--- title: "Countersunk Hex Flange Insert Nylon Locking Nuts" description: "Countersunk Hex Flange Insert Nylon Locking Nuts — Countersunk & Flat-Head Machine Screws. MOQ 1 kilogram, US$0.60 – 12.00." url: https://engineeringhardware.com/product/countersunk-hex-flange-insert-nylon-locking-nuts/ source: Engineering Hardware & Fasteners --- # Countersunk Hex Flange Insert Nylon Locking Nuts [![Countersunk Hex Flange Insert Nylon Locking Nuts](https://img.engineeringhardware.com/Countersunk-Hex-Flange-Insert-Nylon-Locking-Nuts.webp)](https://img.engineeringhardware.com/Countersunk-Hex-Flange-Insert-Nylon-Locking-Nuts.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Screws › Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/countersunk-hex-flange-insert-nylon-locking-nuts.md) Model no. **Flange locking nut** US$0.60 – 12.00 / kilogram MOQ 1 kilogram · Final price confirmed in your quote - **Material:** Carbon Steel - **Head Style:** Hexagonal - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Grade:** 4.8 - **Surface Treatment:** Plain, Black, Zinc Plated, Yellow Zinc Plated, Hot - **Color:** Any Color - **Package Size:** 20.00cm * 22.00cm * 23.00cm - **Size:** M2-M30 . Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Countersunk%20Hex%20Flange%20Insert%20Nylon%20Locking%20Nuts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcountersunk-hex-flange-insert-nylon-locking-nuts%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 | | Type | Hexagon Head | | Model NO. | Flange locking nut | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, ANSI, GB, JIS, GOST, BSW | | Grade | 4.8 | | Application | Building, Infrastruc Construction, Machinery, etc | | Surface Treatment | Plain, Black, Zinc Plated, Yellow Zinc Plated, Hot | | Color | Any Color | | After-Sale Service | Available | | Transport Package | Carton | | Specification | M2-M30 | | Origin | China | | HS Code | 7318160000 | | Production Capacity | 200 Tons/Month | | Package Size | 20.00cm * 22.00cm * 23.00cm | | Package Gross Weight | 20.000kg | | Product Name. | FLANGE LOCKING NUT | | Size | M2-M30 . | | Finish | Plain Finish ,Yellow/white Zinc Plated,Hot DIP Galvanized. | | Packaging | Bags&Cartons&Pallets or Customized . | | Delivery time | Normally in 20-30 days. | | Why choose us | 1.We are manufacture, have own factory. | | Category | [Countersunk & Flat-Head Machine Screws](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) | ## Technical parameters | · Product Name.:FLANGE LOCKING NUT | | --- | | · Standard: DIN, ISO, ANSI/ASTM, BS, JIS. | | · Material: Carbon Steel,Stainless Steel,C1022A + heat treatment | | ·Grade: 4.8, 8.8, 10.9, 12.9,A2-70,A4-80 . | | · Size: M2-M30 . | | ·Finish: Plain Finish ,Yellow/white Zinc Plated,Hot DIP Galvanized. | | ·Packaging :Bags&Cartons&Pallets or Customized . | | ·Delivery time: Normally in 20-30 days. | ## Description Countersunk Hex Flange Insert Nylon Locking Nuts is part of our countersunk & flat-head machine screws range (Screws). ### Key details - **Type:** Hexagon Head - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW - **Material:** Carbon Steel - **Grade:** 4.8 - **Size:** M2-M30 . - **Head Style:** Hexagonal - **Surface Treatment:** Plain, Black, Zinc Plated, Yellow Zinc Plated, Hot - **Finish:** Plain Finish ,Yellow/white Zinc Plated,Hot DIP Galvanized. Available configurations include material, head style, standard, grade and surface treatment. