Plum Button Bushing | Snap-In Cable Protection

Product Introduction：

The plum button type bushing (RSB Plug) is made of nylon and features a plum-blossom shaped petal structure, specially designed for the edges of holes in metal panels, chassis, or plastic enclosures. Its purpose is to effectively isolate sharp edges when wires or cables pass through the hole, preventing insulation abrasion or cutting. Installation is simple: press the bushing into the corresponding hole diameter, and the plum petals will naturally expand and lock into place without requiring additional tools. The nylon material offers excellent wear resistance, flame retardancy (UL94 V-2 rating), and resistance to oils and solvents. This bushing is widely used at cable entry/exit points in distribution boxes, instruments, household appliances, and automotive harnesses, providing long-term, gentle protection for cables.

Product Advantages:

Plum-blossom petal design for secure panel grip

Protects wires from sharp metal edges

Tool-free snap-in installation

OEM&ODM Support

Resists oils, greases, and solvents

Flexible for various panel thicknesses

Product Structure Diagram：

Product Parameters：

Model	Minimun Diameter of A (mm)	Maximun Diameter of A (mm)	Surface diameter B (mm)	Height (mm)
RSB-16	15.6	17.5	19.7	10.8
RSB-19	18.7	20.6	23.2	10.8
RSB-21	21.6	24	25.4	11.5
RSB-22	21.6	24	25.4	11.5
RSB-25	24.3	26.7	28.2	11.5
RSB-26	25.7	27.8	28.8	11.5
RSB-28	27.6	29.8	31.4	11.5
RSB-30	29.7	31.7	34.1	11.5
RSB-32	31.5	34.1	35.7	11.5
RSB-35	34.7	36.4	37.2	11.5
RSB-38	37.5	39.9	41.5	11.5
RSB-40	39.6	42.1	45.3	11.5
RSB-45	44.5	46.3	49.7	11.5
RSB-50	49.5	51.9	54.5	11.5
RSB-55	54.5	57.3	59.4	11.5
RSB-60	59.3	62.9	64.9	11.5
RSB-63	62.5	65.2	67.9	11.5
RSB-65	64.5	68.5	69.9	11.5
RSB-70	69.3	72.8	74.9	11.5
RSB-70	74.5	77.4	79.5	11.5