Standard & made-to-drawing parts
Checked before shipping
Air, sea & express delivery

Anchors & Construction Fixings › Foundation & Anchor Bolts

Square Head Galvanized Twisted Shank Foundation Bolt

Updated 2026-11-03 · Markdown version

Model no. screw003

US$0.0012 – 12.00 / piece

MOQ 500 pieces · Final price confirmed in your quote

Material: High Strength Steel
Head Style: Square
Standard: DIN, ANSI, GB, BSW
Grade: 9.8
Finish: Hot Galvanizing
Package Size: 40.00cm * 30.00cm * 20.00cm
Body Material: High-strength carbon steel (Grade 45 / 8.8) for superior tensile and shear strength.
Surface Treatment: Hot-dip galvanized (HDG) for maximum corrosion resistance against moisture, chemicals, and outdoor exposure.

Get a quote WhatsApp

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
Material	High Strength Steel
Type	Square Head
Model NO.	screw003
Connection	Common Bolt
Head Style	Square
Standard	DIN, ANSI, GB, BSW
Grade	9.8
Application	Machinery, Chemical Industry, Environmental, Building
Finish	Hot Galvanizing
Transport	by Sea or Air
Deliverytime	10-15days
Weight	100g
Transport Package	Wooden or Pallet
Specification	Alloy
Origin	China
HS Code	7318190000
Production Capacity	5000
Package Size	40.00cm * 30.00cm * 20.00cm
Package Gross Weight	5.000kg
Body Material	High-strength carbon steel (Grade 45 / 8.8) for superior tensile and shear strength.
Surface Treatment	Hot-dip galvanized (HDG) for maximum corrosion resistance against moisture, chemicals, and outdoor exposure.
Design	Three-section structure – a hexagonal head for wrench engagement, a smooth middle shank for grout coverage, and a sharp helical cutting tip for easy penetration and enhanced bonding.
Structure	Precision-machined helical flutes increase the contact area with grout, creating a strong mechanical lock that distributes loads evenly across the foundation.
Exceptional Load-Bearing Capacity	The helical design combined with grout bonding creates an ultra-strong anchor point, offering superior pull-out and shear resistance compared to standard straight anchors.
Permanent & Reliable Installation	Grout-filled installation ensures a permanent, non-loosening connection that resists vibration, settlement, and dynamic loads over the long term.
Superior Corrosion Protection	Full hot-dip galvanized coating provides a thick, durable barrier against rust and corrosion, suitable for both embedded (concrete/soil) and exposed applications.
Versatile Substrate Compatibility	Designed for use with grout in concrete, brick, stone, and compacted soil, making it suitable for a wide range of foundation and anchoring projects.
Category	Foundation & Anchor Bolts

Technical parameters

Origin	Hebei,China
Port	Tianjin
Specification	Customized

Description

Square Head Galvanized Twisted Shank Foundation Bolt is part of our foundation & anchor bolts range (Anchors & Construction Fixings).

Key details

Type: Square Head
Standard: DIN, ANSI, GB, BSW
Material: High Strength Steel
Grade: 9.8
Head Style: Square
Finish: Hot Galvanizing
Connection: Common Bolt
Application: Machinery, Chemical Industry, Environmental, Building

Available configurations include material, head style, standard, grade and finish. 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$0.0012 – 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 Square Head Galvanized Twisted Shank Foundation Bolt?

The listed minimum order is 500 pieces, at US$0.0012 – 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 Square Head Galvanized Twisted Shank Foundation Bolt?

Type: Square Head; Standard: DIN, ANSI, GB, BSW; Material: High Strength Steel; Grade: 9.8; Head Style: Square; Finish: Hot Galvanizing. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, head style, standard, grade and finish. 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 →

Request a quote for this product

US$0.0012 – 12.00MOQ 500 piecesGet a quote WA