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Retaining Rings & Locking Hardware › Internal Retaining Rings & Circlips

M1800 Circlips/Cresent Ring/Rataining Ring

Updated 2026-11-04 · Markdown version

Model no. M1800/H

US$0.125,000–9,999 pieces

US$0.09610,000+ pieces

MOQ 5,000 pieces · Final price confirmed in your quote

Material: Carbon Steel, Stainless Steel
Surface Finishing: Black Phosphating, Black Oxide, Zinc Plating
Standard: DIN, ANSI, BS, Uni
Customized: Customized
Model Number: M1800
Size: 3mm~55mm
Color: Black/Sliver
Surface Finish: Black Phosphating, Black Oxide, Zinc Plating.

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Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Material	Carbon Steel, Stainless Steel
Usage	Furniture, Automobile, Industrial
Surface Finishing	Black Phosphating, Black Oxide, Zinc Plating
Model NO.	M1800/H
Certification	ISO, GS, RoHS, CE, Ts
Standard	DIN, ANSI, BS, Uni
Customized	Customized
Application	Circlip
Model Number	M1800
Product Name	Crescent Ring / Retaining Ring
Size	3mm~55mm
Package	Carton+Pallet
Delivery Time	15-20days
Industry	Fastener
Fasterner	Sea Song
Measurement	Metric, Imperial (Inch)
Supply Ability	1000 Tons Per Month
MOQ	5000PCS
Sample	Available
Certificate	ISO 9001 2015/ISO 14001 2015
Color	Black/Sliver
Located	Shanghai
Condition	New
Transport Package	Inner Box + Outer Carton + Wooden Case
Specification	DIN, ANSI, BS, UNI
Origin	China
HS Code	7318290000
Production Capacity	5 Millions
Surface Finish	Black Phosphating, Black Oxide, Zinc Plating.
Available Raw Material	carbon steel,
Surface finishing	Galvanized (Various of color), dacromet, zinc plated ,nickle Alloy plated, polishing
Heat Treatment	Carburization or tempering or high-frequency quenching
Packing	BULK +canton+pallet, Small Boxes+carton+pallet, or customer request
Category	Internal Retaining Rings & Circlips

Technical parameters

Available Raw Material :	carbon steel,
alloy steel
stainless steel
brass,bronze,
Standard:	DIN, ANSI,BS ISO,UNI,Non-standard
Surface finishing :	Galvanized (Various of color), dacromet, zinc plated ,nickle Alloy plated, polishing
Heat Treatment:	Carburization or tempering or high-frequency quenching
Packing :	BULK +canton+pallet, Small Boxes+carton+pallet, or customer request

Description

M1800 Circlips/Cresent Ring/Rataining Ring is part of our internal retaining rings & circlips range (Retaining Rings & Locking Hardware).

Key details

Standard: DIN, ANSI, BS, Uni
Material: Carbon Steel, Stainless Steel
Size: 3mm~55mm
Application: Circlip
Certification: ISO, GS, RoHS, CE, Ts
Usage: Furniture, Automobile, Industrial
Surface Finishing: Black Phosphating, Black Oxide, Zinc Plating
Model Number: M1800

Available configurations include material, surface finishing, standard, customized and model number. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 5,000 pieces at US$0.096 – 0.12 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for M1800 Circlips/Cresent Ring/Rataining Ring?

The listed minimum order is 5,000 pieces, at US$0.096 – 0.12 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

How does the price change with quantity?

Volume pricing: US$0.12 for 5,000–9,999 pieces; US$0.096 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of M1800 Circlips/Cresent Ring/Rataining Ring?

Standard: DIN, ANSI, BS, Uni; Material: Carbon Steel, Stainless Steel; Size: 3mm~55mm; Application: Circlip; Certification: ISO, GS, RoHS, CE, Ts; Usage: Furniture, Automobile, Industrial. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, surface finishing, standard, customized and model number. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other internal retaining rings & circlips are available?

The Internal Retaining Rings & Circlips category lists 477 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/retaining-rings-locking-hardware/internal-retaining-rings-circlips/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

Request a quote for this product

US$0.096 – 0.12MOQ 5,000 piecesGet a quote WA