--- title: "High-Strength 20mnsi Grouting Anchor Bolt for Foundation Stability" description: "High-Strength 20mnsi Grouting Anchor Bolt for Foundation Stability — Foundation & Anchor Bolts. MOQ 100 pieces, US$1.80 – 3.60." url: https://engineeringhardware.com/product/high-strength-20mnsi-grouting-anchor-bolt-for-foundation-stability/ source: Engineering Hardware & Fasteners --- # High-Strength 20mnsi Grouting Anchor Bolt for Foundation Stability [![High-Strength 20mnsi Grouting Anchor Bolt for Foundation Stability](https://img.engineeringhardware.com/High-Strength-20mnsi-Grouting-Anchor-Bolt-for-Foundation-Stability.webp)](https://img.engineeringhardware.com/High-Strength-20mnsi-Grouting-Anchor-Bolt-for-Foundation-Stability.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/high-strength-20mnsi-grouting-anchor-bolt-for-foundation-stability.md) Model no. **hollow anchor bolt** | **US$3.60**100–4,999 pieces | **US$2.40**5,000–9,999 pieces | **US$1.80**10,000+ pieces | | --- | --- | --- | MOQ 100 pieces · Final price confirmed in your quote - **Standard:** BS, GB, ASTM - **Surface Treatment:** Without Processing - **Material:** Carbon Steel - **Color:** Silver, Black, Gray - **Surface:** Antirust Coating or Zinc Plating - **Length:** Custom Length - **Package Size:** 20.00cm * 10.00cm * 5.00cm Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20High-Strength%2020mnsi%20Grouting%20Anchor%20Bolt%20for%20Foundation%20Stability%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fhigh-strength-20mnsi-grouting-anchor-bolt-for-foundation-stability%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 | After Received 1 Year | | Warranty | After Received 1 Year | | Model NO. | hollow anchor bolt | | Certification | CE, RoHS, ISO 9001:2000, ISO 9001:2008, SGS | | Standard | BS, GB, ASTM | | Surface Treatment | Without Processing | | Manufacturing Process | Forging | | Material | Carbon Steel | | Color | Silver, Black, Gray | | Surface | Antirust Coating or Zinc Plating | | Installation Method | Pre-Stressed Anchor,Traction Bolt,Grouted Rock Bol | | Length | Custom Length | | Delivery Time | 15-30days | | Sample | Availabe | | Transport Package | Standard Seaworthy Packing | | Specification | R25 R32 R38 R51 | | Origin | Handan China | | HS Code | 7308400100 | | Production Capacity | 300000tons/Year | | Package Size | 20.00cm * 10.00cm * 5.00cm | | Package Gross Weight | 1.500kg | | Features of Hollow Grouting Anchor Bar | • Fits standard Boomer, ROC and Mustang rigs. | | Advantages and Characteristics | 1.No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes. | | Our enterprise vision is | casting industry famous brand, building industrial and mining leading enterprises. | | Accepted Delivery Terms | FOB; | | Accepted Payment Currency | USD; | | Accepted Payment Type | T/T,L/C,D/P D/A; | | Language Spoken | English,Chinese | | Category | [Foundation & Anchor Bolts](https://engineeringhardware.com/fastener-products/anchors-construction-fixings/foundation-anchor-bolts/) | ## Technical parameters | BAR DIAMETER | AVERAGE INNER DIAMETER | MINIMUM NET AREA THROUGH THREADS | MINIMUM ULTIMATE STRENGTH | MINIMUM YIELD STRENGTH | NOMINAL WEIGHT | PART NUMBER | | --- | --- | --- | --- | --- | --- | --- | | 32 mm (1-1/4") | 0.787" (20.0 mm) | 0.556 in² (359 mm²) | 58.4 kips (260 kN) | 47.2 kips (210 kN) | 2.1 lbs/ft (3.1 kg/m) | B7X1-032N | | 32S mm (1-1/4") | 0.626" (15.9 mm) | 0.776 in² (501 mm²) | 81.5 kips (363 kN) | 66.0 kips (294 kN) | 2.7 lbs/ft (4.0 