--- title: "Water Conservancy Self Drilling Hollow Grouting Anchor Bolt" description: "Water Conservancy Self Drilling Hollow Grouting Anchor Bolt — Foundation & Anchor Bolts. Material: Carbon Steel. MOQ 500 meters, US$1.74 – 2.34." url: https://engineeringhardware.com/product/water-conservancy-self-drilling-hollow-grouting-anchor-bolt/ source: Engineering Hardware & Fasteners --- # Water Conservancy Self Drilling Hollow Grouting Anchor Bolt [![Water Conservancy Self Drilling Hollow Grouting Anchor Bolt](https://img.engineeringhardware.com/Water-Conservancy-Self-Drilling-Hollow-Grouting-Anchor-Bolt.webp)](https://img.engineeringhardware.com/Water-Conservancy-Self-Drilling-Hollow-Grouting-Anchor-Bolt.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Anchors & Construction Fixings › Foundation & Anchor Bolts](https://engineeringhardware.com/fastener-products/anchors-construction-fixings/foundation-anchor-bolts/) Updated 2026-11-03 · [Markdown version](https://engineeringhardware.com/product/water-conservancy-self-drilling-hollow-grouting-anchor-bolt.md) Model no. **R25N/R32N/R32S/R32L** | **US$2.34**500–4,999 meters | **US$2.10**5,000–9,999 meters | **US$1.74**10,000+ meters | | --- | --- | --- | MOQ 500 meters · Final price confirmed in your quote - **Standard:** AISI, ASME, BS, ANSI, JIS, GB, GOST, ASTM, DIN - **Surface Treatment:** Oiled/Galvanized - **Material:** Carbon Steel - **Length:** Custom Length - **Diameter:** Custom Diameter - **Materials:** High Strength - **Surface:** Antirust Coating or Zinc Plating - **Thread size:** R25, R32, R38, R51, T76. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Water%20Conservancy%20Self%20Drilling%20Hollow%20Grouting%20Anchor%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fwater-conservancy-self-drilling-hollow-grouting-anchor-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 | | --- | --- | | After-sales Service | Can Exchange Goods | | Warranty | 2 Year | | Model NO. | R25N/R32N/R32S/R32L | | Certification | ISO 9001:2000, ISO 9001:2008 | | Standard | AISI, ASME, BS, ANSI, JIS, GB, GOST, ASTM, DIN | | Surface Treatment | Oiled/Galvanized | | Manufacturing Process | Hot Rolled | | Material | Carbon Steel | | Terms of Payment | 30%T/T Advance + 70% Balance | | Trade Terms | EXW Fob CFR CIF | | Place of Origin | China | | Length | Custom Length | | Diameter | Custom Diameter | | Materials | High Strength | | Surface | Antirust Coating or Zinc Plating | | Way to Install | According to Actual Engineering | | Installation Method | Pre-Stressed Anchor,Traction Bolt,Grouted Rock Bol | | Marking and Numbering | Custom | | Transport Package | Standard Seaworthy Packing | | Specification | 1/8''-24'' SCH40 SCH80 STD or customization | | Origin | Liaocheng Shandong | | HS Code | 7308 | | Production Capacity | 300000tons/Year | | Thread size | R25, R32, R38, R51, T76. | | Thread standard | ISO10208, ISO1720 etc. | | Category | [Foundation & Anchor Bolts](https://engineeringhardware.com/fastener-products/anchors-construction-fixings/foundation-anchor-bolts/) | ## Technical parameters | | R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Outside diameter(mm) | 25 | 32 | 32 | 38 | 51 | 51 | 76 | 76 | | Internal diameter(mm) | 14 | 19 | 16 | 19 | 36 | 33 | 52 | 45 | | Ultimate loadcapacity(KN) | 200 | 280 | 360 | 500 | 550 | 800 | 1600 | 1900 | | Yield loadcapacity(KN) | 150 | 230 | 280 | 400 | 450 | 630 | 1200 | 1500 | | Tensile strength,Rp0.2(N/mm2) | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | | Yield strength,Rp0.2(N/mm2) | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | | Weight (Kg/m) | 2.3 | 3.2 | 3.6 | 5.5 | 6.5 | 8.0 | 16.0 | 19.7 | | Thread type(left-hand) | ISO 10208 | ISO 1720 | MAI T76 Standard | | | | | | | Steel grade | En10083-1 (Alloy structure steel) | | | | | | | | | Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical. | | | | | | | | | | Bar Type | Outside Diameter(mm) | Inside Diameter(mm) | Cross section(mm2) | Ultimate LoadKN | Yield PointKN | Weight(kg/m) | Thread Left/Right Hand | | --- | --- | --- | --- | --- | --- | --- | --- | | 30/11 | 30 | 11 | 446 | 320 | 260 | 3.3 | Lift or right | | 30/14 | 30 | 14 | 395 | 260 | 220 | 2.9 | Lift or right | | 30/16 | 30 | 16 | 382 | 220 | 180 | 2.7 | Lift or right | | 40/16 | 40 | 16 | 879 | 660 | 525 | 7.0 | Lift or right | | 40/20 | 40 | 20 | 726 | 539 | 430 | 5.6 | Lift or right | | 52/26 | 52 | 26 | 1337 | 929 | 730 | 10.0 | Lift or right | | 73/53 | 73 | 53 | 1160 | 1630 | 970 | 12.3 | Lift or right | | 73/56 | 73 | 56 | 1094 | 1414 | 785 | 11.1 | Lift or right | | 73/45 | 73 | 45 | 2265 | 1630 | 1180 | 17.8 | Lift or right | ## Description Water Conservancy Self Drilling Hollow Grouting Anchor Bolt is part of our foundation & anchor bolts range (Anchors & Construction Fixings). ### Key details - **Standard:** AISI, ASME, BS, ANSI, JIS, GB, GOST, ASTM, DIN - **Material:** Carbon Steel - **Diameter:** Custom Diameter - **Thread size:** R25, R32, R38, R51, T76. - **Length:** Custom Length - **Surface Treatment:** Oiled/Galvanized - **Certification:** ISO 9001:2000, ISO 9001:2008 - **Warranty:** 2 Year Available configurations include standard, surface treatment, material, length and diameter. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 500 meters at US$1.74 – 2.34 per meter. 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 Water Conservancy Self Drilling Hollow Grouting Anchor Bolt? The listed minimum order is 500 meters, at US$1.74 – 2.34 per meter. 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$2.34 for 500–4,999 meters; US$2.10 for 5,000–9,999 meters; US$1.74 for 10,000+ meters. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Water Conservancy Self Drilling Hollow Grouting Anchor Bolt? Standard: AISI, ASME, BS, ANSI, JIS, GB, GOST, ASTM, DIN; Material: Carbon Steel; Diameter: Custom Diameter; Thread size: R25, R32, R38, R51, T76.; Length: Custom Length; Surface Treatment: Oiled/Galvanized. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include standard, surface treatment, material, length and diameter. 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 foundation & anchor bolts are available? The Foundation & Anchor Bolts category lists 2,223 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/anchors-construction-fixings/foundation-anchor-bolts/](https://engineeringhardware.com/fastener-products/anchors-construction-fixings/foundation-anchor-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 Foundation & Anchor Bolts →](https://engineeringhardware.com/fastener-products/anchors-construction-fixings/foundation-anchor-bolts/) [![8.8 Grade HDG 9 J L-Shaped Bolts/Concrete Insert Embedded Parts /L/J/U/I Shape Foundation Bolts Anchor Bolts](https://img.engineeringhardware.com/8-8-Grade-HDG-9-J-L-Shaped-Bolts-Concrete-Insert-Embedded-Parts-L-J-U-I-Shape-Foundation-Bolts-Anchor-Bolts.webp)](https://engineeringhardware.com/product/8-8-grade-hdg-9-j-l-shaped-bolts-concrete-insert-embedded-parts-l-j-u-i-shape/) Foundation & Anchor Bolts ### [8.8 Grade HDG 9 J L-Shaped Bolts/Concrete Insert Embedded Parts /L/J/U/I Shape Foundation Bolts Anchor Bolts](https://engineeringhardware.com/product/8-8-grade-hdg-9-j-l-shaped-bolts-concrete-insert-embedded-parts-l-j-u-i-shape/) 4.8 / 8.8 /10.9/12.9 · electric galvanized, hot galvanized, Dacro, bla… **US$0.60 – 6.00**MOQ 300 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