--- title: "Wholesale Stainless Steel 304 Barrel Rivet Nut Flat Round Head M4 Socket Connector Bolt Nut" description: "Wholesale Stainless Steel 304 Barrel Rivet Nut Flat Round Head M4 Socket Connector Bolt… — Rivet Nuts & Threaded Rivet Inserts." url: https://engineeringhardware.com/product/wholesale-stainless-steel-304-barrel-rivet-nut-flat-round-head-m4-socket-connector/ source: Engineering Hardware & Fasteners --- # Wholesale Stainless Steel 304 Barrel Rivet Nut Flat Round Head M4 Socket Connector Bolt Nut [![Wholesale Stainless Steel 304 Barrel Rivet Nut Flat Round Head M4 Socket Connector Bolt Nut](https://img.engineeringhardware.com/Wholesale-Stainless-Steel-304-Barrel-Rivet-Nut-Flat-Round-Head-M4-Socket-Connector-Bolt-Nut.webp)](https://img.engineeringhardware.com/Wholesale-Stainless-Steel-304-Barrel-Rivet-Nut-Flat-Round-Head-M4-Socket-Connector-Bolt-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/wholesale-stainless-steel-304-barrel-rivet-nut-flat-round-head-m4-socket-connector.md) US$0.0012 – 0.006 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Stainless Steel - **Head Style:** Round - **Standard:** DIN, ANSI, ASME, Ifi, ISO - **Grade:** Grade2, 5, 8, 10 - **Steel Grade:** DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8; ASTM: 307A,307B,A325,A394,A490,A449, Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Wholesale%20Stainless%20Steel%20304%20Barrel%20Rivet%20Nut%20Flat%20Round%20Head%20M4%20Socket%20Connector%20Bolt%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fwholesale-stainless-steel-304-barrel-rivet-nut-flat-round-head-m4-socket-connector%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 | Stainless Steel | | Type | Round Head | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, ANSI, ASME, Ifi, ISO | | Grade | Grade2, 5, 8, 10 | | MOQ | 1000PCS | | Sampling Time | 3~5 Workdays | | Certificate | ISO9001:2008, SGS Testing Report & Roh | | Product Name | Flat Head Hex Socket Sleeve Barrel Cap Nut | | Keyword | Sleeve Barrel Nut | | Application | Heavy Industry, General Industry, Automotive Indus | | Transport Package | Bulk in Carton. Then in Pallet | | Specification | M3-M24 | | Origin | China | | HS Code | 7318160000 | | Production Capacity | 100tons/Month | | Stainless Steel | SS201, SS303, SS304, SS316,SS316L,SS904L ,SS31803 | | Steel Grade | DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8; ASTM: 307A,307B,A325,A394,A490,A449, | | M2-M24 | Cold Froging,M24-M100 Hot Forging, | | Busy season | 15-30days,Slack seaon:10-20days | | Category | [Rivet Nuts & Threaded Rivet Inserts](https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/rivet-nuts-threaded-rivet-inserts/) | ## Technical parameters | Products name | BOLTS, NUTS, WASHERS, SCREWS, THREADED ROD, ANCHOR BOLTS, STAMPING PART,SOLAR ENERGY ACCESSORIES | | --- | --- | | Standard | DIN,ASTM/ANSI JIS EN ISO,AS,GB | | Material | Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L ,SS31803 | | Steel Grade: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8; ASTM: 307A,307B,A325,A394,A490,A449, | | | Finishing | Zinc(Yellow,White,Blue,Black),Hot Dip Galvanized(HDG),Black, Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated | | Production Process | M2-M24:Cold Froging,M24-M100 Hot Forging, Machining and CNC for Customized fastener | | Customized Products Lead time | Busy season:15-30days,Slack