https://www.lewiscontractorsales.com/falltech-fall-protection-bolt-on-d-ring-anchor-with-threaded-stud.html
Falltech Fall Protection Bolt On D-Ring Anchor with Threaded Stud
FallTech all steel bolt on D-Ring anchor has a 9/16" threaded stud with a grade 8 nut.
falltech fall protectiond ringbolt