Thread size = M4
Mounting hole diameter = 5.6mm
Nominal outside diameter = 5.64mm
Nominal depth = 7.95mm
Material = brass
Material thickness min. = 10.2mm

Brass threaded insert - Extension insert. Extension inserts are suitable for use with most plastics, either with through holes or blind holes. Knurled outer diameter with expansion slots prevents rotation or loosening due to vibration and ensures even, self-locking pressure on the fastening screws. Available with flush head ( RS ; 278-534 278-534 , RS ; 278-540 278-540 , RS ; 278-556 278-556 , RS ; 278-562 278-562 , RS ; 278-578 278-578 ) Available with flange head ( RS ; 278-584 278-584 , RS ; 278-590 278-590 , RS ; 278-607 278-607 , RS ; 278-613 278-613 , RS ; 278-629 278-629 ). Characteristics and advantages:. Brass inserts are durable and corrosion resistant Knurled for secure hold Easy to push or hammer in Can be used in drilled or formed holes.