--- title: "Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers" description: "Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers — Flat & Other Precision Washers. MOQ 1,000 pieces, US$0.18 – 0.30." url: https://engineeringhardware.com/product/square-flat-washer-custom-corrosion-resistant-flat-round-lock-washers/ source: Engineering Hardware & Fasteners --- # Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers [![Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers](https://img.engineeringhardware.com/Square-Flat-Washer-Custom-Corrosion-Resistant-Flat-Round-Lock-Washers.webp)](https://img.engineeringhardware.com/Square-Flat-Washer-Custom-Corrosion-Resistant-Flat-Round-Lock-Washers.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Washers › Flat & Other Precision Washers](https://engineeringhardware.com/fastener-products/washers/flat-other-precision-washers/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/square-flat-washer-custom-corrosion-resistant-flat-round-lock-washers.md) Model no. **12172F 12167F 12168F** US$0.18 – 0.30 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Color:** Silver - **Material:** Iron - **Customized:** Customized - **Finish:** Hot DIP Galvanized - **Package Size:** 10.00cm * 8.00cm * 7.00cm - **Custom Solutions:** Tailored to your needs, we deliver washers of various dimensions and thicknesses. Precision machining guarantees a perfect fit every time. - **Strength and Functionality:** Flat washers ensure even load distribution, while lock washers add security to your connections. Whether for heavy-duty machinery, electrical projects, or fine mechanical assemblies, our washers keep everything stable and secure. - **Reliable DIN Standards:** Each washer meets international DIN specifications for performance, accuracy, and quality. You get components you can trust, built to endure. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Square%20Flat%20Washer%20Custom%20Corrosion-Resistant%20Flat%20Round%20Lock%20Washers%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fsquare-flat-washer-custom-corrosion-resistant-flat-round-lock-washers%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 | Customization | Available | | --- | --- | | Color | Silver | | Material | Iron | | Model NO. | 12172F 12167F 12168F | | Kind | Fasten | | Customized | Customized | | Fixed | Fixed | | Finish | Hot DIP Galvanized | | Condition | New | | Transport Package | Carton+Pallet | | Specification | Customized | | Origin | China | | Production Capacity | 20 Tons Per Month | | Package Size | 10.00cm * 8.00cm * 7.00cm | | Package Gross Weight | 4.000kg | | Corrosion-Resistant Excellence | Protect your assemblies from rust and wear. Our specialized zinc-coated and aluminum washers provide superior resistance in harsh environments. | | Custom Solutions | Tailored to your needs, we deliver washers of various dimensions and thicknesses. Precision machining guarantees a perfect fit every time. | | Strength and Functionality | Flat washers ensure even load distribution, while lock washers add security to your connections. Whether for heavy-duty machinery, electrical projects, or fine mechanical assemblies, our washers keep everything stable and secure. | | Reliable DIN Standards | Each washer meets international DIN specifications for performance, accuracy, and quality. You get components you can trust, built to endure. | | Product Name | Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers | | size | OEM Customized | | Pressing Capacity | 6.3-600Tons | | Processing | Stamping, Punching, Bending, Tapping, Milling, Lathe/Welding, Assembly, Laser cutting | | Surface Treatment | Plating, Galvanization, Anodized, and Powder coating. | | Certification | ISO9001,SGS,CTI,ROHS | | Package | Carton, Wooden Case or as Required | | Country of origin | China | | Category | [Flat & Other Precision Washers](https://engineeringhardware.com/fastener-products/washers/flat-other-precision-washers/) | ## Technical parameters | Product Name: | Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers | | --- | --- | | Material: | Steel, Stainless steel, Aluminum, Brass, Carbon Steel, etc. | | size: | OEM Customized | | Pressing Capacity: | 6.3-600Tons | | Processing: | Stamping, Punching, Bending, Tapping, Milling, Lathe/Welding, Assembly, Laser cutting | | Surface Treatment: | Plating, Galvanization, Anodized, and Powder coating. | | Certification: | ISO9001,SGS,CTI,ROHS | | Package: | Carton, Wooden Case or as Required | | Country of origin: | China | ## Description Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers is part of our flat & other precision washers range (Washers). ### Key details - **Material:** Iron - **size:** OEM Customized - **Surface Treatment:** Plating, Galvanization, Anodized, and Powder coating. - **Finish:** Hot DIP Galvanized - **Certification:** ISO9001,SGS,CTI,ROHS - **Color:** Silver - **Kind:** Fasten - **Fixed:** Fixed Available configurations include color, material, customized, finish and package size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1,000 pieces at US$0.18 – 0.30 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 Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers? The listed minimum order is 1,000 pieces, at US$0.18 – 0.30 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### What are the main specifications of Square Flat Washer Custom Corrosion-Resistant Flat Round Lock Washers? Material: Iron; size: OEM Customized; Surface Treatment: Plating, Galvanization, Anodized, and Powder coating.; Finish: Hot DIP Galvanized; Certification: ISO9001,SGS,CTI,ROHS; Color: Silver. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include color, material, customized, finish and package size. 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 flat & other precision washers are available? The Flat & Other Precision Washers category lists 8,437 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/washers/flat-other-precision-washers/](https://engineeringhardware.com/fastener-products/washers/flat-other-precision-washers/) 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 Flat & Other Precision Washers →](https://engineeringhardware.com/fastener-products/washers/flat-other-precision-washers/) [![Stainless Steel Structure Washer for Food Processing with Continuous Cleaning](https://img.engineeringhardware.com/Stainless-Steel-Structure-Washer-for-Food-Processing-with-Continuous-Cleaning.webp)](https://engineeringhardware.com/product/stainless-steel-structure-washer-for-food-processing-with-continuous-cleaning/) Flat & Other Precision Washers ### [Stainless Steel Structure Washer for Food Processing with Continuous Cleaning](https://engineeringhardware.com/product/stainless-steel-structure-washer-for-food-processing-with-continuous-cleaning/) Washer · 380V **US$5,400**MOQ 2 sets [![Flat Copper Washer Gasket Washers Fastener 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