S-92908A265 6.4 mm ID x 32 mm OD Finishing Washers

Finishing Washers

1279FA00021 Finishing Washers
1279FA00021 Finishing Washers

Image may differ from product. See technical specification for details.

Part No.
Part No. 1279FA00021
Equivalent to mcmaster :
92908A265

Basic Information

System of Measurement Metric
Washer Type Countersunk

Dimension Parameters

ID 6.4 mm
OD 32 mm
Thickness 3.7-4.3 mm

Material & Strength Parameters

Material Black-Oxide Steel
Hardness Rockwell 15N80

Installation & Application Parameters

For Screw Size M6

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) compliant with exemption 6(a) - Lead as an alloying element in steel
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant

Geometric Parameters

Countersink Angle 90°
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
  • Fast delivery
  • Enjoy discounts on bulk purchases
  • Secure Payment
  • Fast Global Shipping

Key Features & Benefits at a Glance

  • Enhanced corrosion resistance through black-oxide steel construction, extending service life in demanding environments
  • Precise 90° countersink angle ensures flush mounting with M6 screws for streamlined assemblies and reduced snagging
  • Optimized load distribution with 32mm outer diameter, minimizing surface pressure and material deformation
  • Superior mechanical durability from Rockwell 15N80 hardness, maintaining dimensional stability under vibration and stress
  • Regulatory compliance assurance with RoHS 3 and REACH standards, facilitating global supply chain integration
  • Accurate screw alignment via 6.4mm inner diameter, reducing installation time and cross-threading risks
  • Consistent thickness tolerance (3.7-4.3mm) enables uniform clamping force across production batches

Professional Applications & Engineering Value

Engineered for industrial fastening systems, these black-oxide steel countersunk washers address critical challenges in machinery assembly and structural applications. The 90° countersink angle eliminates protrusions in M6 screw installations, preventing interference in automated equipment while the oxide surface treatment provides essential corrosion protection against coolants and environmental exposure. With 32mm OD distributing bearing loads effectively, they mitigate stress concentration in sheet metal assemblies and precision equipment frames. The hardened Rockwell 15N80 material withstands repeated disassembly cycles, making these metric washers ideal for maintenance-heavy environments where durability and dimensional consistency are paramount.

Specification Summary & Compliance

Manufactured to metric dimensional standards with 6.4mm ID for M6 screw compatibility and 3.7-4.3mm thickness range. The black-oxide steel construction meets industrial hardness requirements (Rockwell 15N80) while maintaining full compliance with RoHS 3 (2015/863/EU) under exemption 6(a) and current REACH (EC 1907/2006) regulations regarding SVHC substances. These countersunk washers are produced under quality systems ensuring consistent 90° angle geometry and surface finish specifications for reliable performance in regulated industries.

🔍
Cancel