| CPC F16B 21/076 (2013.01) [F16B 5/065 (2013.01)] | 14 Claims |

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1. A fastener for fastening a first component in a second component having a circular hole, the fastener comprising:
a main body comprising a head configured to connect the first component and a shaft portion extending from the head; and
a retaining member comprising a receiving barrel and a plurality of retaining arms extending upwardly from the receiving barrel and distributed about a central axis of the receiving barrel, the shaft portion passing through and connected to the receiving barrel to limit axial and radial movement of the retaining member along the shaft portion relative to the main body, the plurality of retaining arms being configured to be deflectable toward the shaft portion, wherein the plurality of retaining arms and the shaft portion are configured such that the plurality of retaining arms are located between the shaft portion and the hole and abut against the hole to hold the second component between the head and the plurality of retaining arms when the retaining member is inserted into the hole;
wherein the main body is made of a first material and the retaining member is made of a second material that is more wear-resistant than the first material.
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