seaon:10-20days | | Stock Products | Stainless steel: All DIN Standard stainless steel fastener(BOLTS,NUTS.SCREWS.WASHERS) | ## Description Wholesale Stainless Steel 304 Barrel Rivet Nut Flat Round Head M4 Socket Connector Bolt Nut is part of our rivet nuts & threaded rivet inserts range (Threaded Inserts & Clinch Fasteners). ### Key details - **Type:** Round Head - **Standard:** DIN, ANSI, ASME, Ifi, ISO - **Material:** Stainless Steel - **Grade:** Grade2, 5, 8, 10 - **Head Style:** Round - **Connection:** Common Bolt - **Application:** Heavy Industry, General Industry, Automotive Indus - **Sampling Time:** 3~5 Workdays Available configurations include material, head style, standard, grade and steel grade. 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$0.0012 – 0.006 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 Wholesale Stainless Steel 304 Barrel Rivet Nut Flat Round Head M4 Socket Connector Bolt Nut? The listed minimum order is 1,000 pieces, at US$0.0012 – 0.006 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 Wholesale Stainless Steel 304 Barrel Rivet Nut Flat Round Head M4 Socket Connector Bolt Nut? Type: Round Head; Standard: DIN, ANSI, ASME, Ifi, ISO; Material: Stainless Steel; Grade: Grade2, 5, 8, 10; Head Style: Round; Connection: Common Bolt. 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 steel grade. 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/) [![High Quality Pressing Stainless Steel Self Clinching Fastener Rivet Nuts](https://img.engineeringhardware.com/High-Quality-Pressing-Stainless-Steel-Self-Clinching-Fastener-Rivet-Nuts.webp)](https://engineeringhardware.com/product/high-quality-pressing-stainless-steel-self-clinching-fastener-rivet-nuts/) Rivet Nuts & Threaded Rivet Inserts ### [High Quality Pressing Stainless Steel Self Clinching Fastener Rivet Nuts](https://engineeringhardware.com/product/high-quality-pressing-stainless-steel-self-clinching-fastener-rivet-nuts/) Round Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.012 – 6.79**MOQ 100 pieces [![Rivet Nuts Ms Ss Flat Head Vertical Pattern Auto Parts](https://img.engineeringhardware.com/Rivet-Nuts-Ms-Ss-Flat-Head-Vertical-Pattern-Auto-Parts.webp)](https://engineeringhardware.com/product/rivet-nuts-ms-ss-flat-head-vertical-pattern-auto-parts/) Rivet Nuts & Threaded Rivet Inserts ### [Rivet Nuts Ms Ss Flat Head Vertical Pattern Auto Parts](https://engineeringhardware.com/product/rivet-nuts-ms-ss-flat-head-vertical-pattern-auto-parts/) Round Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.0012 – 0.0024**MOQ 1,000 pieces [![Hexagonal Body Rivet Nut with Zinc Plating](https://img.engineeringhardware.com/Hexagonal-Body-Rivet-Nut-with-Zinc-Plating.webp)](https://engineeringhardware.com/product/hexagonal-body-rivet-nut-with-zinc-plating/) Rivet Nuts & Threaded Rivet Inserts ### [Hexagonal Body Rivet Nut with Zinc Plating](https://engineeringhardware.com/product/hexagonal-body-rivet-nut-with-zinc-plating/) Hexagon Head · Steel **US$0.0012**MOQ 500 pieces [![M6 Rivet Nut River Flat Head Knurling Body Zp](https://img.engineeringhardware.com/M6-Rivet-Nut-River-Flat-Head-Knurling-Body-Zp.webp)](https://engineeringhardware.com/product/m6-rivet-nut-river-flat-head-knurling-body-zp/) Rivet Nuts & Threaded Rivet Inserts ### [M6 Rivet Nut River Flat Head Knurling Body Zp](https://engineeringhardware.com/product/m6-rivet-nut-river-flat-head-knurling-body-zp/) Round