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How to select eye bolts and use eye bolts safely

How should you select the right bolt?


Eye Bolts are marked with their thread size NOT with their rated capacities. Make sure you select the correct eyebolt based on its type and capacity for the lift you are conducting.


Use plain or regular eye bolts (nonshoulder) or ring bolts for vertical loading only. Angle loading on non-shoulder bolts will bend or break them. Use shoulder eye bolts for vertical or angle loading.


How should you use eye bolts safely?

Orient the eye bolt in line with the slings. If the load is applied sideways, the eye bolt may bend.

Pack washers between the shoulder and the load surface to ensure that the eye bolt firmly contacts the surface. Ensure that the nut is properly torqued.

Engage at least 90% of threads in a receiving hole when using shims or washers.

Attach only one sling leg to each eye bolt.


Inspect and clean the eye bolt threads and the hole.

Screw the eye bolt on all the way down and properly seat.

Ensure the tapped hole for a screw eye bolt (body bolts) has a minimum depth of one-and-a-half times the bolt diameter.

Install the shoulder at right angles to the axis of the hole. The shoulder should be in full contact with the surface of the object being lifted.

Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal.

Use eye bolts at a horizontal angle greater than 45°. Sling strength at 45° is 71% of vertical sling capacity. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity.

Use a swivel hoist ring for angled lifts. The swivel hoist ring will adjust to any sling angle by rotating around the bolt and the hoisting eye pivots 180°.


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Phone   : 008615020041072

E-mail    : info@trudylifting.com

Address:No.187 Heilongjiang Middle Road, Chengyang District, Qingdao, China.

Company Profile

Trudy Lifting is a manufacturer of load binder and trailer accessories and  electrical accessories and other lifting products for a variety of industries. Trudy Lifting was built on a foundation of experience, determination, service, and quality earning us an outstanding reputation for manufacturing quality rigging hardware products in all types of materials.