S-91080A028 Easy-Install Slotted Washers

Easy-Install Slotted Washers

1291FA00025 Easy-Install Slotted Washers
1291FA00025 Easy-Install Slotted Washers

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

Part No.
Part No. 1291FA00025
Equivalent to mcmaster :
91080A028

Basic Information

System of Measurement Inch
Washer Type Slotted

Dimension Parameters

OD 1.5"
Thickness 0.084-0.104"

Material & Strength Parameters

Material 18-8 Stainless Steel
Hardness Not Rated

Installation & Application Parameters

For Screw Size No. 10, No. 12, No. 14, 1/4"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant

Geometric Parameters

Slot Width 9/32"
Slot Depth 7/8"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
  • Enhanced load distribution from the 1.5" outer diameter, reducing surface pressure and preventing material damage under heavy-duty fastening.
  • Precise slot compatibility featuring a 9/32" slot width and 7/8" depth for secure engagement with standard tools during installation and maintenance.
  • Versatile screw size fit designed for No. 10, 12, 14, and 1/4" screws, streamlining inventory and reducing procurement complexity.
  • Durable mechanical performance with a thickness range of 0.084-0.104", providing reliable, long-lasting service in demanding applications.
  • Full regulatory compliance meeting RoHS 3 and REACH standards, ensuring safety and environmental responsibility in global supply chains.
  • Optimized for inch-system projects, facilitating seamless integration with existing imperial measurement-based designs and specifications.

Professional Applications & Engineering Value

This 1.5" OD slotted washer is engineered from 18-8 stainless steel to address common industrial challenges such as corrosion-induced failure and assembly inefficiency. The slotted design allows for quick alignment and secure placement using standard tools, reducing installation time in high-volume production lines. Its robust construction ensures consistent performance in heavy-duty applications, including machinery assembly, structural frameworks, and outdoor equipment, where exposure to moisture and chemicals is a concern. By providing a reliable, corrosion-resistant interface between fasteners and surfaces, it minimizes maintenance downtime and extends the service life of connected components, making it a cost-effective solution for engineers and procurement specialists seeking durable stainless steel fasteners.

Specification Summary & Compliance

This washer conforms to inch-system dimensional standards with an OD of 1.5", thickness of 0.084-0.104", slot width of 9/32", and slot depth of 7/8". It is compatible with screw sizes No. 10, 12, 14, and 1/4". The product is manufactured from 18-8 stainless steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.

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