A fastener (100, 600, 700, 800, 1000) for coupling a first component to a mounting hole of a second component, the fastener comprising: a central body portion (110, 601), insertable through the mounting hole of the second component, having a distal end and a proximal end, and a central axis between said distal end and said proximal end; and a head portion (102, 1014), provided at said proximal end of said central body portion (110, 601), configured to stoppingly engage with an upper surface of the second component, during use; characterised by at least two resilient ribs (120a, 120b, 602, 722, 724, 726, 820a, 820b, 820c, 820d, 1020a), protruding radially outward from an outer surface of said central body portion (110, 601), adapted to rotatingly bias said central body portion (110, 601) about said central axis when operably engaged with the mounting hole of the second component, during use; at least a first pair of diametrically opposed recessed surfaces (130a, 130b, 1010, 1012a, 1012b), provided at said proximal end of said central body, extending axially between said head portion (102, 1014) and a respective shoulder portion (134a, 134b) formed by each one of said first pair of recessed surfaces (130a, 130b, 1010, 1012a, 1012b) towards said distal end, each one of said first pair of recessed surfaces (130a, 130b, 1010, 1012a, 1012b) is circumferentially spaced apart from a respective one of said at least two resilient ribs (120a, 120b, 602, 722, 724, 726, 820a, 820b, 820c, 820d, 1020a) about said central axis and adapted to lockingly engage with the second component, during use, and wherein said at least two resilient ribs (120a, 120b, 602, 722, 724, 726, 820a, 820b, 820c, 820d, 1020a) extend along said outer surface of said central body portion (110, 601) in a direction along said central axis between said distal end and said proximal end, and axially past said respective shoulder portion (134a, 134b). a central body portion (110, 601), insertable through the mounting hole of the second component, having a distal end and a proximal end, and a central axis between said distal end and said proximal end; and a head portion (102, 1014), provided at said proximal end of said central body portion (110, 601), configured to stoppingly engage with an upper surface of the second component, during use; characterised by at least two resilient ribs (120a, 120b, 602, 722, 724, 726, 820a, 820b, 820c, 820d, 1020a), protruding radially outward from an outer surface of said central body portion (110, 601), adapted to rotatingly bias said central body portion (110, 601) about said central axis when operably engaged with the mounting hole of the second component, during use; at least a first pair of diametrically opposed recessed surfaces (130a, 130b, 1010, 1012a, 1012b), provided at said proximal end of said central body, extending axially between said head portion (102, 1014) and a respective shoulder portion (134a, 134b) formed by each one of said first pair of recessed surfaces (130a, 130b, 1010, 1012a, 1012b) towards said distal end, each one of said first pair of recessed surfaces (130a, 130b, 1010, 1012a, 1012b) is circumferentially spaced apart from a respective one of said at least two resilient ribs (120a, 120b, 602, 722, 724, 726, 820a, 820b, 820c, 820d, 1020a) about said central axis and adapted to lockingly engage with the second component, during use, and wherein said at least two resilient ribs (120a, 120b, 602, 722, 724, 726, 820a, 820b, 820c, 820d, 1020a) extend along said outer surface of said central body portion (110, 601) in a direction along said central axis between said distal end and said proximal end, and axially past said respective shoulder portion (134a, 134b).