--- title: "ASTM A325 Heavy Hex Structural Bolt" description: "ASTM A325 Heavy Hex Structural Bolt — Structural & Heavy Hex Bolts. Material: Stainless Steel, Grade: A2 A4. MOQ 1 piece, US$0.012 – 0.12." url: https://engineeringhardware.com/product/astm-a325-heavy-hex-structural-bolt/ source: Engineering Hardware & Fasteners --- # ASTM A325 Heavy Hex Structural Bolt [![ASTM A325 Heavy Hex Structural Bolt](https://img.engineeringhardware.com/ASTM-A325-Heavy-Hex-Structural-Bolt.webp)](https://img.engineeringhardware.com/ASTM-A325-Heavy-Hex-Structural-Bolt.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Bolts › Structural & Heavy Hex Bolts](https://engineeringhardware.com/fastener-products/bolts/structural-heavy-hex-bolts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/astm-a325-heavy-hex-structural-bolt.md) US$0.012 – 0.12 / piece MOQ 1 piece · Final price confirmed in your quote - **Material:** Stainless Steel - **Head Style:** Hexagonal - **Standard:** DIN, ANSI, GB, JIS, BSW, GOST - **Grade:** A2 A4 - **Other Material:** Carbon Steel 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%20A325%20Heavy%20Hex%20Structural%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fastm-a325-heavy-hex-structural-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 | Stainless Steel | | Type | Hexagon Head | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, ANSI, GB, JIS, BSW, GOST | | Grade | A2 A4 | | Capacity | 300tons/Month | | Other Material | Carbon Steel | | Transport Package | Pallet | | Specification | M3-M24 | | Origin | China | | HS Code | 7318159090 | | Production Capacity | 300tons/Month | | Category | [Structural & Heavy Hex Bolts](https://engineeringhardware.com/fastener-products/bolts/structural-heavy-hex-bolts/) | ## Technical parameters | Items | Hex Flange Nut/ Hex Nut/Nylon Insert Nut/Rivet Nut/Wing Nut/Spring Nut/Square Nut...... | | --- | --- | | Material | Stainless Steel A2 A4 A8/Carbon Steel/Brass/Alloy Steel | | Grade | A2-70 A2-80 A4-70 A4-80 A8; Class 4/5/6/8/10/12;Grade 2/5/8 | | Standard | DIN;ISO;ASME;GB;BS;IFI;GOST....and customized | | Surface | Black;Zinc Plate;Dacromet;Ruspert;Magni;Zinc-Nickel;Plain;HDG | | Package | Box;Plastic Bag;Plastic Bucket;Blister Box;Pallet Carton... | | Sample | Available | | EU CBAM | Available | | Items | U Bolt/Hex Flange Bolt/ Hex bolt/Hammer Bolt/Socket Bolt/Carriage Bolt/Hanger Bolt/Wing Bolt/Eye bolt/Weld bolt/Clinch Bolt/ Thread Bar/Thread Rod | | --- | --- | | Material | Stainless Steel A2 A4 A8/Carbon Steel/Brass/Alloy Steel | | Grade | A2-70 A2-80 A4-70 A4-80 A8; Class 4.6/4.8/5.6/6.8/8.8/10.9/12.9;Grade 2/5/8 | | Standard | DIN;ISO;ASME;GB;BS;IFI;GOST....and customized | | Surface | Black;Zinc Plate;Dacromet;Ruspert;Magni;Zinc-Nickel;Plain;HDG | | Package | Box;Plastic Bag;Plastic Bucket;Blister Box;Pallet Carton... | | Sample | Available | | EU CBAM | Available | | Items | Chipboard Screw/ Wood Scew/ Roofing Screw/Decking Screw/ Facade Screw/Drywall Screw/Set Screw/Drilling Screw/ Euro Screw/ Window Screw/ Bimetal | | --- | --- | | Material | Stainless Steel C1 A2 A4 /Carbon Steel/Brass/Alloy Steel | | Grade | A2-70 A2-80 A4-70 A4-80 | | Standard | DIN;ISO;ASME;GB;BS;IFI;GOST....and customized | | Surface | Black;Zinc Plate;Dacromet;Ruspert;Magni;Zinc-Nickel;Plain;HDG | | Package | Box;Plastic Bag;Plastic Bucket;Blister Box;Pallet Carton... | | Sample | Available | | EU CBAM | Available | ## Description ASTM A325 Heavy Hex Structural Bolt is part of our structural & heavy hex bolts range (Bolts). ### Key details - **Type:** Hexagon Head - **Standard:** DIN, ANSI, GB, JIS, BSW, GOST - **Material:** Stainless Steel - **Grade:** A2 A4 - **Head Style:** Hexagonal - **Connection:** Common Bolt - **Capacity:** 300tons/Month - **Other Material:** Carbon Steel Available configurations include material, head style, standard, grade and other material. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1 piece 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 ASTM A325 Heavy Hex Structural Bolt? The listed minimum order is 1 piece, 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. ### What are the main specifications of ASTM A325 Heavy Hex Structural Bolt? Type: Hexagon Head; Standard: DIN, ANSI, GB, JIS, BSW, GOST; Material: Stainless Steel; Grade: A2 A4; Head Style: Hexagonal; 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 other material. 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 structural & heavy hex bolts are available? The Structural & Heavy Hex Bolts category lists 2,565 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/bolts/structural-heavy-hex-bolts/](https://engineeringhardware.com/fastener-products/bolts/structural-heavy-hex-bolts/) 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 Structural & Heavy Hex Bolts →](https://engineeringhardware.com/fastener-products/bolts/structural-heavy-hex-bolts/) [![Grade 10.9 Heavy Hex Structural Bolts ASTM A325 ASTM A490, Hexagon Structure Bolts ASME B18.2.6 M12-M36](https://img.engineeringhardware.com/Grade-10-9-Heavy-Hex-Structural-Bolts-ASTM-A325-ASTM-A490-Hexagon-Structure-Bolts-ASME-B18-2-6-M12-M36.webp)](https://engineeringhardware.com/product/grade-10-9-heavy-hex-structural-bolts-astm-a325-astm-a490-hexagon-structure-bolts/) Structural & Heavy Hex Bolts ### [Grade 10.9 Heavy Hex Structural Bolts ASTM A325 ASTM A490, Hexagon Structure Bolts ASME B18.2.6 M12-M36](https://engineeringhardware.com/product/grade-10-9-heavy-hex-structural-bolts-astm-a325-astm-a490-hexagon-structure-bolts/) Hexagon Head · DIN, ANSI, GB, JIS, BSW **US$0.12**MOQ 1 piece [![High Strength Titanium Bolt and Nut Hex Bolt Gr5 Titanium 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