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1 kilogram at US$0.60 – 12.00 per kilogram. 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 Countersunk Hex Flange Insert Nylon Locking Nuts? The listed minimum order is 1 kilogram, at US$0.60 – 12.00 per kilogram. 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 Countersunk Hex Flange Insert Nylon Locking Nuts? Type: Hexagon Head; Standard: DIN, ANSI, GB, JIS, GOST, BSW; Material: Carbon Steel; Grade: 4.8; Size: M2-M30 .; Head Style: Hexagonal. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, head style, standard, grade and surface treatment. 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 countersunk & flat-head machine screws are available? The Countersunk & Flat-Head Machine Screws category lists 2,424 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-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 Countersunk & Flat-Head Machine Screws →](https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/) [![Brass Machine Screws, DIN7991 H62 Solid Brass Screws, DIN7991 Hexagon Socket Countersunk Head Screws](https://img.engineeringhardware.com/Brass-Machine-Screws-DIN7991-H62-Solid-Brass-Screws-DIN7991-Hexagon-Socket-Countersunk-Head-Screws.webp)](https://engineeringhardware.com/product/brass-machine-screws-din7991-h62-solid-brass-screws-din7991-hexagon-socket/) Countersunk & Flat-Head Machine Screws ### [Brass Machine Screws, DIN7991 H62 Solid Brass Screws, DIN7991 Hexagon Socket Countersunk Head Screws](https://engineeringhardware.com/product/brass-machine-screws-din7991-h62-solid-brass-screws-din7991-hexagon-socket/) Countersunk Head · DIN, GB, ANSI, BSW, JIS, GOST **US$0.12**MOQ 1 piece [![304 Stainless Steel M4*8 Phillips Thin Flat Head Laptop Screw Wafer Ultra Low Head Screw Wholesale Screws China](https://img.engineeringhardware.com/304-Stainless-Steel-M4-8-Phillips-Thin-Flat-Head-Laptop-Screw-Wafer-Ultra-Low-Head-Screw-Wholesale-Screws-China.webp)](https://engineeringhardware.com/product/304-stainless-steel-m4-8-phillips-thin-flat-head-laptop-screw-wafer-ultra-low-head/) Countersunk & Flat-Head Machine Screws ### [304 Stainless Steel M4*8 Phillips Thin Flat Head Laptop Screw Wafer Ultra Low Head Screw Wholesale Screws China](https://engineeringhardware.com/product/304-stainless-steel-m4-8-phillips-thin-flat-head-laptop-screw-wafer-ultra-low-head/) Stainless Steel · Screw **US$0.048 – 0.072**MOQ 1,000 pieces [![Good Sales Chinese Hexagon Nut/Nylon Insert Lock Nut/Coupling Nut/Hex Nut/Wing Nut/Cage Nut/Tee Nut/Spring Nut/Castel Nut6](https://img.engineeringhardware.com/Good-Sales-Chinese-Hexagon-Nut-Nylon-Insert-Lock-Nut-Coupling-Nut-Hex-Nut-Wing-Nut-Cage-Nut-Tee-Nut-Spring-Nut-Castel-Nut6.webp)](https://engineeringhardware.com/product/good-sales-chinese-hexagon-nut-nylon-insert-lock-nut-coupling-nut-hex-nut-wing-nut/) Countersunk & Flat-Head Machine Screws ### [Good Sales Chinese Hexagon Nut/Nylon Insert Lock Nut/Coupling Nut/Hex Nut/Wing Nut/Cage Nut/Tee Nut/Spring Nut/Castel Nut6](https://engineeringhardware.com/product/good-sales-chinese-hexagon-nut-nylon-insert-lock-nut-coupling-nut-hex-nut-wing-nut/) Countersunk Head · DIN, GB, ANSI, BSW, JIS **US$0.48 – 0.72**MOQ 1,000 pieces [![Hexalobular Socket Raised Countersunk Head Screw ISO14584 Titanium Torx](https://img.engineeringhardware.com/Hexalobular-Socket-Raised-Countersunk-Head-Screw-ISO14584-Titanium-Torx.webp)](https://engineeringhardware.com/product/hexalobular-socket-raised-countersunk-head-screw-iso14584-titanium-torx/) Countersunk & Flat-Head Machine Screws ### [Hexalobular Socket Raised Countersunk Head Screw ISO14584 Titanium Torx](https://engineeringhardware.com/product/hexalobular-socket-raised-countersunk-head-screw-iso14584-titanium-torx/) Countersunk Head · DIN, GB, ANSI, JIS **US$0.024 – 0.096**MOQ 3,000 pieces [![Baiji Aluminum/Steel Blind Rivet China Manufacturing Countersunk Head Semi-Tubular Type Bis Approved Blind Rivets for Clutch Facing](https://img.engineeringhardware.com/Baiji-Aluminum-Steel-Blind-Rivet-China-Manufacturing-Countersunk-Head-Semi-Tubular-Type-Bis-Approved-Blind-Rivets-for-Clutch-Facing.webp)](https://engineeringhardware.com/product/baiji-aluminum-steel-blind-rivet-china-manufacturing-countersunk-head-semi-tubular/) Countersunk & Flat-Head Machine Screws ### [Baiji Aluminum/Steel Blind Rivet China Manufacturing Countersunk Head Semi-Tubular Type Bis Approved Blind Rivets for Clutch Facing](https://engineeringhardware.com/product/baiji-aluminum-steel-blind-rivet-china-manufacturing-countersunk-head-semi-tubular/) Metal · Standard or Customized **US$0.60 – 1.20**MOQ 1 piece [![Double Countersunk Head with Torx Drive Fiberboard Screw C1022A Steel for Furniture Assembly](https://img.engineeringhardware.com/Double-Countersunk-Head-with-Torx-Drive-Fiberboard-Screw-C1022A-Steel-for-Furniture-Assembly.webp)](https://engineeringhardware.com/product/double-countersunk-head-with-torx-drive-fiberboard-screw-c1022a-steel-for-furniture/) Countersunk & Flat-Head Machine Screws ### [Double Countersunk Head with Torx Drive Fiberboard Screw C1022A Steel for Furniture Assembly](https://engineeringhardware.com/product/double-countersunk-head-with-torx-drive-fiberboard-screw-c1022a-steel-for-furniture/) Carbon Steel / Stainless Steel 304/316 · Flat Head / Countersunk **US$0.0024 – 0.006**MOQ 200,000 pieces [![China Factory Made ISO 7045 Cross Recessed Pan Head Steel Screw](https://img.engineeringhardware.com/China-Factory-Made-ISO-7045-Cross-Recessed-Pan-Head-Steel-Screw.webp)](https://engineeringhardware.com/product/china-factory-made-iso-7045-cross-recessed-pan-head-steel-screw/) Countersunk & Flat-Head Machine Screws ### [China Factory Made ISO 7045 Cross Recessed Pan Head Steel Screw](https://engineeringhardware.com/product/china-factory-made-iso-7045-cross-recessed-pan-head-steel-screw/) Countersunk Head · DIN, GB, ANSI, BSW, JIS, GOST, ISO,ASTM **US$0.12 – 0.24**MOQ 100,000 pieces [![Factory Customized Aluminum Flat Head Black Anodized Screws Plastic Push Rivet Plastic Fastener Car Clips Automotive Fastener](https://img.engineeringhardware.com/Factory-Customized-Aluminum-Flat-Head-Black-Anodized-Screws-Plastic-Push-Rivet-Plastic-Fastener-Car-Clips-Automotive-Fastener.webp)](https://engineeringhardware.com/product/factory-customized-aluminum-flat-head-black-anodized-screws-plastic-push-rivet/) Countersunk & Flat-Head Machine Screws ### [Factory Customized Aluminum Flat Head Black Anodized Screws Plastic Push Rivet Plastic Fastener Car Clips Automotive Fastener](https://engineeringhardware.com/product/factory-customized-aluminum-flat-head-black-anodized-screws-plastic-push-rivet/) Hexagon Head · DIN, GB, ANSI, JIS **US$0.60 – 1.08**MOQ 10 pieces **US$0.60 – 12.00**MOQ 1 kilogramGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Countersunk%20Hex%20Flange%20Insert%20Nylon%20Locking%20Nuts%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcountersunk-hex-flange-insert-nylon-locking-nuts%2F)