--- title: "API Black DIN 939 Double End Stud Bolt Threaded Rod All Grade" description: "API Black DIN 939 Double End Stud Bolt Threaded Rod All Grade — Double-End & Tap-End Studs. MOQ 1,000 pieces, US$0.18." url: https://engineeringhardware.com/product/api-black-din-939-double-end-stud-bolt-threaded-rod-all-grade/ source: Engineering Hardware & Fasteners --- # API Black DIN 939 Double End Stud Bolt Threaded Rod All Grade [![API Black DIN 939 Double End Stud Bolt Threaded Rod All Grade](https://img.engineeringhardware.com/API-Black-DIN-939-Double-End-Stud-Bolt-Threaded-Rod-All-Grade.webp)](https://img.engineeringhardware.com/API-Black-DIN-939-Double-End-Stud-Bolt-Threaded-Rod-All-Grade.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/api-black-din-939-double-end-stud-bolt-threaded-rod-all-grade.md) Model no. **DIN 939** US$0.18 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel - **Surface Finishing:** Black - **Grade:** B7, B7m, L7, L7m, B16 - **Customized:** Customized - **Coating:** Black - **Package Size:** 113.00cm * 86.00cm * 56.00cm - **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%20API%20Black%20DIN%20939%20Double%20End%20Stud%20Bolt%20Threaded%20Rod%20All%20Grade%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fapi-black-din-939-double-end-stud-bolt-threaded-rod-all-grade%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 | | Surface Finishing | Black | | Model NO. | DIN 939 | | Grade | B7, B7m, L7, L7m, B16 | | Certification | ISO | | Customized | Customized | | Payment | T/T,L/C,D/P | | Sample | Contact Us | | Coating | Black | | Class | B7, B7m, L7, L7m, B16 | | Used | Machinery Assembly, Oil & Gas Projects, Structural | | Transport Package | 25kg/Carton, 36carton/Pallet | | Specification | 1/2"-4" | | Origin | Ningbo | | HS Code | 7318151001 | | Production Capacity | 1000ton /Month | | Package Size | 113.00cm * 86.00cm * 56.00cm | | Package Gross Weight | 900.000kg | | 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 | API Black DIN 939 Double End Stud Bolt Threaded Rod All Grade | | --- | --- | | Size | 1/2"-4" | | Grade | B7, B7M, L7, L7M, B16 | | Surface finishing | BLACK | ## Description API Black DIN 939 Double End Stud Bolt Threaded Rod All Grade is part of our double-end & tap-end studs range (Threaded Rods & Studs). ### Key details - **Material:** Carbon Steel - **Grade:** B7, B7m, L7, L7m, B16 - **Certification:** ISO - **Surface Finishing:** Black - **Coating:** Black - **Class:** B7, B7m, L7, L7m, B16 - **Used:** Machinery Assembly, Oil & Gas Projects, Structural - **Pre-production:** Dimensional checks on samples Available configurations include material, surface finishing, grade, customized and coating. 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$0.18 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 API Black DIN 939 Double End Stud Bolt Threaded Rod All Grade? The listed minimum order is 1,000 pieces, at US$0.18 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 API Black DIN 939 Double End Stud Bolt Threaded Rod All Grade? Material: Carbon Steel; Grade: B7, B7m, L7, L7m, B16; Certification: ISO; Surface Finishing: Black; Coating: Black; Class: B7, B7m, L7, L7m, B16. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, surface finishing, grade, customized and coating. 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/) [![HDG Double Head Stud Bolt Wind Power Flange Mounting Stud Bolt with Washers](https://img.engineeringhardware.com/HDG-Double-Head-Stud-Bolt-Wind-Power-Flange-Mounting-Stud-Bolt-with-Washers.webp)](https://engineeringhardware.com/product/hdg-double-head-stud-bolt-wind-power-flange-mounting-stud-bolt-with-washers/) Double-End & Tap-End Studs ### [HDG Double Head Stud Bolt Wind Power Flange Mounting Stud Bolt with Washers](https://engineeringhardware.com/product/hdg-double-head-stud-bolt-wind-power-flange-mounting-stud-bolt-with-washers/) DIN/ISO/ASTM/ANSI/BS/En · Carbon Steel, Alloy Steel, Stainless Steel,… **US$0.012 – 0.72**MOQ 2,000 pieces [![B7 Stud Bolt M36 /Double End Studs /Black Stud Bolts](https://img.engineeringhardware.com/B7-Stud-Bolt-M36-Double-End-Studs-Black-Stud-Bolts.webp)](https://engineeringhardware.com/product/b7-stud-bolt-m36-double-end-studs-black-stud-bolts/) Double-End & Tap-End Studs ### [B7 Stud Bolt M36 /Double End Studs /Black Stud