It is used for connecting the inner end of a boom or yard to the mast, by entering a clamp or eye-bolt.
Isetyenziswa ukudibanisa umphakathi womva wentsika egcina iseyile ivulekile ukuya kwimasti, ngokungenisa/ngokufaka isibambi okanye umngxunya wesikhonkwane esinamaqoqo.