A clamping nut (100) for a hose connector (200) includes a first angular surface (302) and a second angular surface (304) defined on an inner surface (122) of a nut body (110) towards the first end (112) and the second end (114) of the nut body (110). The first angular surface (302) and the second angular surface (304) are provided at a first angle (α) and a second angle (β) with a central axis (A-A’) of the nut body (110). A contact section (306) is defined on the inner surface (122) of the nut body (110) between the first angular surface (302) and the second angular surface (304). The contact section (306) is adapted to contact a hose (120) when the clamping nut (100) is threadedly coupled to the hose connector (200). Further, inner diameter (d) of the inner surface (122) of the clamping nut (100) across the contact section (306) is substantially identical to an outer diameter (D) of the hose (120), and the first angle (α) has a value in a range of about 90 to 120 degrees.一種用於軟管接頭(200)的夾緊螺帽(100)，包括第一角度表面(302)和第二角度表面(304)，分別界定在螺帽主體(110)朝向該螺帽主體(110)的第一端(112)和第二端(114)的內表面(122)上。第一角度表面(302)和第二角度表面(304)分別設置為與螺帽主體(110)的中心軸線(A-A’)成第一角度(α)和第二角度(β)。接觸部分(306)界定在第一角度表面(302)與第二角度表面(304)之間的螺帽主體(110)的內表面(122)上。接觸部分(306)適配為當夾緊螺帽(100)螺接到軟管接頭(200)時接觸軟管(120)。此外，穿過接觸部分(306)的夾緊螺帽(100)的內表面(122)的內徑(d)基本上與軟管(120)的外徑(D)相同，且第一角度(α)具有在約90度至120度範圍內的值。
