Carabiner 3D Model.
Carabiners, often called D-Rings by military professionals, are widely used in rope-intensive activities such as climbing, arboriculture, caving, sailing, hot air ballooning, rope rescue, construction, industrial rope work, window cleaning, whitewater rescue, and acrobatics. (wiki)

This model is suitable for use in broadcast, high-res film close-up, advertising, design visualization, etc.

This model contains 5 geometry objects.

Model created in real world size.
Units used - centimeters
Dimensions: 11.4cm x 2.8cm x 16.5cm

Modeled for Subdivision.
3ds Max model has TurboSmooth modifier applied.

Clean topology.
No N-Gons.

Includes 3Ds Max Model setuped for V-Ray render.
Includes 3Ds Max Model setuped for standart Scanline render.
No third-party renderer or plug-ins needed.
For V-Ray scene you will need V-Ray renderer.
Previews rendered with V-Ray.

Textures:
1. Carabiner_Diffuse.png - 4096x4096
2. Carabiner_Specular.png - 4096x4096
3. Carabiner_Glossiness.png - 4096x4096
4. Carabiner_Normal.png - 4096x4096
5. Carabiner_Metallic.png - 4096x4096

Feel free to leave your opinion in comments and check out my other models.
Yegor Tsyba 2018