--- title: "M4X20 A2 Stainless Screw with Cone Point Socket Set Screw" description: "M4X20 A2 Stainless Screw with Cone Point Socket Set Screw — Set, Grub & Socket Set Screws. Size: Customized. MOQ 10,000 pieces, US$0.012 – 0.036." url: https://engineeringhardware.com/product/m4x20-a2-stainless-screw-with-cone-point-socket-set-screw/ source: Engineering Hardware & Fasteners --- # M4X20 A2 Stainless Screw with Cone Point Socket Set Screw [![M4X20 A2 Stainless Screw with Cone Point Socket Set Screw](https://img.engineeringhardware.com/M4X20-A2-Stainless-Screw-with-Cone-Point-Socket-Set-Screw.webp)](https://img.engineeringhardware.com/M4X20-A2-Stainless-Screw-with-Cone-Point-Socket-Set-Screw.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Set, Grub & Socket Set Screws](https://engineeringhardware.com/fastener-products/screws/set-grub-socket-set-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/m4x20-a2-stainless-screw-with-cone-point-socket-set-screw.md) | **US$0.036**10,000–49,999 pieces | **US$0.024**50,000–99,999 pieces | **US$0.012**100,000+ pieces | | --- | --- | --- | MOQ 10,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel/Stainless Steel/Alloy Steel - **Shape of Head:** Round - **Surface Finishing:** Black/Zinc,Yzp,Bzp,HDG,Plain - **Customized:** Customized - **Head Type:** Pan, Truss, Flat, Round, Hex, Cheese, Binding, Csk - **Thread:** Fine Thread, Coarse Thread - **Size:** Customized - **Thread Type:** Coarse Thread/Fine Thread/Twin-Thread Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20M4X20%20A2%20Stainless%20Screw%20with%20Cone%20Point%20Socket%20Set%20Screw%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fm4x20-a2-stainless-screw-with-cone-point-socket-set-screw%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/Stainless Steel/Alloy Steel | | Shape of Head | Round | | Surface Finishing | Black/Zinc,Yzp,Bzp,HDG,Plain | | Certification | ISO, GS, CE | | Customized | Customized | | Delivery | 5-10 Days in Stock, 10-30 Days Not in Stock | | Head Type | Pan, Truss, Flat, Round, Hex, Cheese, Binding, Csk | | Thread | Fine Thread, Coarse Thread | | Size | Customized | | MOQ | 1tons | | Thread Type | Coarse Thread/Fine Thread/Twin-Thread | | Drive Type | Phillips Drive/Slotted Drive/Torx Drive/Pozidriv D | | Length | 10mm / 20mm / 30mm / 50mm / Custom | | Diameter | 3mm / 4mm / 5mm / 6mm / 8mm / Custom | | Thread Length | Custom | | Surface Finish | Zinc Plated / Black Oxide / Nickel-Plated / Passiv | | Application | Wood / Metal / Plastic / Sheet Metal / Electrical | | Transport Package | Plastic Bags+Cartons+Pallets, or Customlized | | Specification | as Request | | Origin | Hebei, China | | HS Code | 731814 | | Production Capacity | 50 Million Tons/Month | | Package Size | 24.40cm * 11.00cm * 6.00cm | | Package Gross Weight | 30.000kg | | High-strength & high-load applications | engines, heavy machinery, structural bolts. | | Lightweight applications | aerospace, racing, drones, bicycles. | | Longshi Advantage | 8-dimensional customization (material, specification, surface treatment, etc.), with 3D design drawings + process plans. | | Stockout rate | 10+%), with real-time inventory monitoring. For extreme stockouts, free upgraded alternatives are provided (peers often leave clients waiting indefinitely). | | Category | [Set, Grub & Socket Set Screws](https://engineeringhardware.com/fastener-products/screws/set-grub-socket-set-screws/) | ## Technical parameters | Thread Dimensionsd | M1.2 | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Pitch (P) | 0.25 | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | | d1 (Maximum Value) | 0.12 | 0.16 | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 | 0.5 | 1.5 | | n (Nominal) | 0.2 | 0.25 | 0.25 | 0.4 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | | n (Minimum Value) | 0.26 | 0.31 | 0.31 | 0.46 | 0.46 | 0.56 | 0.66 | 0.86 | 1.06 | | n (Maximum Value) | 0.4 | 0.45 | 0.45 | 0.6 | 0.6 | 0.7 | 0.8 | 1 | 1.2 | | t (Minimum Value) | 0.4 | 0.56 | 0.64 | 0.72 | 0.8 | 0.96 | 1.12 | 1.28 | 1.6 | | t (Maximum Value) | 0.52 | 0.74 | 0.84 | 0.95 | 1.05 | 1.21 | 1.42 | 1.63 | 2 | | Material | Corrosion Resistance | Temperature Resistance | Magnetic | Applications | | --- | --- | --- | --- | --- | | Carbon Steel | Low | -20°C to 300°C(-4°F to 572°F) | Yes | General purpose, construction, indoor machinery, automotive. | | Alloy Steel | Low to Medium | -50°C to 450°C(-58°F to 842°F) | Yes | High-strength & high-load applications: engines, heavy machinery, structural bolts. | | SS304 Stainless Steel | Good | -196°C to 800°C(-321°F to 1472°F) | No | Food processing, kitchen equipment, chemical equipment, architectural fixtures. | | SS316 Stainless Steel | Excellent | -196°C to 800°C(-321°F to 1472°F) | No | Marine environments, chemical processing, medical implants, coastal