--- title: "Type 22cr Duplex S31803/S32205 Double End Stud Bolt" description: "Type 22cr Duplex S31803/S32205 Double End Stud Bolt — Double-End & Tap-End Studs. Material: Stainless Steel. MOQ 1,000 pieces, US$0.60." url: https://engineeringhardware.com/product/type-22cr-duplex-s31803-s32205-double-end-stud-bolt/ source: Engineering Hardware & Fasteners --- # Type 22cr Duplex S31803/S32205 Double End Stud Bolt [![Type 22cr Duplex S31803/S32205 Double End Stud Bolt](https://img.engineeringhardware.com/Type-22cr-Duplex-S31803-S32205-Double-End-Stud-Bolt.webp)](https://img.engineeringhardware.com/Type-22cr-Duplex-S31803-S32205-Double-End-Stud-Bolt.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Threaded Rods & Studs › Double-End & Tap-End Studs](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/type-22cr-duplex-s31803-s32205-double-end-stud-bolt.md) Model no. **Type 22cr Duplex S31803/S32205** US$0.60 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Grade:** B8, B8a, B8m, B8ma, B6,660 - **Customized:** Customized - **Head Style:** Round - **Coating:** Plain - **Package Size:** 113.00cm * 86.00cm * 56.00cm - **Material:** Stainless Steel - **Surface Finishing:** Plain - **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%20Type%2022cr%20Duplex%20S31803%2FS32205%20Double%20End%20Stud%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Ftype-22cr-duplex-s31803-s32205-double-end-stud-bolt%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. | Type 22cr Duplex S31803/S32205 | | --- | --- | | Grade | B8, B8a, B8m, B8ma, B6,660 | | Certification | ISO | | Customized | Customized | | Connection | Common Bolt | | Head Style | Round | | Payment | T/T,L/C,D/P | | Sample | Contact Us | | Coating | Plain | | Used | Machinery Assembly, Oil & Gas Projects, Structural | | Class | B8, B8a, B8m, B8ma, B6,660 | | Transport Package | 25kg/Carton, 36carton/Pallet | | Specification | 1/2"-4" | | Origin | Ningbo, China | | HS Code | 7318151001 | | Production Capacity | 1000ton /Month | | Package Size | 113.00cm * 86.00cm * 56.00cm | | Package Gross Weight | 900.000kg | | Customization | Available | | Material | Stainless Steel | | Surface Finishing | Plain | | 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 TT transfer, D/P, LC at sight (negotiable for bulk orders) | | Category | [Double-End & Tap-End Studs](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) | ## Technical parameters | Standard | Type 22cr Duplex S31803/S32205 Double End Stud Bolt | | --- | --- | | Size | 1/2"-4" | | Grade | B8, B8A, B8M, B8MA, B6,660 | | Surface finishing | PLAIN | ## Description Type 22cr Duplex S31803/S32205 Double End Stud Bolt is part of our double-end & tap-end studs range (Threaded Rods & Studs). ### Key details - **Material:** Stainless Steel - **Grade:** B8, B8a, B8m, B8ma, B6,660 - **Head Style:** Round - **Connection:** Common Bolt - **Certification:** ISO - **Coating:** Plain - **Used:** Machinery Assembly, Oil & Gas Projects, Structural - **Class:** B8, B8a, B8m, B8ma, B6,660 Available configurations include grade, customized, head style, coating 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$0.60 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 Type 22cr Duplex S31803/S32205 Double End Stud Bolt? The listed minimum order is 1,000 pieces, at US$0.60 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 Type 22cr Duplex S31803/S32205 Double End Stud Bolt? Material: Stainless Steel; Grade: B8, B8a, B8m, B8ma, B6,660; Head Style: Round; Connection: Common Bolt; Certification: ISO; Coating: Plain. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include grade, customized, head style, coating 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 double-end & tap-end studs are available? The Double-End & Tap-End Studs category lists 3,053 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) 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 Double-End & Tap-End Studs →](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) [![ASTM A320 A320m Grade Gr L7 L7m L43 L70 L7a L71 L7b L72 L7c L73 L1 M16 M20 Thread Rod Stud Bolt with 2 Heavy Hex Nuts](https://img.engineeringhardware.com/ASTM-A320-A320m-Grade-Gr-L7-L7m-L43-L70-L7a-L71-L7b-L72-L7c-L73-L1-M16-M20-Thread-Rod-Stud-Bolt-with-2-Heavy-Hex-Nuts.webp)](https://engineeringhardware.com/product/astm-a320-a320m-grade-gr-l7-l7m-l43-l70-l7a-l71-l7b-l72-l7c-l73-l1-m16-m20-thread/) Double-End & Tap-End Studs ### [ASTM A320 A320m Grade Gr L7 L7m L43 L70 L7a L71 L7b L72 L7c L73 L1 M16 M20 Thread Rod Stud Bolt with 2 Heavy Hex Nuts](https://engineeringhardware.com/product/astm-a320-a320m-grade-gr-l7-l7m-l43-l70-l7a-l71-l7b-l72-l7c-l73-l1-m16-m20-thread/) Stainless Steel · L7 L7m L43 L70 L7a L71 L7b L72 L7c L73 L1 **US$0.012 – 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