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Spring-Return Leg Lock Index Pin
A print-in-place spring-return index pin that replaces the unobtainable spring button on folding table legs, step stools, ladders and camp furniture: an 8 mm diameter pin with a 24° self-latching nose protrudes 8 mm past the housing face and retracts a full 8 mm when you pull the thumb tab, returned by a seven-leaf compliant meander spring printed as one piece with the body. Housing is 84 x 46 x 22 mm and screws down with four M4 screws on a 60 x 36 mm rectangle (4.5 mm clearance holes); the pin rides on the mounting face like a barrel bolt and suits any existing 8.5–10 mm round hole.
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