Hoʻohana ʻia ʻo FB-42 Split Set Bolt ma ke ʻano he kākoʻo ʻokoʻa friction bolt stabilizer o FB-47 Split Set Bolt no nā papahana ma lalo a i ʻole ma luna o ka ʻāina i nā mines, tunnels a i ʻole nā wahi āpau e pono ai ke kākoʻo ʻāina hilinaʻi, ʻoi aku hoʻi i ka hoʻomohala ʻana a me ka hana ʻana i nā mīkini jumbo.ʻO kā mākou FB-42 Split Set Bolt i hana ʻia e ke kiʻekiʻe kiʻekiʻe o ke kila kila me ka haʻahaʻa haʻahaʻa o Si & P i nā mea kemika e hana i kahi hana kūpono i ke kākoʻo ʻāina, a kōkua i ka loaʻa ʻana o ka maikaʻi maikaʻi i ka galvanizing.