Ma shackle a mtundu wa G-2130 Bolt Type Anchor okhala ndi bolt yopyapyala ya mutu - nati yokhala ndi pini ya cotter. Amakwaniritsa zofunikira pakugwira ntchito kwa Federal Specification RR-C-271F Type IVA, Giredi A, Kalasi 3, kupatulapo zomwe zimafunikira kwa kontrakitala.