This set offers 3/4" crimps that are in the range of about 45 degrees incut. These dripstone screw-on climbing holds are not appropriate as handholds for children but do offer a challenging foothold for them.
Gym rock climbing rope sold by the foot. Color may vary.
3/8-16 Zinc Round Base T-nuts
For highly corrosive environments.
This ring is a one handed threader that you can hang from like a monkey.
3/8-16 x 1-1/2" Indoor rated allen head bolt