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Cheeron Grouting Rock Bolt Threaded Rod Hollow Anchor Bolts for Tunnel Support
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Anchors & Construction Fixings › Foundation & Anchor Bolts

Cheeron Grouting Rock Bolt Threaded Rod Hollow Anchor Bolts for Tunnel Support

Updated 2026-11-03 · Markdown version

Model no. 25-51mm

US$2.64500–4,999 pieces US$2.405,000–9,999 pieces US$2.1610,000+ pieces

MOQ 500 pieces · Final price confirmed in your quote

Surface Treatment
Without Processing
Material
S45c / 40cr/37mn
Size
25-51mm
Product Grade
S-Class
Package Size
10.00cm * 10.00cm * 10.00cm
Superior Structural Strength
Crafted from premium materials such as 45C, 40Cr, and 37Mn, our products comply with international standards and certifications, delivering reliable solutions for your anchoring needs.
Get a quote

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

CustomizationAvailable
After-sales Service1 Year
Warranty1 Year
Model NO.25-51mm
CertificationTest Report
Surface TreatmentWithout Processing
MaterialS45c / 40cr/37mn
Size25-51mm
ShapeRound Thread
Product GradeS-Class
InstallationEasy Installation
FunctionUsed to Connect Two Rebars End-to-End.
Transport PackageAccording to Customer Requirements
OriginChangzhou, Jiangsu
HS Code7318190000
Production Capacity50000000PCS/Year
Package Size10.00cm * 10.00cm * 10.00cm
Package Gross Weight10.000kg
Lead Time14 days (1 - 1000 Pieces) To be negotiated ( > 1000 Pieces)
Superior Structural StrengthCrafted from premium materials such as 45C, 40Cr, and 37Mn, our products comply with international standards and certifications, delivering reliable solutions for your anchoring needs.
Hollow DesignThe rod body features a hollow structure, serving as both a grouting pipe and vent pipe. This eliminates mortar loss caused by traditional grouting pipes being withdrawn. Ensures complete grout saturation and enables pressure grouting, enhancing construction quality.
Simple InstallationFeaturing coarse-pitch threads, the rod body enables faster nut installation while preventing thread damage that could cause misalignment. This facilitates straightforward fitting of washers and nuts.
Reliable SupportClassified as passive support anchors, pressure grouting through the hollow rod consolidates fractured rock, blocks groundwater ingress, and protects the rod body from corrosion. This rapidly establishes support force, controlling surrounding rock stability.
Extensive ApplicationsHollow grouting rock bolts have been successfully deployed in geotechnical anchoring projects across tunnel construction, slope stabilisation, excavation wall protection, and mining operations, yielding significant economic benefits.
ISO 140012015
ISO 90012015
ISO 450012018
Rebar CouplersThreaded (e. g. Standard straight-thread, rib-peeling straight-thread, Upset Forging, Taper threaded, Epoxy Coated, Split, Weldable rebar coupler) and non-threaded (e. g. Grouting, cold extrusion, bolted, quick-connect) couplers.
Rebar Processing EquipmentUpsetting machines, threading machines, and more.
Seamless Steel PipesStainless and carbon steel pipes.
Other Steel ProductsCSL Pipes, Hollow anchor rods, and rebar-related products.
CategoryFoundation & Anchor Bolts

Technical parameters

SpecificationDiameterThicknessYield StrengthTensile StrengthYield ForceMaximum ForceElongation After Fracture
25×525mm5mm325MPa490MPa≥102kN≥153KN≥21%
25×725mm7mm≥128kN≥193KN
28×5.528mm5.5mm≥126kN≥190KN
32×632mm6mm≥159kN≥240KN

Description

Cheeron Grouting Rock Bolt Threaded Rod Hollow Anchor Bolts for Tunnel Support is part of our foundation & anchor bolts range (Anchors & Construction Fixings).

Key details

  • Material: S45c / 40cr/37mn
  • Size: 25-51mm
  • Surface Treatment: Without Processing
  • Certification: Test Report
  • Warranty: 1 Year
  • Shape: Round Thread
  • Product Grade: S-Class
  • Installation: Easy Installation

Available configurations include surface treatment, material, size, product grade and package size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 500 pieces at US$2.16 – 2.64 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 Cheeron Grouting Rock Bolt Threaded Rod Hollow Anchor Bolts for Tunnel Support?

The listed minimum order is 500 pieces, at US$2.16 – 2.64 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$2.64 for 500–4,999 pieces; US$2.40 for 5,000–9,999 pieces; US$2.16 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 Cheeron Grouting Rock Bolt Threaded Rod Hollow Anchor Bolts for Tunnel Support?

Material: S45c / 40cr/37mn; Size: 25-51mm; Surface Treatment: Without Processing; Certification: Test Report; Warranty: 1 Year; Shape: Round Thread. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include surface treatment, material, size, product grade and package size. 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/

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
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US$2.16 – 2.64MOQ 500 piecesGet a quote