--- title: "Rounded Rectangular Wing Nut DIN 315 Butterfly Nut" description: "Rounded Rectangular Wing Nut DIN 315 Butterfly Nut — Wing & Thumb Nuts. Material: Brass, Grade: 4.8, 4.8. MOQ 1,000 pieces, US$0.012 – 0.12." url: https://engineeringhardware.com/product/rounded-rectangular-wing-nut-din-315-butterfly-nut/ source: Engineering Hardware & Fasteners --- # Rounded Rectangular Wing Nut DIN 315 Butterfly Nut [![Rounded Rectangular Wing Nut DIN 315 Butterfly Nut](https://img.engineeringhardware.com/Rounded-Rectangular-Wing-Nut-DIN-315-Butterfly-Nut.webp)](https://img.engineeringhardware.com/Rounded-Rectangular-Wing-Nut-DIN-315-Butterfly-Nut.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › Wing & Thumb Nuts](https://engineeringhardware.com/fastener-products/nuts/wing-thumb-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/rounded-rectangular-wing-nut-din-315-butterfly-nut.md) Model no. **DIN 315** | **US$0.12**1,000–9,999 pieces | **US$0.012**10,000+ pieces | | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Head Style:** Round - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW, DIN 315 - **Grade:** 4.8, 4.8 - **Size:** M3-M56 - **Package Size:** 113.00cm * 86.00cm * 58.00cm - **Material:** Brass - **Standard Terms:** FOB ,CIF, EXW Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Rounded%20Rectangular%20Wing%20Nut%20DIN%20315%20Butterfly%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Frounded-rectangular-wing-nut-din-315-butterfly-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 | Model NO. | DIN 315 | | --- | --- | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, ANSI, GB, JIS, GOST, BSW, DIN 315 | | Grade | 4.8, 4.8 | | Size | M3-M56 | | Sample | Contact Us | | Transport Package | 25kg/Carton, 36carton/Pallet | | Specification | M3-M56 | | Origin | Ningbo, China | | Production Capacity | 1000ton /Month | | Package Size | 113.00cm * 86.00cm * 58.00cm | | Package Gross Weight | 25.000kg | | Customization | Available | | Material | Brass | | Type | Round Head | | Shipping Cost | Contact the supplier about freight and estimated delivery time. | | Pre-production | Dimensional checks on samples | | Pre-shipment | Full batch inspection including | | Standard Terms | FOB ,CIF, EXW | | Payment Methods | SWIFT | | Category | [Wing & Thumb Nuts](https://engineeringhardware.com/fastener-products/nuts/wing-thumb-nuts/) | ## Technical parameters | Standard | Rounded Rectangular Wing nut DIN 315 Butterfly Nut | | --- | --- | | Size | M3-M56 | | Grade | 4.8 | | Surface finishing | Black,Z/P,HDG,PTFE | ## Description Rounded Rectangular Wing Nut DIN 315 Butterfly Nut is part of our wing & thumb nuts range (Nuts). ### Key details - **Type:** Round Head - **Standard:** DIN, ANSI, GB, JIS, GOST, BSW, DIN 315 - **Material:** Brass - **Grade:** 4.8, 4.8 - **Size:** M3-M56 - **Head Style:** Round - **Connection:** Common Bolt - **Pre-production:** Dimensional checks on samples Available configurations include head style, standard, grade, size and package 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$0.012 – 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 Rounded Rectangular Wing Nut DIN 315 Butterfly Nut? The listed minimum order is 1,000 pieces, at US$0.012 – 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. ### How does the price change with quantity? Volume pricing: US$0.12 for 1,000–9,999 pieces; US$0.012 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Rounded Rectangular Wing Nut DIN 315 Butterfly Nut? Type: Round Head; Standard: DIN, ANSI, GB, JIS, GOST, BSW, DIN 315; Material: Brass; Grade: 4.8, 4.8; Size: M3-M56; Head Style: Round. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include head style, standard, grade, size and package 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 wing & thumb nuts are available? The Wing & Thumb Nuts category lists 1,646 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/wing-thumb-nuts/](https://engineeringhardware.com/fastener-products/nuts/wing-thumb-nuts/) 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/) ## 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