--- title: "ASTM A193 B7 A320 L7 Double End Stud Bolt" description: "ASTM A193 B7 A320 L7 Double End Stud Bolt — Double-End & Tap-End Studs. Material: Alloy Steel, Carbon Steel, Grade: B7 B7m L7 L7m. MOQ 10,000 pieces, US$0.12." url: https://engineeringhardware.com/product/astm-a193-b7-a320-l7-double-end-stud-bolt/ source: Engineering Hardware & Fasteners --- # ASTM A193 B7 A320 L7 Double End Stud Bolt [![ASTM A193 B7 A320 L7 Double End Stud Bolt](https://img.engineeringhardware.com/ASTM-A193-B7-A320-L7-Double-End-Stud-Bolt.webp)](https://img.engineeringhardware.com/ASTM-A193-B7-A320-L7-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/astm-a193-b7-a320-l7-double-end-stud-bolt.md) US$0.12 / piece MOQ 10,000 pieces · Final price confirmed in your quote - **Material:** Alloy Steel, Carbon Steel - **Head Style:** Round - **Standard:** DIN, ANSI, GB, JIS, BSW, GOST - **Grade:** B7 B7m L7 L7m - **Finish:** Color-Zinc Plated - **Customize:** Yes - **Special Size:** Yes - **Package Size:** 26.00cm * 26.00cm * 10.00cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20ASTM%20A193%20B7%20A320%20L7%20Double%20End%20Stud%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fastm-a193-b7-a320-l7-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 | Customization | Available | | --- | --- | | Material | Alloy Steel, Carbon Steel | | Type | Thread Rods | | Connection | Common Bolt | | Head Style | Round | | Standard | DIN, ANSI, GB, JIS, BSW, GOST | | Grade | B7 B7m L7 L7m | | Application | Machinery, Chemical Industry, Environmental, Building | | Finish | Color-Zinc Plated | | Customize | Yes | | OEM ODM | Yes | | Special Size | Yes | | Transport Package | Carton and Pallet | | Specification | 1/4''-4'', 1/4''-2 1/2'', M6-M100 | | Origin | Shanghai | | HS Code | 7318150090 | | Production Capacity | 1400000000 Piece/Pieces Per Day | | Package Size | 26.00cm * 26.00cm * 10.00cm | | Package Gross Weight | 21.000kg | | Other Instructions | Fasteners are widely used in various buildings, machine parts, furniture, power accessories, telephones, etc. | | Category | [Double-End & Tap-End Studs](https://engineeringhardware.com/fastener-products/threaded-rods-studs/double-end-tap-end-studs/) | ## Technical parameters | Product Name | ASME B18.2.1 ASTM A193 B7 B7m L7 L7m Double End Stud Bolt | | --- | --- | | Standard | ASTM A193,ASTM A194,ASTM A320,DIN939/938/975/936 | | Material | Carbon Steel,Stainless Steel,Alloy Steel,Brass and etc. | | Surface Finish | Plain,Zinc Plated(Clear/Blue/Yellow/Black),Black Oxide,Nickel,Chrome,H.D.G.and etc. | | Size | 1/4''-4'',1/4''-2 1/2'',M6-M100 | ## Description ASTM A193 B7 A320 L7 Double End Stud Bolt is part of our double-end & tap-end studs range (Threaded Rods & Studs). ### Key details - **Type:** Thread Rods - **Standard:** DIN, ANSI, GB, JIS, BSW, GOST - **Material:** Alloy Steel, Carbon Steel - **Grade:** B7 B7m L7 L7m - **Head Style:** Round - **Finish:** Color-Zinc Plated - **Connection:** Common Bolt - **Application:** Machinery, Chemical Industry, Environmental, Building Available configurations include material, head style, standard, grade and finish. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 10,000 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 ASTM A193 B7 A320 L7 Double End Stud Bolt? The listed minimum order is 10,000 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 ASTM A193 B7 A320 L7 Double End Stud Bolt? Type: Thread Rods; Standard: DIN, ANSI, GB, JIS, BSW, GOST; Material: Alloy Steel, Carbon Steel; Grade: B7 B7m L7 L7m; Head Style: Round; Finish: Color-Zinc Plated. 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 finish. 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/) [![IATF16949 Accredited Stud Bolt for Automotive Spot Welding Applications](https://img.engineeringhardware.com/IATF16949-Accredited-Stud-Bolt-for-Automotive-Spot-Welding-Applications.webp)](https://engineeringhardware.com/product/iatf16949-accredited-stud-bolt-for-automotive-spot-welding-applications/) Double-End & Tap-End Studs ### [IATF16949 Accredited Stud Bolt for Automotive Spot Welding Applications](https://engineeringhardware.com/product/iatf16949-accredited-stud-bolt-for-automotive-spot-welding-applications/) Auto Fasteners · DIN, GB, ISO, ANSI/ASTM, BS, Bsw, JIS etc. **US$0.048 – 0.06**MOQ 20,000 pieces [![M8 M10 High Strength Black Oxide Galvanized Stainless Steel Full Thread Whole Stud Bolt Screw Threaded 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