Oblong Link Blue Painted Alloy Steel 12 * 1-3/4" Grade 100 length_3-8 They have a blue thread

They have a blue thread sewn through the material to distinguish them from nylon

and nonmagnetic

The screw has a length of 3/8" and a thread of 1/2-13

The maximum load is 5000 lbs

Black-oxide alloy steel set screws resist corrosion in dry environments

Oblong Link Blue Painted Alloy Steel 12 * 1-3/4" Grade 100 length_3-8 They have a blue threadAlso known as master and sling links, a large inner diameter provides room to attach multiple connectors or legs on a sling. Grade 100 links are approximately 20% stronger than Grade 80 links when used with chain of the same grade. Note: Capacities are for vertical lifting only. As the angle changes from vertical, the amount of weight the link can lift is significantly reduced.