Gi Foundation Bolt

Gi Foundation Bolt

Gi foundation bolt is made from Q235B, Q355B, 45# steel, 40Cr, or 35CrMoA according to load. Common grades include 4.6, 5.6, 8.8, and 10.9, with diameters from M16 to M48 and lengths from 200 mm to 2000 mm.
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Description

Gi foundation bolt is used to anchor equipment bases, steel columns, photovoltaic supports, bridges, and concrete foundations. The product can be made as L type, J type, T type, or straight rod with anchor plate. Its advantage is that diameter, grade, embedment length, thread length, and galvanized layer can be matched to the drawing before concrete work begins, so the anchor position is not changed after pouring.

 

Product Parameters

 

Parameter

Specification

Material

Q235B, Q355B, 45# steel, 40Cr, 35CrMoA

Strength Grade

4.6, 5.6, 8.8, 10.9

Diameter

M16, M20, M24, M30, M36, M42, M48

Length

200-2000 mm by embedment depth and exposed thread

Shape

L type, J type, T type, straight rod with anchor plate

Surface Treatment

Hot-dip galvanized, zinc plated, black, or stainless by project

Reference Standard

GB/T 799 type anchor bolt structure by order

 

Product Advantages

 

1) Gi foundation bolt can be supplied in different shapes, so the same order can cover column bases, machine bases, and support frames.

2) The strength grade is selected with material: Q235B for 4.6 grade, Q355B or 45# for higher grades, and alloy steel for 8.8 or 10.9 grade work.

3) Thread length and embedment length are separated in the drawing, which helps the exposed nut height remain stable after concrete pouring.

Main Applications

Used for steel structure columns, PV support foundations, machinery bases, bridge supports, and outdoor equipment foundations.

Suitable for pre-embedded anchor work before concrete pouring.

Quality Control

Thread gauge, total length, bending angle, anchor plate size, and galvanized surface are checked before packing.

For mixed diameters, M16, M20, and M24 parts are bundled separately with size marks.

17770147826748

 

FAQ

 

Q: Which grade should I use for common foundations?

A: 4.6 or 5.6 grade is often used for light foundations. 8.8 or 10.9 grade should follow the load design and drawing.

Q: Can the length be customized?

A: Yes. gi foundation bolt can be made from 200 mm to 2000 mm according to embedment depth and exposed thread length.

Q: What surface treatment is suitable outdoors?

A: Hot-dip galvanizing is commonly used for outdoor foundations. Stainless steel can be selected for chemical or coastal areas.

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