--- title: "M1800 Circlips/Cresent Ring/Rataining Ring" description: "M1800 Circlips/Cresent Ring/Rataining Ring — Internal Retaining Rings & Circlips. MOQ 5,000 pieces, US$0.096 – 0.12." url: https://engineeringhardware.com/product/m1800-circlips-cresent-ring-rataining-ring/ source: Engineering Hardware & Fasteners --- # M1800 Circlips/Cresent Ring/Rataining Ring [![M1800 Circlips/Cresent Ring/Rataining Ring](https://img.engineeringhardware.com/M1800-Circlips-Cresent-Ring-Rataining-Ring.webp)](https://img.engineeringhardware.com/M1800-Circlips-Cresent-Ring-Rataining-Ring.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Retaining Rings & Locking Hardware › Internal Retaining Rings & Circlips](https://engineeringhardware.com/fastener-products/retaining-rings-locking-hardware/internal-retaining-rings-circlips/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/m1800-circlips-cresent-ring-rataining-ring.md) Model no. **M1800/H** | **US$0.12**5,000–9,999 pieces | **US$0.096**10,000+ 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. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20M1800%20Circlips%2FCresent%20Ring%2FRataining%20Ring%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fm1800-circlips-cresent-ring-rataining-ring%2F) 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](https://engineeringhardware.com/fastener-products/retaining-rings-locking-hardware/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/](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 [![Production floor](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor-1024x683.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor.webp) Production floor [![Inspection bench](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench.webp) Inspection bench [![Sorting & packing](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing.webp) Sorting & packing [![Parts warehouse](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse.webp) Parts warehouse [![Sample review](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review.webp) Sample review [![Sales office](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office.webp) Sales office [More about us →](https://engineeringhardware.com/about/) · [Request a sample or custom quote →](https://engineeringhardware.com/contact/) ## Request a quote for this product ## Related products [All Internal Retaining Rings & Circlips →](https://engineeringhardware.com/fastener-products/retaining-rings-locking-hardware/internal-retaining-rings-circlips/) [![Stainless Steel E Circlip/ Snap Ring (DIN6799 / D1500) /E Circlip](https://img.engineeringhardware.com/Stainless-Steel-E-Circlip-Snap-Ring-DIN6799-D1500-E-Circlip.webp)](https://engineeringhardware.com/product/stainless-steel-e-circlip-snap-ring-din6799-d1500-e-circlip/) Internal Retaining Rings & Circlips ### [Stainless Steel E Circlip/ Snap Ring (DIN6799 / D1500) /E Circlip](https://engineeringhardware.com/product/stainless-steel-e-circlip-snap-ring-din6799-d1500-e-circlip/) DIN, ANSI, BS, Uni · Stainless Steel **US$0.096 – 0.12**MOQ 5,000 pieces [![18 Sizes Circlip Retaining Snap Rings for Grooved Shafts](https://img.engineeringhardware.com/18-Sizes-Circlip-Retaining-Snap-Rings-for-Grooved-Shafts.webp)](https://engineeringhardware.com/product/18-sizes-circlip-retaining-snap-rings-for-grooved-shafts/) Internal Retaining Rings & Circlips ### [18 Sizes Circlip Retaining Snap Rings for Grooved Shafts](https://engineeringhardware.com/product/18-sizes-circlip-retaining-snap-rings-for-grooved-shafts/) GB/T20057-2006 · Steel **US$0.024 – 0.36**MOQ 1,000 pieces [![DIN984 65mn Steel Retaining Rings with Lugs (Internal