--- title: "6″ Stainless Flat Finish Washer, 3/8″ Outside Diameter" description: "6″ Stainless Flat Finish Washer, 3/8″ Outside Diameter — Flat & Other Precision Washers. Material: Carbon Steel. MOQ 10,000 pieces, US$0.024." url: https://engineeringhardware.com/product/6-stainless-flat-finish-washer-3-8-outside-diameter/ source: Engineering Hardware & Fasteners --- # 6″ Stainless Flat Finish Washer, 3/8″ Outside Diameter [![6″ Stainless Flat Finish Washer, 3/8″ Outside Diameter](https://img.engineeringhardware.com/6-Stainless-Flat-Finish-Washer-3-8-Outside-Diameter.webp)](https://img.engineeringhardware.com/6-Stainless-Flat-Finish-Washer-3-8-Outside-Diameter.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/6-stainless-flat-finish-washer-3-8-outside-diameter.md) Model no. **M2.5 M4.2 M4.8** US$0.024 / piece MOQ 10,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Standard:** according customer's requirments - **Surface:** Zinc plated, Hot dip galvanizing, Dacromet, mechanical galvanizing, ruspert/etc. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%206%26%238243%3B%20Stainless%20Flat%20Finish%20Washer%2C%203%2F8%26%238243%3B%20Outside%20Diameter%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F6-stainless-flat-finish-washer-3-8-outside-diameter%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 | | --- | --- | | Type | Flat Gasket | | Material | Carbon Steel | | Model NO. | M2.5 M4.2 M4.8 | | Combination Washer Structure | A Type | | Combination Washer Packaging | Half a Pack | | Spring Washer Type | Standard | | Transport Package | Normal Small Boxes /Color Small Boxes /Bulk Pack | | Specification | 4.8x12 to 6.3x25 | | Origin | Tianjin, China | | HS Code | 4016939000 | | Production Capacity | 300tons/Month | | Standard | according customer's requirments | | Surface | Zinc plated, Hot dip galvanizing, Dacromet, mechanical galvanizing, ruspert/etc. | | Package | Normal small boxes /color small boxes /bulk packing /pallets | | Step1 | Just tell us the size/model and the quantity, so that we quote you first | | Step2 | Confirm price and order details | | Step3 | We will arrange production for you after receiving your deposit | | Add | Wangwenzhuang Industrial Area ,Xiqing District, Tianjin, China | | Category | [Flat & Other Precision Washers](https://engineeringhardware.com/fastener-products/washers/flat-other-precision-washers/) | ## Technical parameters | Description: | EPDM washer black bonded epdm washer stainless steel EPDM washer | | --- | --- | | Diameter: | 4.2-6.3, OD size :14/16/19/25 | | Standard: | according customer's requirments | | Material: | Carbon steel/Stainless steel/aluminum alloy | | Surface: | Zinc plated, Hot dip galvanizing, Dacromet, mechanical galvanizing, ruspert/etc. | | Package: | Normal small boxes /color small boxes /bulk packing /pallets | ## Description 6″ Stainless Flat Finish Washer, 3/8″ Outside Diameter is part of our flat & other precision washers range (Washers). ### Key details - **Type:** Flat Gasket - **Standard:** according customer's requirments - **Material:** Carbon Steel - **Combination Washer Structure:** A Type - **Combination Washer Packaging:** Half a Pack - **Spring Washer Type:** Standard - **Step2:** Confirm price and order details Available configurations include material, standard and surface. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 10,000 pieces at US$0.024 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 6″ Stainless Flat Finish Washer, 3/8″ Outside Diameter? The listed minimum order is 10,000 pieces, at US$0.024 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 6″ Stainless Flat Finish Washer, 3/8″ Outside Diameter? Type: Flat Gasket; Standard: according customer's requirments; Material: Carbon Steel; Combination Washer Structure: A Type; Combination Washer Packaging: Half a Pack; Spring Washer Type: Standard. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, standard and surface. 