Flexible Shipping
Machrio
AccountCart is empty
304 Stainless Steel External Tooth Lock Washer, 0.394" Bore, Pkg Qty 500

Hover to zoom

Industrial · SKU: FP2047

304 Stainless Steel External Tooth Lock Washer, 0.394" Bore, Pkg Qty 500

This 304 stainless steel external tooth lock washer is designed for secure, vibration-resistant fastening in demanding environments. It features a 0.

Contact for Availability
$19.99
$0.04/each(500 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$19.99
11 - 50-5%$18.99
51+-10%$17.99
Request Quote

Free Shipping $200+

On qualifying orders

Fast DDP Delivery

Door-to-door service

24/7 Support

Expert assistance

Quick Answer

How Buyers Should Evaluate 304 Stainless Steel External Tooth Lock Washer, 0.394" Bore, Pkg Qty 500

This 304 stainless steel external tooth lock washer is designed for secure, vibration-resistant fastening in demanding environments. It features a 0. 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 $19.99.
  • 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 Diameter0.394 in
Thickness0.028 in
Product Details

Full Description

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

Overview

This 304 stainless steel external tooth lock washer is engineered to provide a reliable, vibration-resistant locking solution for critical bolted connections. It is designed to prevent fastener loosening under dynamic loads, shock, and vibration, ensuring the long-term integrity of assemblies in demanding industrial and commercial environments. The washer's external teeth are precision-formed to bite securely into both the nut and the bearing surface, creating a powerful mechanical lock that resists rotational movement.

Key Features

Constructed from corrosion-resistant 304 stainless steel for durability in harsh conditions. Manufactured to A2-70 material grade standards for consistent strength and performance. External tooth design provides superior locking action by engaging both mating surfaces. Plain finish offers a clean, non-reflective appearance suitable for a wide range of applications. Bulk packaging supports high-volume assembly, maintenance, and repair operations.

Specifications

System of Measurement: Metric Material Grade/Class: A2-70

Material

Stainless Steel 304 Thread Size: Not Applicable Finish: Plain Shaft/Bore Diameter: 0.394 inches Thickness: 0.028 inches Package Quantity: 500 washers

Applications

General manufacturing and machinery assembly. Preventive maintenance programs for plant equipment. Electrical panel and enclosure construction. Pump, motor, and compressor installations. Conveyor system assembly and repair. Outdoor infrastructure and marine applications where corrosion resistance is required.

Frequently Asked Questions

What are the key specifications and corrosion resistance of these washers?
These are 304 stainless steel (A2-70 grade) external tooth lock washers with a 0.394 inch bore and a thickness of 0.028 inches. The 304 stainless steel material provides excellent corrosion resistance for general industrial and marine environments, and the A2-70 grade indicates a minimum tensile strength of 70,000 PSI.
What are the typical applications for this specific lock washer?
These washers are designed for use on 3/8" diameter bolts or studs (0.375", closest Imperial equivalent to the 10mm/0.394" bore) to prevent nuts and components from loosening under vibration. Common applications include machinery assembly, automotive components, electrical enclosures, and other equipment where a secure, corrosion-resistant locking fastener is required.
What is the packaging and minimum order quantity?
The washers are packaged in bulk quantities of 500 pieces per bag. This is the standard pack size, and orders are fulfilled as single units of this 500-piece package.