kg/m) | B7X1-032S | | 38 mm (1-1/2") | 0.830" (21.1 mm) | 1.067 in² (688 mm²) | 112 kips (498 kN) | 90.7 kips (404 kN) | 3.76 lbs/ft (5.6 kg/m) | B7X1-038N | | 51 mm (2") | 1.187" (30.1 mm) | 1.795 in² (1158 mm²) | 188 kips (837 kN) | 152 kips (677 kN) | 6.26 lbs/ft (9.3 kg/m) | B7X1-051N | | 76 mm (3") | 1.890" (48.0 mm) | 3.880 in² (2503 mm²) | 407 kips (1811 kN) | 329 kips (1466 kN) | 13.79 lbs/ft (20.5 kg/m) | B7X1-076N | | item | value | | --- | --- | | Color | silver, Black | | Finish | Bright(Uncoated), Longer Life TiCN | | System of Measurement | INCH, Metric | | Place of Origin | China | | | Hebei | | Model Number | hollow grout rock bolt | | Material | Steel | | Diameter | 12mm | | Capacity | Strong | | Standard | GB | | Product name | Hollow Grout Rock Bolt | | Length | Customized Length | | Sample | Availabe | | Raw Material | Steel | | Application | Mining | | Feature | Easy Install | | Delivery time | 15-30days | | PAYMENT | 30% Deposit+70% Balance | | Quality | Excellent | ## Description High-Strength 20mnsi Grouting Anchor Bolt for Foundation Stability is part of our foundation & anchor bolts range (Anchors & Construction Fixings). ### Key details - **Standard:** BS, GB, ASTM - **Material:** Carbon Steel - **Length:** Custom Length - **Surface Treatment:** Without Processing - **Certification:** CE, RoHS, ISO 9001:2000, ISO 9001:2008, SGS - **Warranty:** After Received 1 Year - **Manufacturing Process:** Forging - **Color:** Silver, Black, Gray Available configurations include standard, surface treatment, material, color and surface. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 100 pieces at US$1.80 – 3.60 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 High-Strength 20mnsi Grouting Anchor Bolt for Foundation Stability? The listed minimum order is 100 pieces, at US$1.80 – 3.60 per piece. 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$3.60 for 100–4,999 pieces; US$2.40 for 5,000–9,999 pieces; US$1.80 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of High-Strength 20mnsi Grouting Anchor Bolt for Foundation Stability? Standard: BS, GB, ASTM; Material: Carbon Steel; Length: Custom Length; Surface Treatment: Without Processing; Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008, SGS; Warranty: After Received 1 Year. 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, color and surface. 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/) [![7/J/U/L/9/T Type Head Welding Plate Anchor Bolts Customize Size Foundation Bolt](https://img.engineeringhardware.com/7-J-U-L-9-T-Type-Head-Welding-Plate-Anchor-Bolts-Customize-Size-Foundation-Bolt.webp)](https://engineeringhardware.com/product/7-j-u-l-9-t-type-head-welding-plate-anchor-bolts-customize-size-foundation-bolt/) Foundation & Anchor Bolts ### [7/J/U/L/9/T Type Head Welding Plate Anchor Bolts Customize Size Foundation Bolt](https://engineeringhardware.com/product/7-j-u-l-9-t-type-head-welding-plate-anchor-bolts-customize-size-foundation-bolt/) Round Head · DIN, ANSI, GB, BSW **US$0.012 – 0.12**MOQ 1 piece [![J Type Anchor Bolt with L Shaped Anchor Bolt, Foundation Bolt Threaded Rods and Studsall Thread Rod and Studs B7 Studssingle and Double End Studs](https://img.engineeringhardware.com/J-Type-Anchor-Bolt-with-L-Shaped-Anchor-Bolt-Foundation-Bolt-Threaded-Rods-and-Studsall-Thread-Rod-and-Studs-B7-Studssingle-and-Double-End-Studs.webp)](https://engineeringhardware.com/product/j-type-anchor-bolt-with-l-shaped-anchor-bolt-foundation-bolt-threaded-rods-and/) Foundation & Anchor Bolts ### [J Type Anchor Bolt with L Shaped Anchor Bolt, Foundation Bolt Threaded Rods and Studsall Thread Rod and Studs B7 Studssingle and Double End Studs](https://engineeringhardware.com/product/j-type-anchor-bolt-with-l-shaped-anchor-bolt-foundation-bolt-threaded-rods-and/) Hexagon Head · ANSI, BSW, DIN, GB, JIS **US$0.12**MOQ 100 boxes [![Drop Forged Us Type G2130 Bow Type Anchor Bolt Shackle Lifting Steel Shackle G2130](https://img.engineeringhardware.com/Drop-Forged-Us-Type-G2130-Bow-Type-Anchor-Bolt-Shackle-Lifting-Steel-Shackle-G2130.webp)](https://engineeringhardware.com/product/drop-forged-us-type-g2130-bow-type-anchor-bolt-shackle-lifting-steel-shackle-g2130/) Foundation & Anchor Bolts ### [Drop Forged Us Type G2130 Bow Type Anchor Bolt Shackle Lifting Steel Shackle G2130](https://engineeringhardware.com/product/drop-forged-us-type-g2130-bow-type-anchor-bolt-shackle-lifting-steel-shackle-g2130/) Bow Shackle · Steel **US$0.23 – 0.24**MOQ 100 pieces [![Threaded Hollow Bar/Self Drilling Anchor Bolt for Soil Nail/Rock Bolt R38](https://img.engineeringhardware.com/Threaded-Hollow-Bar-Self-Drilling-Anchor-Bolt-for-Soil-Nail-Rock-Bolt-R38.webp)](https://engineeringhardware.com/product/threaded-hollow-bar-self-drilling-anchor-bolt-for-soil-nail-rock-bolt-r38/) Foundation & Anchor Bolts ### [Threaded Hollow Bar/Self Drilling Anchor Bolt for Soil Nail/Rock Bolt R38](https://engineeringhardware.com/product/threaded-hollow-bar-self-drilling-anchor-bolt-for-soil-nail-rock-bolt-r38/) Steel · Yes **US$3.60 – 24.00**MOQ 2,000 meters [![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 pieces [![Carbon Steel Four-Piece Fixing Bolts M12 X 60 Anchor Bolts](https://img.engineeringhardware.com/Carbon-Steel-Four-Piece-Fixing-Bolts-M12-X-60-Anchor-Bolts.webp)](https://engineeringhardware.com/product/carbon-steel-four-piece-fixing-bolts-m12-x-60-anchor-bolts/) Foundation & Anchor Bolts ### [Carbon Steel Four-Piece Fixing Bolts M12 X 60 Anchor Bolts](https://engineeringhardware.com/product/carbon-steel-four-piece-fixing-bolts-m12-x-60-anchor-bolts/) Carbon Steel · 8.8 **US$0.072 – 2.40**MOQ 10 pieces [![Maxdrill Hot Sale Self Drilling Tools R25 Anchor Bolt](https://img.engineeringhardware.com/Maxdrill-Hot-Sale-Self-Drilling-Tools-R25-Anchor-Bolt.webp)](https://engineeringhardware.com/product/maxdrill-hot-sale-self-drilling-tools-r25-anchor-bolt/) Foundation & Anchor Bolts ### [Maxdrill Hot Sale Self Drilling Tools R25 Anchor Bolt](https://engineeringhardware.com/product/maxdrill-hot-sale-self-drilling-tools-r25-anchor-bolt/) ISO9001:2015 · Alloy Steel/Carbon Steel **US$20.40 – 24.00**MOQ 1 piece [![R38 Steel Self Drilling Hollow Thread Grouted Rock Anchor Bolt](https://img.engineeringhardware.com/R38-Steel-Self-Drilling-Hollow-Thread-Grouted-Rock-Anchor-Bolt.webp)](https://engineeringhardware.com/product/r38-steel-self-drilling-hollow-thread-grouted-rock-anchor-bolt/) Foundation & Anchor Bolts ### [R38 Steel Self Drilling Hollow Thread Grouted Rock Anchor Bolt](https://engineeringhardware.com/product/r38-steel-self-drilling-hollow-thread-grouted-rock-anchor-bolt/) AISI, ASME, ANSI, JIS, GB · Carbon Steel, Alloy Steel **US$960.00 – 1,140**MOQ 1 ton **US$1.80 – 3.60**MOQ 100 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20High-Strength%2020mnsi%20Grouting%20Anchor%20Bolt%20for%20Foundation%20Stability%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fhigh-strength-20mnsi-grouting-anchor-bolt-for-foundation-stability%2F)