Head · DIN, ANSI, GB **US$0.006 – 0.0072**MOQ 1,000 pieces [![Brass Knurled Insert Wheel Clip Weld Threaded Insert Rivet Nut Lead-Free and RoHS Compliant, High Torque and Pull-out Resistance, Perfect for OEM Manufacturing](https://img.engineeringhardware.com/Brass-Knurled-Insert-Wheel-Clip-Weld-Threaded-Insert-Rivet-Nut-Lead-Free-and-RoHS-Compliant-High-Torque-and-Pull-out-Resistance-Perfect-for-OEM-Manufacturing.webp)](https://engineeringhardware.com/product/brass-knurled-insert-wheel-clip-weld-threaded-insert-rivet-nut-lead-free-and-rohs/) Rivet Nuts & Threaded Rivet Inserts ### [Brass Knurled Insert Wheel Clip Weld Threaded Insert Rivet Nut Lead-Free and RoHS Compliant, High Torque and Pull-out Resistance, Perfect for OEM Manufacturing](https://engineeringhardware.com/product/brass-knurled-insert-wheel-clip-weld-threaded-insert-rivet-nut-lead-free-and-rohs/) Round Head · Customized **US$0.60**MOQ 10,000 pieces [![Free Sample Carbon Steel & Stainless Flat Head Knurled Body Open-End Rivet Nut](https://img.engineeringhardware.com/Free-Sample-Carbon-Steel-Stainless-Flat-Head-Knurled-Body-Open-End-Rivet-Nut-2.webp)](https://engineeringhardware.com/product/free-sample-carbon-steel-stainless-flat-head-knurled-body-open-end-rivet-nut-2/) Rivet Nuts & Threaded Rivet Inserts ### [Free Sample Carbon Steel & Stainless Flat Head Knurled Body Open-End Rivet Nut](https://engineeringhardware.com/product/free-sample-carbon-steel-stainless-flat-head-knurled-body-open-end-rivet-nut-2/) Flat Head · DIN **US$0.0108 – 1.20**MOQ 10,000 pieces [![Free Sample Carbon Steel & Stainless Flat Head Knurled Body Open-End Rivet Nut](https://img.engineeringhardware.com/Free-Sample-Carbon-Steel-Stainless-Flat-Head-Knurled-Body-Open-End-Rivet-Nut.webp)](https://engineeringhardware.com/product/free-sample-carbon-steel-stainless-flat-head-knurled-body-open-end-rivet-nut/) Rivet Nuts & Threaded Rivet Inserts ### [Free Sample Carbon Steel & Stainless Flat Head Knurled Body Open-End Rivet Nut](https://engineeringhardware.com/product/free-sample-carbon-steel-stainless-flat-head-knurled-body-open-end-rivet-nut/) Rivet Nut · DIN **US$0.0084 – 0.19**MOQ 1,000 pieces [![Weld Nuts /Welding Rivet Nut/ Hexagon Weld Nuts with Flange/ Prevailing Torque Type All-Metal Hexagon Nuts with Flange, Style 2-Product Grades a and B](https://img.engineeringhardware.com/Weld-Nuts-Welding-Rivet-Nut-Hexagon-Weld-Nuts-with-Flange-Prevailing-Torque-Type-All-Metal-Hexagon-Nuts-with-Flange-Style-2-Product-Grades-a-and-B.webp)](https://engineeringhardware.com/product/weld-nuts-welding-rivet-nut-hexagon-weld-nuts-with-flange-prevailing-torque-type-all/) Rivet Nuts & Threaded Rivet Inserts ### [Weld Nuts /Welding Rivet Nut/ Hexagon Weld Nuts with Flange/ Prevailing Torque Type All-Metal Hexagon Nuts with Flange, Style 2-Product Grades a and B](https://engineeringhardware.com/product/weld-nuts-welding-rivet-nut-hexagon-weld-nuts-with-flange-prevailing-torque-type-all/) Weld Nuts · DIN, ANSI, GB **US$0.12**MOQ 50,000 pieces **US$0.0012 – 0.006**MOQ 1,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Wholesale%20Stainless%20Steel%20304%20Barrel%20Rivet%20Nut%20Flat%20Round%20Head%20M4%20Socket%20Connector%20Bolt%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fwholesale-stainless-steel-304-barrel-rivet-nut-flat-round-head-m4-socket-connector%2F)