Steel & prefabs ltd

HOW TO ORDER FOUNDATION BOLTS & THREADED RODS

o manufacture your order accurately, please provide the following specifications. All dimensions should be in millimetres (mm) unless stated otherwise.

1. Bolt Type

Choose one:

  • Straight Foundation Bolt
  • L-Bolt
  • J-Bolt
  • Double Threaded Bolt
  • Full Threaded Rod
  • Other (Attach drawing)

2. Rod Diameter (Thickness)

Specify the bolt diameter.

Examples:

  • M12
  • M16
  • M20
  • M24
  • M30
  • M36
  • M42
  • M48

3. Overall Length (Height)

Specify the total length of the bolt.

Example:

  • 600 mm
  • 750 mm
  • 1200 mm

4. Threaded Area

Specify the threaded length.

For example:

Straight Bolt

  • Top Thread = 100 mm

Double Threaded Bolt

  • Top Thread = 100 mm
  • Bottom Thread = 100 mm

Full Threaded Rod

  • Entire Length Threaded

5. Bend Dimensions (L & J Bolts Only)

Provide:

  • Vertical Leg
  • Horizontal Leg
  • Inside Bend Radius (if required)

Example:

  • Vertical Leg = 500 mm
  • Horizontal Leg = 150 mm
  • Inside Radius = 30 mm

6. Number of Nuts

Example:

  • 2 Hex Nuts
  • 4 Hex Nuts

7. Number of Flat Washers

Example:

  • 2 Flat Washers
  • 4 Flat Washers

8. Finish

Choose one:

☐ Black Steel

☐ Hot-Dip Galvanised

☐ Electro Galvanised

☐ Stainless Steel


9. Material Grade (If Known)

Examples:

  • Grade 4.6
  • Grade 5.6
  • Grade 8.8
  • Grade 10.9
  • SS304
  • SS316

10. Quantity

Example:

  • 10 Pieces
  • 25 Pieces
  • 100 Pieces

11. Drawing or Sample (Recommended)

If available, attach:

  • Engineering Drawing (PDF/DWG)
  • Sketch with Dimensions
  • Photo
  • Existing Sample

Example Order

Type: L-Bolt

Diameter: M20

Overall Length: 800 mm

Thread Length: 120 mm

Vertical Leg: 650 mm

Horizontal Leg: 150 mm

Nuts: 2

Flat Washers: 2

Finish: Hot-Dip Galvanised

Material Grade: Grade 8.8

Quantity: 50 Pieces


Before You Submit Your Order

Please confirm that you have provided:

✅ Bolt Type

✅ Rod Diameter (M Size)

✅ Overall Length

✅ Thread Length

✅ Bend Dimensions (L & J Bolts)

✅ Number of Nuts

✅ Number of Flat Washers

✅ Finish (Black/Galvanised/Stainless)

✅ Material Grade

✅ Quantity

✅ Drawing or Photo (if available)


Need assistance?
If you are unsure about any dimensions, simply send us a photo, sketch, or engineering drawing. Our technical team will help you determine the correct specifications before manufacturing begins.

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