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/) [![Heavy Duty M6-M14 Red Copper Flat Sealing Industrial Gasket Washers](https://img.engineeringhardware.com/Heavy-Duty-M6-M14-Red-Copper-Flat-Sealing-Industrial-Gasket-Washers.webp)](https://engineeringhardware.com/product/heavy-duty-m6-m14-red-copper-flat-sealing-industrial-gasket-washers/) Flat & Other Precision Washers ### [Heavy Duty M6-M14 Red Copper Flat Sealing Industrial Gasket Washers](https://engineeringhardware.com/product/heavy-duty-m6-m14-red-copper-flat-sealing-industrial-gasket-washers/) Lock Washer · Stainless Steel, Carbon Steel **US$0.012 – 0.084**MOQ 10,000 pieces [![Car Oil Drain Plug Gasket Washer](https://img.engineeringhardware.com/Car-Oil-Drain-Plug-Gasket-Washer.webp)](https://engineeringhardware.com/product/car-oil-drain-plug-gasket-washer/) Flat & Other Precision Washers ### [Car Oil Drain Plug Gasket Washer](https://engineeringhardware.com/product/car-oil-drain-plug-gasket-washer/) Automotive Fasteners · PP/PA/POM etc **US$3.60 – 4.20**MOQ 10 sets [![Outdoor Wireless APP 9X18W 6in1 Battery Powered LED Wall Washer Light](https://img.engineeringhardware.com/Outdoor-Wireless-APP-9X18W-6in1-Battery-Powered-LED-Wall-Washer-Light.webp)](https://engineeringhardware.com/product/outdoor-wireless-app-9x18w-6in1-battery-powered-led-wall-washer-light/) Flat & Other Precision Washers ### [Outdoor Wireless APP 9X18W 6in1 Battery Powered LED Wall Washer Light](https://engineeringhardware.com/product/outdoor-wireless-app-9x18w-6in1-battery-powered-led-wall-washer-light/) Aluminum Alloy · CE, RoHS **US$204.00 – 216.00**MOQ 1 piece [![Heavy Duty Round Washer Pack DIN125A](https://img.engineeringhardware.com/Heavy-Duty-Round-Washer-Pack-DIN125A.webp)](https://engineeringhardware.com/product/heavy-duty-round-washer-pack-din125a/) Flat & Other Precision Washers ### [Heavy Duty Round Washer Pack DIN125A](https://engineeringhardware.com/product/heavy-duty-round-washer-pack-din125a/) DIN · Steel **US$0.12 – 1.20**MOQ 1,000 pieces [![High Pressure Cleaner AC Electric Portable Handheld Washer for Car & Home Use](https://img.engineeringhardware.com/High-Pressure-Cleaner-AC-Electric-Portable-Handheld-Washer-for-Car-Home-Use.webp)](https://engineeringhardware.com/product/high-pressure-cleaner-ac-electric-portable-handheld-washer-for-car-home-use/) Flat & Other Precision Washers ### [High Pressure Cleaner AC Electric Portable Handheld Washer for Car & Home Use](https://engineeringhardware.com/product/high-pressure-cleaner-ac-electric-portable-handheld-washer-for-car-home-use/) Hot &Cold Water High Pressure Washer · Motor **US$27.84 – 30.36**MOQ 500 pieces [![DIN 127 Standard Size Flat Washer Custom Sizes Available OEM Supplier](https://img.engineeringhardware.com/DIN-127-Standard-Size-Flat-Washer-Custom-Sizes-Available-OEM-Supplier.webp)](https://engineeringhardware.com/product/din-127-standard-size-flat-washer-custom-sizes-available-oem-supplier/) Flat & Other Precision Washers ### [DIN 127 Standard Size Flat Washer Custom Sizes Available OEM Supplier](https://engineeringhardware.com/product/din-127-standard-size-flat-washer-custom-sizes-available-oem-supplier/) Flat Gasket · GB, DIN, Uns,JIS **US$0.0012 – 0.24**MOQ 10,000 pieces [![M26 304 Stainless Steel Flat Washers](https://img.engineeringhardware.com/M26-304-Stainless-Steel-Flat-Washers.webp)](https://engineeringhardware.com/product/m26-304-stainless-steel-flat-washers/) Flat & Other Precision Washers ### [M26 304 Stainless Steel Flat Washers](https://engineeringhardware.com/product/m26-304-stainless-steel-flat-washers/) Flat Gasket · ASME/ANSI B18.21.1, DIN127A, DIN127B, DIN7980 **US$0.012 – 0.12**MOQ 10 pieces [![Techtron Wheel Spacer Washer Round Mounting Plate](https://img.engineeringhardware.com/Techtron-Wheel-Spacer-Washer-Round-Mounting-Plate.webp)](https://engineeringhardware.com/product/techtron-wheel-spacer-washer-round-mounting-plate/) Flat & Other Precision Washers ### [Techtron Wheel Spacer Washer Round Mounting Plate](https://engineeringhardware.com/product/techtron-wheel-spacer-washer-round-mounting-plate/) ASTM, GOST, GB, JIS, ANSI, BS · Metal **US$0.12 – 0.36**MOQ 1,000 pieces **US$0.024**MOQ 10,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%206%26%238243%3B%20Stainless%20Flat%20Finish%20Washer%2C%203%2F8%26%238243%3B%20Outside%20Diameter%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2F6-stainless-flat-finish-washer-3-8-outside-diameter%2F)