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Anchors & Construction Fixings › Foundation & Anchor Bolts

Supply Self Drilling Rock Anchor Bolt Using for Tunnel Support

Updated 2026-11-03 · Markdown version

Model no. METAL BAR

US$2.52 – 4.20 / piece

MOQ 1 piece · Final price confirmed in your quote

Finish: Black
Head Style: Round
Material: Stainless Steel
Outer Diameter: 38
Inner Diameter: 23
Ultimate Tensile Strength: 912
Yield Strength: 730
Package Size: 60.00cm * 30.00cm * 30.00cm

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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
Application	Machinery, Environmental, Building
Finish	Black
Model NO.	METAL BAR
Head Style	Round
Material	Stainless Steel
Type	Round Head
Outer Diameter	38
Inner Diameter	23
Area	548
Ultimate Tensile Load	500
Yield Load	400
Ultimate Tensile Strength	912
Yield Strength	730
Nominal Weight	4.2
Transport Package	Wooden
Specification	standard
Origin	China
Production Capacity	100000 Sets Per Month
Package Size	60.00cm * 30.00cm * 30.00cm
Package Gross Weight	24.000kg
Category	Foundation & Anchor Bolts

Technical parameters

Type	METAL BAR Diameter(mm)	anchoring KN
deformed steel bar 6s≥335MPa	φ22	>125
φ20	>105
φ18	>85
φ16	>75
round steel bar 6s≥235MPa	φ22	>90
φ20	>70
φ18	>60
φ16	>50

d	length
1400	1600	1800	2000	2200	2400	2600
φ16	-	+	+	+	-	-	-
φ18	-	+	+	+	+	-	-
φ20	-	-	+	+	+	+	-
φ22	-	-	-	+	+	+	+

	SPEC.	MATERIAL	BEARING CAPACITY (kn)	HIGH-STRENGTH PLATE(Spherical)
SIZE (mm)	BEARING CAPACITY (kn)	BORE DIAMETER (mm)
All-Thread Rebar Rock Bolt	DQ-16	HRB335	≥100	120×120×6	≥125	23
DQ-18	HRB335	≥125	120×120×8	≥170	23
DQ-20	HRB335	≥155	120×120×8	≥170	26
DQ-22	HRB335	≥185	150×150×8	≥220	26

Description

Supply Self Drilling Rock Anchor Bolt Using for Tunnel Support is part of our foundation & anchor bolts range (Anchors & Construction Fixings).

Key details

Type: Round Head
Material: Stainless Steel
Head Style: Round
Finish: Black
Application: Machinery, Environmental, Building
Outer Diameter: 38
Inner Diameter: 23
Area: 548

Available configurations include finish, head style, material, outer diameter and inner diameter. 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$2.52 – 4.20 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 Supply Self Drilling Rock Anchor Bolt Using for Tunnel Support?

The listed minimum order is 1 piece, at US$2.52 – 4.20 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 Supply Self Drilling Rock Anchor Bolt Using for Tunnel Support?

Type: Round Head; Material: Stainless Steel; Head Style: Round; Finish: Black; Application: Machinery, Environmental, Building; Outer Diameter: 38. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include finish, head style, material, outer diameter and inner 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/

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

More about us → · Request a sample or custom quote →

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US$2.52 – 4.20MOQ 1 pieceGet a quote WA