Circlips) for Use in Bores](https://img.engineeringhardware.com/DIN984-65mn-Steel-Retaining-Rings-with-Lugs-Internal-Circlips-for-Use-in-Bores.webp)](https://engineeringhardware.com/product/din984-65mn-steel-retaining-rings-with-lugs-internal-circlips-for-use-in-bores/) Internal Retaining Rings & Circlips ### [DIN984 65mn Steel Retaining Rings with Lugs (Internal Circlips) for Use in Bores](https://engineeringhardware.com/product/din984-65mn-steel-retaining-rings-with-lugs-internal-circlips-for-use-in-bores/) OEM · Accepted **US$0.096**MOQ 100 pieces [![Chainsaw Part Circlip 15 X 1mm for Ms250 Ms230 Ms210](https://img.engineeringhardware.com/Chainsaw-Part-Circlip-15-X-1mm-for-Ms250-Ms230-Ms210.webp)](https://engineeringhardware.com/product/chainsaw-part-circlip-15-x-1mm-for-ms250-ms230-ms210/) Internal Retaining Rings & Circlips ### [Chainsaw Part Circlip 15 X 1mm for Ms250 Ms230 Ms210](https://engineeringhardware.com/product/chainsaw-part-circlip-15-x-1mm-for-ms250-ms230-ms210/) Circlip · Other **US$0.23 – 0.35**MOQ 99 pieces [![Stainless Steel Circlip / Retaining Ring / E Ring (DIN471 / DIN472 / DIN6799)](https://img.engineeringhardware.com/Stainless-Steel-Circlip-Retaining-Ring-E-Ring-DIN471-DIN472-DIN6799-2.webp)](https://engineeringhardware.com/product/stainless-steel-circlip-retaining-ring-e-ring-din471-din472-din6799/) Internal Retaining Rings & Circlips ### [Stainless Steel Circlip / Retaining Ring / E Ring (DIN471 / DIN472 / DIN6799)](https://engineeringhardware.com/product/stainless-steel-circlip-retaining-ring-e-ring-din471-din472-din6799/) Stainless Steel · Different Sizes Are Available **US$0.06**MOQ 1,000 pieces [![China Manufacture DIN984 Metal Rings Black Spring Retaining Rings with Lugs for Bores Gear Tooth Circlip Internal Circlips](https://img.engineeringhardware.com/China-Manufacture-DIN984-Metal-Rings-Black-Spring-Retaining-Rings-with-Lugs-for-Bores-Gear-Tooth-Circlip-Internal-Circlips.webp)](https://engineeringhardware.com/product/china-manufacture-din984-metal-rings-black-spring-retaining-rings-with-lugs-for/) Internal Retaining Rings & Circlips ### [China Manufacture DIN984 Metal Rings Black Spring Retaining Rings with Lugs for Bores Gear Tooth Circlip Internal Circlips](https://engineeringhardware.com/product/china-manufacture-din984-metal-rings-black-spring-retaining-rings-with-lugs-for/) DIN984 · C67s 65mn **US$0.012 – 0.024**MOQ 1,000 pieces [![M5 Stainless Steel E Circlip E Rings](https://img.engineeringhardware.com/M5-Stainless-Steel-E-Circlip-E-Rings.webp)](https://engineeringhardware.com/product/m5-stainless-steel-e-circlip-e-rings/) Internal Retaining Rings & Circlips ### [M5 Stainless Steel E Circlip E Rings](https://engineeringhardware.com/product/m5-stainless-steel-e-circlip-e-rings/) Stainless Steel · Circlip **US$6.00 – 12.00**MOQ 1 box [![Yamarine Outboard Circlip 93430-04m03 Fit for YAMAHA 9.9/15fmh Outboard Engine](https://img.engineeringhardware.com/Yamarine-Outboard-Circlip-93430-04m03-Fit-for-YAMAHA-9-9-15fmh-Outboard-Engine.webp)](https://engineeringhardware.com/product/yamarine-outboard-circlip-93430-04m03-fit-for-yamaha-9-9-15fmh-outboard-engine/) Internal Retaining Rings & Circlips ### [Yamarine Outboard Circlip 93430-04m03 Fit for YAMAHA 9.9/15fmh Outboard Engine](https://engineeringhardware.com/product/yamarine-outboard-circlip-93430-04m03-fit-for-yamaha-9-9-15fmh-outboard-engine/) ISO · Steel **US$0.12**MOQ 1 piece **US$0.096 – 0.12**MOQ 5,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20M1800%20Circlips%2FCresent%20Ring%2FRataining%20Ring%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fm1800-circlips-cresent-ring-rataining-ring%2F)