structures. | | Brass | Good | -20°C to 200°C(-4°F to 392°F) | No | Electrical applications, plumbing and pipe fittings, decorative purposes. | | Aluminum Alloy | Good | -200°C to 150°C(-328°F to 302°F) | No | Lightweight applications: aerospace, racing, drones, bicycles. | | Titanium Alloy | Excellent | -200°C to 600°C(-328°F to 1112°F) | No | High-end aerospace, medical implants, performance racing, chemical industry. | | Nylon (Plastic) | Excellent | -40°C to 85°C(-40°F to 185°F) | No | Electrical insulation, lightweight fastening, chemical resistance, electronics. | | Items | Hex Flange Nut/ Hex Nut/Nylon Insert Nut/Rivet Nut/Wing Nut/Spring Nut/Square Nut...... | | --- | --- | | Material | Stainless Steel A2 A4 A8/Carbon Steel/Brass/Alloy Steel | | Grade | A2-70 A2-80 A4-70 A4-80 A8; Class 4/5/6/8/10/12;Grade 2/5/8 | | Standard | DIN;ISO;ASME;GB;BS;IFI;GOST....and customized | | Surface | Black;Zinc Plate;Dacromet;Ruspert;Magni;Zinc-Nickel;Plain;HDG | | Package | Box;Plastic Bag;Plastic Bucket;Blister Box;Pallet Carton... | | Sample | Available | | EU CBAM | Available | | Items | U Bolt/Hex Flange Bolt/ Hex bolt/Hammer Bolt/Socket Bolt/Carriage Bolt/Hanger Bolt/Wing Bolt/Eye bolt/Weld bolt/Clinch Bolt/ Thread Bar/Thread Rod | | Material | Stainless Steel A2 A4 A8/Carbon Steel/Brass/Alloy Steel | | Grade | A2-70 A2-80 A4-70 A4-80 A8; Class 4.6/4.8/5.6/6.8/8.8/10.9/12.9;Grade 2/5/8 | | Standard | DIN;ISO;ASME;GB;BS;IFI;GOST....and customized | | Surface | Black;Zinc Plate;Dacromet;Ruspert;Magni;Zinc-Nickel;Plain;HDG | | Package | Box;Plastic Bag;Plastic Bucket;Blister Box;Pallet Carton... | | Sample | Available | | EU CBAM | Available | | Items | Chipboard Screw/ Wood Scew/ Roofing Screw/Decking Screw/ Facade Screw/Drywall Screw/Set Screw/Drilling Screw/ Euro Screw/ Window Screw/ Bimetal | | Material | Stainless Steel C1 A2 A4 /Carbon Steel/Brass/Alloy Steel | | Grade | A2-70 A2-80 A4-70 A4-80 | | Standard | DIN;ISO;ASME;GB;BS;IFI;GOST....and customized | | Surface | Black;Zinc Plate;Dacromet;Ruspert;Magni;Zinc-Nickel;Plain;HDG | | Package | Box;Plastic Bag;Plastic Bucket;Blister Box;Pallet Carton... | | Sample | Available | | EU CBAM | Available | ## Description M4X20 A2 Stainless Screw with Cone Point Socket Set Screw is part of our set, grub & socket set screws range (Screws). ### Key details - **Material:** Carbon Steel/Stainless Steel/Alloy Steel - **Size:** Customized - **Diameter:** 3mm / 4mm / 5mm / 6mm / 8mm / Custom - **Thread:** Fine Thread, Coarse Thread - **Length:** 10mm / 20mm / 30mm / 50mm / Custom - **Head Type:** Pan, Truss, Flat, Round, Hex, Cheese, Binding, Csk - **Application:** Wood / Metal / Plastic / Sheet Metal / Electrical - **Certification:** ISO, GS, CE Available configurations include material, shape of head, surface finishing, customized and head type. 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$0.012 – 0.036 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 M4X20 A2 Stainless Screw with Cone Point Socket Set Screw? The listed minimum order is 10,000 pieces, at US$0.012 – 0.036 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$0.036 for 10,000–49,999 pieces; US$0.024 for 50,000–99,999 pieces; US$0.012 for 100,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of M4X20 A2 Stainless Screw with Cone Point Socket Set Screw? Material: Carbon Steel/Stainless Steel/Alloy Steel; Size: Customized; Diameter: 3mm / 4mm / 5mm / 6mm / 8mm / Custom; Thread: Fine Thread, Coarse Thread; Length: 10mm / 20mm / 30mm / 50mm / Custom; Head Type: Pan, Truss, Flat, Round, Hex, Cheese, Binding, Csk. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, shape of head, surface finishing, customized and head type. 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 set, grub & socket set screws are available? The Set, Grub & Socket Set Screws category lists 1,721 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/set-grub-socket-set-screws/](https://engineeringhardware.com/fastener-products/screws/set-grub-socket-set-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 Set, Grub & Socket Set Screws →](https://engineeringhardware.com/fastener-products/screws/set-grub-socket-set-screws/) [![Brass Hexagon Socket Grub Set Screw with Cup Point DIN 916](https://img.engineeringhardware.com/Brass-Hexagon-Socket-Grub-Set-Screw-with-Cup-Point-DIN-916.webp)](https://engineeringhardware.com/product/brass-hexagon-socket-grub-set-screw-with-cup-point-din-916/) Set, Grub & Socket Set Screws ### [Brass Hexagon Socket Grub Set Screw with Cup Point DIN 916](https://engineeringhardware.com/product/brass-hexagon-socket-grub-set-screw-with-cup-point-din-916/) Stopper Screw · DIN, GB, ANSI, BSW, JIS, GOST **US$0.012 – 0.036**MOQ 1,000 pieces [![M3-M12 Stainless Steel Slotted Flat End Headless DIN551 Slotted Set 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