--- title: "Durable M3 and M6 Copper Coated Welding Screw Studs" description: "Durable M3 and M6 Copper Coated Welding Screw Studs — Other Machine & Custom Screws. Grade: A, Size: Metric,Inch. MOQ 1,000 pieces, US$0.12 – 0.90." url: https://engineeringhardware.com/product/durable-m3-and-m6-copper-coated-welding-screw-studs/ source: Engineering Hardware & Fasteners --- # Durable M3 and M6 Copper Coated Welding Screw Studs [![Durable M3 and M6 Copper Coated Welding Screw Studs](https://img.engineeringhardware.com/Durable-M3-and-M6-Copper-Coated-Welding-Screw-Studs.webp)](https://img.engineeringhardware.com/Durable-M3-and-M6-Copper-Coated-Welding-Screw-Studs.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Other Machine & Custom Screws](https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/durable-m3-and-m6-copper-coated-welding-screw-studs.md) Model no. **Weld studs** | **US$0.12**1,000–19,999 pieces | **US$0.90**20,000+ pieces | | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel,Brass,Stainless Steel,Aluminum,etc - **Surface Finishing:** Polished - **Grade:** A - **Customized:** Customized - **Size:** Metric,Inch - **Screw heading & rolling:** Metric 0.8-M6,Unified Imperial#0-1/4'' Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Durable%20M3%20and%20M6%20Copper%20Coated%20Welding%20Screw%20Studs%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fdurable-m3-and-m6-copper-coated-welding-screw-studs%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 | | --- | --- | | Material | Carbon Steel,Brass,Stainless Steel,Aluminum,etc | | Surface Finishing | Polished | | Model NO. | Weld studs | | Grade | A | | Certification | ISO, GS, RoHS, CE | | Customized | Customized | | Size | Metric,Inch | | Transport Package | PE Bag + Cartons | | Specification | M2 M3 M4 M5 M6 | | Origin | Shenzhen China | | Production Capacity | 1000000 | | ISO9001 | 2008 | | Auto-lathe turning | ODΦ0.5-20mm,Tol.±0.01mm | | CNC lathe turning | ODΦ0.5-250mm,Tol.±0.005mm | | CNC Milling | 800x600mm(LxW),Tol.±0.05mm | | Grinding | Tol.±0.002mm | | Screw heading & rolling | Metric 0.8-M6,Unified Imperial#0-1/4'' | | Stamping | 200T max | | Category | [Other Machine & Custom Screws](https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/) | ## Technical parameters | Material | Brass,Stainless Steel,Carbon steel,Aluminum alloy,according to customer's requirement | | --- | --- | | Finish | Zn/Ni/Tin/Au plating,Black Oxide,Anodizing and so on. | | Insert Methods | By Ultrasonic,Heat staking,Insert Molding,Cold press-in Methods custom by your required | | Quality Control | Follow Drawing Spec | | Management System | ISO9001:2008 | | Certification | SGS,RoHS,Material Certication,PPAP | | Lead Time | 5-10 working days | | Samples | Welcome | | Delivery term | By DHL,UPS,TNT,FedEx,EMS,By Ocean,By Air | | Production Capability | Auto-lathe turning:ODΦ0.5-20mm,Tol.±0.01mm | | CNC lathe turning:ODΦ0.5-250mm,Tol.±0.005mm | | | CNC Milling:800x600mm(LxW),Tol.±0.05mm | | | Grinding:Tol.±0.002mm | | | Screw heading & rolling:Metric 0.8-M6,Unified Imperial#0-1/4'' | | | Stamping:200T max | | | Specification | M2/ M2.5/ M3/M3.5/M4/M5/M6/M8/M10/M12 ect ,custom per your requirement | ## Description Durable M3 and M6 Copper Coated Welding Screw Studs is part of our other machine & custom screws range (Screws). ### Key details - **Material:** Carbon Steel,Brass,Stainless Steel,Aluminum,etc - **Grade:** A - **Size:** Metric,Inch - **Certification:** ISO, GS, RoHS, CE - **Surface Finishing:** Polished - **ISO9001:** 2008 - **Auto-lathe turning:** ODΦ0.5-20mm,Tol.±0.01mm - **CNC lathe turning:** ODΦ0.5-250mm,Tol.±0.005mm Available configurations include material, surface finishing, grade, customized and 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$0.12 – 0.90 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 Durable M3 and M6 Copper Coated Welding Screw Studs? The listed minimum order is 1,000 pieces, at US$0.12 – 0.90 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 1,000–19,999 pieces; US$0.90 for 20,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Durable M3 and M6 Copper Coated Welding Screw Studs? Material: Carbon Steel,Brass,Stainless Steel,Aluminum,etc; Grade: A; Size: Metric,Inch; Certification: ISO, GS, RoHS, CE; Surface Finishing: Polished; ISO9001: 2008. 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, grade, customized and 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 other machine & custom screws are available? The Other Machine & Custom Screws category lists 14,058 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/](https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/) 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 Other Machine & Custom Screws →](https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/) [![Grade 4.8/8.8/10.9 Carbon Steel Zinc Plated Weld Eye Screw](https://img.engineeringhardware.com/Grade-4-8-8-8-10-9-Carbon-Steel-Zinc-Plated-Weld-Eye-Screw.webp)](https://engineeringhardware.com/product/grade-4-8-8-8-10-9-carbon-steel-zinc-plated-weld-eye-screw/) Other Machine & Custom Screws ### [Grade 4.8/8.8/10.9 Carbon Steel Zinc Plated Weld Eye Screw](https://engineeringhardware.com/product/grade-4-8-8-8-10-9-carbon-steel-zinc-plated-weld-eye-screw/) Hexagon Head · DIN **US$0.012**MOQ 1,000 pieces [![Zinc Plating Insert Nut Screw for Furniture](https://img.engineeringhardware.com/Zinc-Plating-Insert-Nut-Screw-for-Furniture.webp)](https://engineeringhardware.com/product/zinc-plating-insert-nut-screw-for-furniture/) Other Machine & Custom Screws 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