--- title: "Coupling / Hex Nut /Retaining Rivet Nut" description: "Coupling / Hex Nut /Retaining Rivet Nut — Rivet Nuts & Threaded Rivet Inserts. Material: Stainless Steel, Standard: Nonstandard. MOQ 100 pieces, US$0.12." url: https://engineeringhardware.com/product/coupling-hex-nut-retaining-rivet-nut/ source: Engineering Hardware & Fasteners --- # Coupling / Hex Nut /Retaining Rivet Nut [![Coupling / Hex Nut /Retaining Rivet Nut](https://img.engineeringhardware.com/Coupling-Hex-Nut-Retaining-Rivet-Nut.webp)](https://img.engineeringhardware.com/Coupling-Hex-Nut-Retaining-Rivet-Nut.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Threaded Inserts & Clinch Fasteners › Rivet Nuts & Threaded Rivet Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/rivet-nuts-threaded-rivet-inserts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/coupling-hex-nut-retaining-rivet-nut.md) Model no. **KY-502** US$0.12 / piece MOQ 100 pieces · Final price confirmed in your quote - **Material:** Stainless Steel - **Standard:** Nonstandard - **Size:** 1/8"-3/4" - **Head Code:** Round - **Thread:** BSPT, NPT, DIN (ISO7/1, DIN 2999, ANSI B1.20.1) Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Coupling%20%2F%20Hex%20Nut%20%2FRetaining%20Rivet%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcoupling-hex-nut-retaining-rivet-nut%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 | | --- | --- | | Connection | Female | | Flexible or Rigid | Rigid | | Model NO. | KY-502 | | Material | Stainless Steel | | Standard | Nonstandard | | Size | 1/8"-3/4" | | Technics | Forged | | Place of Origin | Zhejiang China | | Item No. | Ky-502 | | Head Code | Round | | Transport Package | Plastic Bag+Carton Box+Pallet | | Specification | ISO9001 | | Origin | Zhejiang China | | HS Code | 7307990000 | | Production Capacity | 200000PCS / Months | | Name | Coupling / Hex NutRetaining Rivet Nut | | Thread | BSPT, NPT, DIN (ISO7/1, DIN 2999, ANSI B1.20.1) | | Applications range | Petroleum, chemical, power, gas, metallurgy, shipbuilding. construction, etc. | | Note | All CNC machining fittings can be produced accroding to your drawings or requirments! | | Web | china-kaiyu.en.made-in-china.com | | Category | [Rivet Nuts & Threaded Rivet Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/rivet-nuts-threaded-rivet-inserts/) | ## Technical parameters | Production Equipment List | | | | --- | --- | --- | | NO. | Equipment Name | Quantity(set) | | 1. | CNC Machine | 60 | | 2. | Meter Lathe | 80 | | 3. | Bench Drilling Machine | 25 | | 4. | Screw Rolling Machine | 4 | | 5. | Cenerless Grinding Machine | 5 | | 6. | Milling Machine | 5 | | 7. | Tapping Machine | 5 | | 8. | Punching Machine | 3 | | 9. | Ultrasonic Cleaning Machine | 1 | | Inspection Equipmen List | | | | 1. | Measuring Projector | 1 | | 2. | Rockwell Hardness Tester | 1 | | 3. | Swing Machine | 1 | | 4. | Thread Ring Gauge | 1 | | Thread Plug Gauge | | | ## Description Coupling / Hex Nut /Retaining Rivet Nut is part of our rivet nuts & threaded rivet inserts range (Threaded Inserts & Clinch Fasteners). ### Key details - **Standard:** Nonstandard - **Material:** Stainless Steel - **Size:** 1/8"-3/4" - **Thread:** BSPT, NPT, DIN (ISO7/1, DIN 2999, ANSI B1.20.1) - **Connection:** Female - **Flexible or Rigid:** Rigid - **Technics:** Forged - **Place of Origin:** Zhejiang China Available configurations include material, standard, size, head code and thread. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 100 pieces at US$0.12 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 Coupling / Hex Nut /Retaining Rivet Nut? The listed minimum order is 100 pieces, at US$0.12 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 Coupling / Hex Nut /Retaining Rivet Nut? Standard: Nonstandard; Material: Stainless Steel; Size: 1/8"-3/4"; Thread: BSPT, NPT, DIN (ISO7/1, DIN 2999, ANSI B1.20.1); Connection: Female; Flexible or Rigid: Rigid. 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, size, head code and thread. 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 rivet nuts & threaded rivet inserts are available? The Rivet Nuts & Threaded Rivet Inserts category lists 1,850 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/rivet-nuts-threaded-rivet-inserts/](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/rivet-nuts-threaded-rivet-inserts/) 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 Rivet Nuts & Threaded Rivet Inserts →](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/rivet-nuts-threaded-rivet-inserts/) [![Black M6 Rivet Nuts Carbon Steel Zinc-Plated Knurled Flat Head Threaded Insert Nut](https://img.engineeringhardware.com/Black-M6-Rivet-Nuts-Carbon-Steel-Zinc-Plated-Knurled-Flat-Head-Threaded-Insert-Nut.webp)](https://engineeringhardware.com/product/black-m6-rivet-nuts-carbon-steel-zinc-plated-knurled-flat-head-threaded-insert-nut/) Rivet Nuts & Threaded Rivet Inserts ### [Black M6 Rivet Nuts Carbon Steel Zinc-Plated Knurled Flat Head Threaded Insert Nut](https://engineeringhardware.com/product/black-m6-rivet-nuts-carbon-steel-zinc-plated-knurled-flat-head-threaded-insert-nut/) Round Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.012 – 0.036**MOQ 10,000 pieces [![Sos Standoffs 304 Stainless Steel Through-Hole 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Inserts ### [Aluminum and Stainless Steel Pop Dome Head Blind Rivet Nut](https://engineeringhardware.com/product/aluminum-and-stainless-steel-pop-dome-head-blind-rivet-nut/) Blind Rive · DIN **US$0.036 – 0.048**MOQ 1,000 parcels **US$0.12**MOQ 100 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Coupling%20%2F%20Hex%20Nut%20%2FRetaining%20Rivet%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcoupling-hex-nut-retaining-rivet-nut%2F)