Eye Bolt Dimensions – Guide to Sizes and Specifications

Eye bolts are widely used for lifting, rigging, and securing loads in construction, industrial, and marine applications. Choosing the right size and type of eye bolt is crucial to ensure safe and effective load handling.

Standard Eye Bolt Dimensions

Eye bolts come in various sizes depending on their thread diameter, shank length, and eye inner diameter. Below is a general reference for standard eye bolt dimensions:

Thread Size (Diameter)Eye Inside Diameter (mm)Shank Length (mm)Safe Working Load (kg)
M612 mm20-50 mm70-100 kg
M816 mm25-60 mm140-230 kg
M1020 mm30-75 mm230-400 kg
M1225 mm35-100 mm400-600 kg
M1635 mm45-120 mm800-1,200 kg
M2040 mm50-150 mm1,200-2,000 kg
M2450 mm60-200 mm2,000-3,000 kg

Types of Eye Bolts and Their Uses

TypeFeaturesApplication
Standard Eye BoltFixed eye, suitable for vertical loadsLifting and anchoring
Shoulder Eye BoltReinforced shoulder for angled loadsRigging and lifting
Swivel Eye BoltRotates to align with the loadMarine and industrial lifting
Lag Eye BoltScrews directly into woodFencing, overhead fixtures

How to Choose the Right Eye Bolt

  1. Load Capacity – Ensure the bolt can handle the intended weight.
  2. Material – Stainless steel for corrosion resistance, galvanized steel for durability.
  3. Shank Length – Must be long enough for a secure installation.
  4. Eye Diameter – Should accommodate the lifting or securing hardware.

Eye bolts are essential in securing and lifting loads safely. Selecting the right dimensions and type ensures a secure, reliable, and long-lasting installation for any application.

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