • For Use With Thread Size: M10 (10mm)
  • External Diameter (D): 19.8mm
  • Thickness (T): 0.4mm
  • Material: Austempered Carbon Steel
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M10 x 19.8mm Captive Washers - Black Carbon Steel Technical Specification

M10 x 19.8mm Captive Washers - Black Carbon Steel Drawing
External Diameter (D)19.8mm
FinishPhosphate and Oil
For Use With Thread SizeM10 (10mm)
Holding Strength (Min)668N
MaterialAustempered Carbon Steel
Metric or Imperial?Metric
Required Installation Force (Max)156N
Thickness (T)0.4mm
Uncompressed Height (H)2.4mm

Product Certifications

Certificate of Conformity Included
Certificate of Conformity Included
RoHS Certified
RoHS Certified
REACH Certified
REACH Certified
Quality Approved

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M10 x 19.8mm Captive Washers - Black Carbon Steel Description

The M10 x 19.8mm Captive Washers - Black Carbon Steel has the following features:

  • 0.4mm Thickness (T)
  • 2.4mm Uncompressed Height (H)
  • Austempered Carbon Steel Material
  • Phosphate and Oil Finish
  • Metric Metric or Imperial?
  • 19.8mm External Diameter (D)
  • 668N Holding Strength (Min)
  • 156N Required Installation Force (Max)
  • M10 (10mm) For Use With Thread Size

Discover more about the Washers For Captive Screws range

Captive Washers are used in conjunction with Accu's Captive Screws to provide a permanent hold within an assembly. The washer is compressed during assembly to lock over the captive shank of the Captive Screw, preventing the screw from coming loose. The combination of Captive Screw and Captive Washer forms a cost effective locking solution for safety applications.

Captive Washers flatten during installation. This is intended to be a permanent fastening, as a Captive Washer is not suitable for re-use. For a lightweight and reusable variant of this component, please see Accu's Retaining Nylon Washers range.

EU machine Directive 2006/42/EC.

Captive Washers can be used to create captive fasteners are required to be fitted for equipment such as safety guards for compliance with EU machine Directive 2006/42/EC.


All Captive Washers are manufactured from austempered carbon steel, with a bright zinc plate finish to provide a barrier against corrosion. If alternative materials are required, please contact us.

Metric Captive Washers

Captive Washers are available as standard in metric sizes ranging from M4 up to M10. A wide range of additional sizes can be custom manufactured on request.

Shipping Information

Shipping Destinations:Worldwide.
View delivery information.
Weight: 0.00kg.

Component History

Product First Available:Thursday, September 20, 2018
Stock Last Updated:08:47 am
Saturday, November 27, 2021
Specification Last Updated:Saturday, November 27, 2021

APC / Barcodes

APC (Accu Product Code):HCW-M10-S-BL
EAN13 (International Article No.):5057195327424
ASIN (Amazon Stock Identification No.):ASIN not defined.