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External Tooth Lock Washer, 0.551" Bore, 304 Stainless Steel, A2-70, Pkg Qty 500

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Industrial · SKU: FP2059

External Tooth Lock Washer, 0.551" Bore, 304 Stainless Steel, A2-70, Pkg Qty 500

This external tooth lock washer is designed for secure, vibration-resistant fastening in demanding B2B applications.

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$39.99
$0.08/each(500 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$39.99
11 - 50-5%$37.99
51+-10%$35.99
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Quick Answer

How Buyers Should Evaluate External Tooth Lock Washer, 0.551" Bore, 304 Stainless Steel, A2-70, Pkg Qty 500

This external tooth lock washer is designed for secure, vibration-resistant fastening in demanding B2B applications. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • System of Measurement: Metric
  • Material Grade/Class: A2-70
  • Material: Stainless Steel 304

Purchase Details

  • Online price starts at $39.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 500 / Each.
  • Lead time: 2-3 weeks.

Use RFQ When

  • Use RFQ when you need bulk pricing, alternate pack sizes, or multi-SKU comparison.
  • Request support when fit, material, or substitute selection needs confirmation before order.
  • Escalate to sourcing when timeline, freight, or stocking strategy matters more than one-off checkout speed.

Technical Specifications

System of MeasurementMetric
Material Grade/ClassA2-70
MaterialStainless Steel 304
Thread SizeNot Applicable
FinishPlain
Shaft/Bore Diameter0.551 in
Thickness0.02 in
Product Details

Full Description

Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.

Overview

This external tooth lock washer is engineered to provide superior vibration resistance and locking security in critical fastening assemblies. Designed for B2B and industrial applications, it prevents nuts, bolts, and screws from loosening under dynamic loads, shock, and vibration. The washer's external teeth are precision-formed to bite into both the fastener head and the bearing surface, creating a firm, non-slip grip that maintains clamp load and joint integrity over time.

Key Features

Constructed from durable and corrosion-resistant 304 stainless steel Meets A2-70 material class for high strength and reliability External tooth design provides positive locking action Plain finish for compatibility with a wide range of applications Bulk packaging offers high-volume value for production and MRO use

Specifications

System of Measurement: Metric

Material

Stainless Steel 304 Material Grade/Class: A2-70 Finish: Plain Shaft/Bore Diameter: 0.551 inches Thickness: 0.02 inches Package Quantity: 500 pieces

Applications

General manufacturing assembly lines Heavy equipment and machinery maintenance Electrical panel and enclosure construction Marine and other corrosive environment fastening Transportation industry assemblies requiring vibration resistance Plumbing and HVAC system installations

Frequently Asked Questions

What are the key specifications for this external tooth lock washer?
This washer is made from corrosion-resistant 304 Stainless Steel (A2-70 grade) with a plain finish. It has a bore diameter of 0.551 inches, a thickness of 0.02 inches, and is designed for use with metric-sized fasteners.
What are the typical applications for this type of lock washer?
These washers are used to prevent nuts and bolts from loosening under vibration in machinery, automotive assemblies, and industrial equipment. The external teeth bite into the bearing surface and fastener head to provide a secure, non-slip lock.
How is this product packaged and what is the minimum order quantity?
The washers are packaged in bulk quantities of 500 pieces per bag. This industrial pack size is designed for production or maintenance environments where a significant volume of fasteners is required.