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2 yrsTrading on 1688
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  • ✓Verified supplier2 years trading on 1688
  • ✓Hardware and mechanical parts specialistMain category: Hardware and mechanical parts
Factory-direct supply - specifications and labelling are checked before dispatch.

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304 Stainless Steel Open Retaining Ring, E-type Retaining Ring, Stainless Steel, 304, 15 Options

Price range: $8.99 through $26.97

Retaining Rings supplied in 15 options for machine, pipe and structural work. Stainless Steel construction where it matters.

M1.5 304 Stainless Steel
Inner Diameter of Retaining Ring1.5mmApplicable DiameterΦ1.5mmOuter Diameter of Retaining Ring4mmThickness of Retaining Ring0.4mmOpening Width1.2mm
M2 304 Stainless Steel
Inner Diameter of Retaining Ring2mmApplicable DiameterΦ2mmOuter Diameter of Retaining Ring5mmThickness of Retaining Ring0.4mmOpening Width1.7mm
M2.5 304 Stainless Steel
Inner Diameter of Retaining Ring2.5mmApplicable DiameterΦ2.5mmOuter Diameter of Retaining Ring6mmThickness of Retaining Ring0.4mmOpening Width2.2mm
M3 304 Stainless Steel
Inner Diameter of Retaining Ring3mmApplicable DiameterΦ3mmOuter Diameter of Retaining Ring7mmThickness of Retaining Ring0.6mmOpening Width2.5mm
M3.5 304 Stainless Steel
Inner Diameter of Retaining Ring3.5mmApplicable DiameterΦ3.5mmOuter Diameter of Retaining Ring8mmThickness of Retaining Ring0.6mmOpening Width3mm
M4 304 Stainless Steel
Inner Diameter of Retaining Ring4mmApplicable DiameterΦ4mmOuter Diameter of Retaining Ring9mmThickness of Retaining Ring0.8mmOpening Width3.5mm
M5 304 Stainless Steel
Inner Diameter of Retaining Ring5mmApplicable DiameterΦ5mmOuter Diameter of Retaining Ring10mmThickness of Retaining Ring0.8mmOpening Width4.5mm
$8.99·In stock
$8.99·In stock
$8.99·In stock
$8.99·In stock
$17.98·In stock
$17.98·In stock
$17.98·In stock
Select the models you need$0.00

Shipping & Delivery

  • mcp-delivery-car Standard courier delivery

Tracked door-to-door delivery from our Shenzhen warehouse.

6-25 business days, depending on destination

From $7.30 · Free shipping from $99 (by order weight)

Shipping rates and delivery times

  • Mia Hardware Express courier delivery

DHL, FedEx or UPS will deliver to the specified address.

2-8 business days, depending on destination

From $13.90

  • mcp-warranty 12-month warranty
  • mcp-return 30-day returns

Product Information

Product Attributes

TypeRetaining Rings
MaterialStainless Steel
Options15
Sizes304
CustomisationOEM and ODM available

Packaging Information

Unit weight and carton dimensions for every model in this listing.

ModelWeight (lb)
M20 304 304 Stainless Steel Open Retaining Ring1.817
M15 304 304 Stainless Steel Open Retaining Ring1.896
M12 304 304 Stainless Steel Open Retaining Ring1.732
M10 304 304 Stainless Steel Open Retaining Ring1.736
M9 304 304 Stainless Steel Open Retaining Ring1.842
M8 304 304 Stainless Steel Open Retaining Ring2.007
M7 304 304 Stainless Steel Open Retaining Ring1.777
M6 304 304 Stainless Steel Open Retaining Ring1.779
M5 304 304 Stainless Steel Open Retaining Ring1.425
M4 304 304 Stainless Steel Open Retaining Ring1.555
M3.5 304 304 Stainless Steel Open Retaining Ring1.493
M3 304 304 Stainless Steel Open Retaining Ring1.133
M2.5 304 304 Stainless Steel Open Retaining Ring1.135
M2 304 304 Stainless Steel Open Retaining Ring1.160
M1.5 304 304 Stainless Steel Open Retaining Ring1.093

Figures are measured per single unit. Carton quantities and mixed pallets are available on request.

Retaining Rings supplied for joining, sealing, transmitting and supporting machine and structure work. The range covers 15 options, built in Stainless Steel, and each option is priced separately so the cost can be matched to the job rather than averaged across the range. Made by a verified 1688 maker.

Retaining Rings in Stainless Steel supplied in bulk for trade buyers

Retaining Rings: Overview

This listing covers 15 options of retaining rings, and every option is held in stock so a single unit and a repeat order ship from the same batch.

The working parts are made in Stainless Steel, which is what decides how the item behaves in service rather than how it looks on the shelf.

Buying direct from the maker keeps the price at trade level and keeps the door open for bulk cartons and OEM branding on the same item.

Key Features at a Glance

  • 15 options – sizes and grades to suit different duties, all priced separately.
  • Stainless Steel – chosen for the working parts, not just the finish.
  • Sizes 304 – the common sizes are covered without a special order.
  • Trade supply – single units and bulk cartons from the same production batch.
  • OEM and ODM – custom logo and custom packaging available on request.
  • Export packing – boxed for shipment and cartoned for pallet or container loads.

