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Product Description
Needs a #4-40 x 1 1/4" screw to mount to the rail. You will also need a #4-40 tap to make threads for the screw(they come in most ta sets or are around $5 from a local hardware store) No Tap version here: http://shpws.me/DvG4 This product and/or service is not affiliated with, endorsed by or in any way associated with GoPro Inc. or its products and services. GoPro, HERO and their respective logos are trademarks or registered trademarks of GoPro, Inc.