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Anchors & Construction Fixings › Foundation & Anchor Bolts

Special Heavy-Duty Anchor Bolts for Engineering Use

Updated 2026-11-03 · Markdown version

US$1.20 – 12.00 / piece

MOQ 1,000 pieces · Final price confirmed in your quote

Grade: 12.9
Head Style: Customization
Material: Alloy Steel
Standard: ANSI, BSW, DIN, GB, GOST
Other Materials: Carbon Steel / Stainless Steel 304/316 / Hot Galva
Surface Treatment: Electro-Galvanizing / Hot-DIP Galvanizing / Dacrom
Load-Bearing Grade: Heavy Load-Bearing Capacity / Super Heavy Load-Bea
Standard Type: National Standard GB / German Standard DIN / Inter

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

Grade	12.9
Head Style	Customization
Material	Alloy Steel
Standard	ANSI, BSW, DIN, GB, GOST
Type	Bonded Anchor Bolt
Other Materials	Carbon Steel / Stainless Steel 304/316 / Hot Galva
Surface Treatment	Electro-Galvanizing / Hot-DIP Galvanizing / Dacrom
Load-Bearing Grade	Heavy Load-Bearing Capacity / Super Heavy Load-Bea
Applicable Scenarios	Steel Structure / Curtain Wall / Foundation / Equi
Standard Type	National Standard GB / German Standard DIN / Inter
Anchor Fixation Method	Expanding Type / Chemical Tube Type / Self-Expandi
Product Grade	8.8 Grade / 10.9 Grade / 12.9 Grade High-Strength
Transport Package	Boxed
Specification	M12/M16/M20/M24/M30
Origin	China
HS Code	3926901000
Production Capacity	800PCS/H
Package Size	50.00cm * 35.00cm * 25.00cm
Package Gross Weight	15.000kg
Customization	Available
Application	Structural Steel Connections
Finish	Black Oxide
Shipping Cost	Contact the supplier about freight and estimated delivery time.
Delivery time	Regular specifications in stock take 3-5 days to ship, bulk customization takes 7-15 days, supporting sea, land, and air transportation;
Category	Foundation & Anchor Bolts

Technical parameters

Types of mechanical locking key anchors	Main characteristics of anchors	Formation of key principle	Scope of application	Analysis of Locking Key Anchoring Effect
LZK-A Self-Cutting Bottom-Enlarging Anchor Bolt	Anchor head locking key plateWelding diamond	Diamond continuous cuttingEnlarged hole	Important steel components are anchored to concrete for earthquake resistance.Impact resistant; suitable for installation in cracked concrete.	Continuous cutting and reaming results in high-quality reaming and fully opens the anchor bolt locking key plate.When there is reinforcing steel at the edge of the hole, the hole can be enlarged, making it the safest anchor bolt.
LZK-D Self-Cutting Bottom-Enlarging Anchor Bolt	Anchor head locking key plateWelding three carbide cutting tools	Carbide cutting tool for reaming	Important steel components are anchored to concrete for earthquake resistance.Impact resistant, suitable for installation in cracked concrete.	The hole enlargement quality is high, and the anchor bolt locking key plate is fully opened.However, when reinforcing bars are encountered at the edge of the hole, the hole-reaming drill bit has a poor hole-reaming effect, and the hole-reaming operation...The industry needs remedial measures.
LHK-A rear-expanded anchor bolt	Anchor head locking key plateAnti-slip grooves are provided	Using push-type reamingdrill bit reaming	Important steel components are anchored to concrete for earthquake resistance.Impact resistant, suitable for installation in cracked concrete.	The hole enlargement quality is high, and the anchor bolt locking key plate is fully opened.However, when reinforcing bars are encountered at the edge of the hole, the hole-reaming drill bit has a poor hole-reaming effect, and the hole-reaming operation...Remedial measures are needed.
LHK-B rear-expanded anchor bolt	Anchor head optimization designAdd ring-shaped cutting edge	Using push-type reamingdrill bit reaming	Important steel components are anchored to concrete for earthquake resistance.Impact resistant, suitable for installation in cracked concrete.	The hole enlargement quality is high, and the anchor bolt locking key plate is fully opened.However, when encountering reinforcing bars at the edge of the hole, the enlarging drill bit has poor hole-enlarging effect, requiring additional...The ring-shaped blade can still form a locking key.
LZQ type self-cutting anchor bolt	The anchor bolt locking key plate design is a double ring.Shaped blade, made of alloy steel.	Circular blade cutting holewall	Suitable for general steel components and concrete anchoring installation.It has expansion stress and is not suitable for installation in cracked concrete.	The ring-shaped cutting edge cuts completely into the hole wall, allowing for quick installation. However, when the edge of the hole encounters steel...When the concrete is reinforced or cracked, the anchoring effect is poor.

Description

Special Heavy-Duty Anchor Bolts for Engineering Use is part of our foundation & anchor bolts range (Anchors & Construction Fixings).

Key details

Type: Bonded Anchor Bolt
Standard: ANSI, BSW, DIN, GB, GOST
Material: Alloy Steel
Grade: 12.9
Head Style: Customization
Surface Treatment: Electro-Galvanizing / Hot-DIP Galvanizing / Dacrom
Finish: Black Oxide
Application: Structural Steel Connections

Available configurations include grade, head style, material, standard and other materials. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1,000 pieces at US$1.20 – 12.00 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 Special Heavy-Duty Anchor Bolts for Engineering Use?

The listed minimum order is 1,000 pieces, at US$1.20 – 12.00 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 Special Heavy-Duty Anchor Bolts for Engineering Use?

Type: Bonded Anchor Bolt; Standard: ANSI, BSW, DIN, GB, GOST; Material: Alloy Steel; Grade: 12.9; Head Style: Customization; Surface Treatment: Electro-Galvanizing / Hot-DIP Galvanizing / Dacrom. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include grade, head style, material, standard and other materials. 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$1.20 – 12.00MOQ 1,000 piecesGet a quote WA