Bolts](https://engineeringhardware.com/product/b7-stud-bolt-m36-double-end-studs-black-stud-bolts/) DIN,ASTM/ANSI JIS EN ISO,AS,GB · Carbon Steel **US$0.12 – 0.42**MOQ 1,000 pieces [![Professional Design ASME B18.2.2 Unc Unf Stainless Steel Threaded Rod Stud Bolt](https://img.engineeringhardware.com/Professional-Design-ASME-B18-2-2-Unc-Unf-Stainless-Steel-Threaded-Rod-Stud-Bolt.webp)](https://engineeringhardware.com/product/professional-design-asme-b18-2-2-unc-unf-stainless-steel-threaded-rod-stud-bolt/) Double-End & Tap-End Studs ### [Professional Design ASME B18.2.2 Unc Unf Stainless Steel Threaded Rod Stud Bolt](https://engineeringhardware.com/product/professional-design-asme-b18-2-2-unc-unf-stainless-steel-threaded-rod-stud-bolt/) ASME B18.31/ASME B1.1/ DIN975/DIN976 · Stainless Steel **US$0.012 – 0.036**MOQ 100 pieces [![Factory Price China Standard Component Size 190f 188f Muffler Stud Bolt Screw](https://img.engineeringhardware.com/Factory-Price-China-Standard-Component-Size-190f-188f-Muffler-Stud-Bolt-Screw.webp)](https://engineeringhardware.com/product/factory-price-china-standard-component-size-190f-188f-muffler-stud-bolt-screw/) Double-End & Tap-End Studs ### [Factory Price China Standard Component Size 190f 188f Muffler Stud Bolt Screw](https://engineeringhardware.com/product/factory-price-china-standard-component-size-190f-188f-muffler-stud-bolt-screw/) 173f Muffler Bolt Screw · Iron **US$0.72 – 1.44**MOQ 100 pieces [![Custom Manufacture RC Titanium Stainless Steel and Carbon Steel Ball Stud Bolt](https://img.engineeringhardware.com/Custom-Manufacture-RC-Titanium-Stainless-Steel-and-Carbon-Steel-Ball-Stud-Bolt.webp)](https://engineeringhardware.com/product/custom-manufacture-rc-titanium-stainless-steel-and-carbon-steel-ball-stud-bolt/) Double-End & Tap-End Studs ### [Custom Manufacture RC Titanium Stainless Steel and Carbon Steel Ball Stud Bolt](https://engineeringhardware.com/product/custom-manufacture-rc-titanium-stainless-steel-and-carbon-steel-ball-stud-bolt/) Round Head · DIN, ANSI, GB, JIS, BSW, GOST **US$0.012 – 0.34**MOQ 1,000 pieces [![OEM Q1231670 M16 Double Thread Stud Bolt 8.8 Grade Zinc Plated Fastening Stud](https://img.engineeringhardware.com/OEM-Q1231670-M16-Double-Thread-Stud-Bolt-8-8-Grade-Zinc-Plated-Fastening-Stud.webp)](https://engineeringhardware.com/product/oem-q1231670-m16-double-thread-stud-bolt-8-8-grade-zinc-plated-fastening-stud/) Double-End & Tap-End Studs ### [OEM Q1231670 M16 Double Thread Stud Bolt 8.8 Grade Zinc Plated Fastening Stud](https://engineeringhardware.com/product/oem-q1231670-m16-double-thread-stud-bolt-8-8-grade-zinc-plated-fastening-stud/) 45# Medium Carbon Steel · Zinc Plating & Passivation **US$0.53 – 0.89**MOQ 1 piece [![China Fasteners ASME B18.2.1 A193 B7 B7m B16 A320 L7 L7m A194 2h Gr. 7 Fastener PTFE Stud Bolt with 2h Heavy Nuts](https://img.engineeringhardware.com/China-Fasteners-ASME-B18-2-1-A193-B7-B7m-B16-A320-L7-L7m-A194-2h-Gr-7-Fastener-PTFE-Stud-Bolt-with-2h-Heavy-Nuts.webp)](https://engineeringhardware.com/product/china-fasteners-asme-b18-2-1-a193-b7-b7m-b16-a320-l7-l7m-a194-2h-gr-7-fastener-ptfe/) Double-End & Tap-End Studs ### [China Fasteners ASME B18.2.1 A193 B7 B7m B16 A320 L7 L7m A194 2h Gr. 7 Fastener PTFE Stud Bolt with 2h Heavy Nuts](https://engineeringhardware.com/product/china-fasteners-asme-b18-2-1-a193-b7-b7m-b16-a320-l7-l7m-a194-2h-gr-7-fastener-ptfe/) Round Head · ASTM A193 **US$0.12**MOQ 1,000 pieces [![Fastener Single and Double End Threaded Stainless M8X50 Threaded Rods 6000 mm](https://img.engineeringhardware.com/Fastener-Single-and-Double-End-Threaded-Stainless-M8X50-Threaded-Rods-6000-mm.webp)](https://engineeringhardware.com/product/fastener-single-and-double-end-threaded-stainless-m8x50-threaded-rods-6000-mm/) Double-End & Tap-End Studs ### [Fastener Single and Double End Threaded Stainless M8X50 Threaded Rods 6000 mm](https://engineeringhardware.com/product/fastener-single-and-double-end-threaded-stainless-m8x50-threaded-rods-6000-mm/) Hexagon Head · DIN, ANSI, GB, JIS, BSW, GOST **US$0.012 – 0.06**MOQ 1,000 pieces **US$0.18**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%20API%20Black%20DIN%20939%20Double%20End%20Stud%20Bolt%20Threaded%20Rod%20All%20Grade%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fapi-black-din-939-double-end-stud-bolt-threaded-rod-all-grade%2F)