Using Retaining Rings

Matching the item to the job

Start from the joining, sealing, transmitting and supporting machine and structure work you actually do, then choose the size and the grade from the table above. Buying the heaviest option for light work costs money on every order, and buying the lightest option for heavy work costs more in replacement.

Where the range offers several sizes, keep one of each common size in stock rather than several of the one you use most. The second size is what saves a second delivery.

Working practice

Set the item up square and tight before work starts. Most of the damage reported on retaining rings comes from starting a job with something loose or misaligned rather than from the load itself.

Work at the speed and the feed the material allows. Pushing harder to save a minute is what shortens the life of the item and spoils the finish at the same time.

Buying and Care

Buying in quantity

Prices fall with quantity, and mixing sizes in one carton is normally possible. Tell us the sizes and the split you want and we will quote the carton and the pallet.

For repeat business a sample order first is the cheapest way to confirm the grade, the finish and the packing before a container is booked.

Storage and upkeep

Keep fittings dry and lightly oiled in store. Threads and machined faces that are allowed to rust will not torque down to the figure they were made for.

Fit with the correct size of key or spanner and torque to the figure the joint calls for, rather than by feel.

Available Models and Prices

ModelInner Diameter of Retaining Ring (mm)Applicable Diameter (mm)Outer Diameter of Retaining Ring (mm)Thickness of Retaining Ring (mm)Opening Width (mm)Price (USD)
M1.5 304 Stainless Steel1.5Φ1.540.41.2$8.99
M2 304 Stainless Steel2Φ250.41.7$8.99
M2.5 304 Stainless Steel2.5Φ2.560.42.2$8.99
M3 304 Stainless Steel3Φ370.62.5$8.99
M3.5 304 Stainless Steel3.5Φ3.580.63$17.98
M4 304 Stainless Steel4Φ490.83.5$17.98
M5 304 Stainless Steel5Φ5100.84.5$17.98
M6 304 Stainless Steel6Φ61215.4$26.97
M7 304 Stainless Steel7Φ71416.5$26.97
M8 304 Stainless Steel8Φ81617.5$26.97
M9 304 Stainless Steel9Φ91818$26.97
M10 304 Stainless Steel10Φ102019$26.97
M12 304 Stainless Steel12Φ12241.210.5$26.97
M15 304 Stainless Steel15Φ15301.413$26.97
M20 304 Stainless Steel20Φ20401.417.5$26.97

All options are in stock unless marked otherwise. Prices are per unit in USD; carton and pallet prices on request.

Specifications

TypeRetaining Rings
MaterialStainless Steel
Options15
Sizes304
CustomisationOEM and ODM available
MarketExport and domestic trade
Packed weight (base unit) lb (0 kg)
Country/region of originChina
Model options15 configurations available

Packaging Information

ModelWeight (lb)
Unit

Units ship boxed and are cartoned for pallet or container loads. Mixed sizes in one carton are available on request.

Where It Is Used

Machine building and repair, pipework and process plant, structural and civil work, vehicle and agricultural equipment, and general industrial maintenance.

Choosing Retaining Rings

  1. Match the thread, the diameter and the pressure or load rating to the drawing first. Material and finish then decide how long the part lasts in the environment it works in.
  2. Check the size and the quantity against the job before ordering, and ask for a sample where the grade is not obvious from the photograph.
  3. Allow for spares on the sizes you use daily. A second unit in the van or the store is cheaper than a lost day.

Care and Maintenance

Keep fittings dry and lightly oiled in store. Threads and machined faces that are allowed to rust will not torque down to the figure they were made for.

Fit with the correct size of key or spanner and torque to the figure the joint calls for, rather than by feel.

OEM and Bulk Supply

Custom logo, printed packaging and own-brand cartons are available on this item, and the supplier accepts OEM and ODM work.

Tell us the artwork, the carton quantity and the market the goods are going to, and we will quote the tooling and the lead time before the order is placed.

Frequently Asked Questions

Which options are available?

This listing covers 15 options: M1.5 304 Stainless Steel; M2 304 Stainless Steel; M2.5 304 Stainless Steel; M3 304 Stainless Steel; M3.5 304 Stainless Steel; M4 304 Stainless Steel; M5 304 Stainless Steel; M6 304 Stainless Steel; M7 304 Stainless Steel; M8 304 Stainless Steel; M9 304 Stainless Steel; M10 304 Stainless Steel; M12 304 Stainless Steel; M15 304 Stainless Steel; M20 304 Stainless Steel. All are in stock and priced individually.

What is it made of?

Key material: Stainless Steel. Other specifications are listed in the Specifications table above.

What is it used for?

Machine building and repair, pipework and process plant, structural and civil work, vehicle and agricultural equipment, and general industrial maintenance.

Can I buy in bulk or with my own branding?

Yes. Bulk cartons, custom logo and custom packaging are available on request, and the supplier accepts OEM and ODM work.

Summary

Retaining Rings supplied for joining, sealing, transmitting and supporting machine and structure work. Offered in 15 configurations, each priced separately.

Typical use: Machine building and repair, pipework and process plant, structural and civil work, vehicle and agricultural equipment, and general industrial maintenance.

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