Overview Reviews Product Description Rail strap assembly for the Overhead Door Signature model #930 and #950 screw drive garage door opener. Product Videos Product Reviews Write a Review Write a Review × RAIL STRAP (SCREWDRIVE) Review Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments * Recaptcha: