Home / Recreation / Treadmill Screw 004381-00 Treadmill Screw 004381-00$2.16 Price may not be up-to-date. In Stock View Product Part Number: 004381-00 Brand: HORIZON FITNESS INC Seller: Sears PartsDirect Category: Recreation Not Returnable Description This screw (part number 004381-00) is for treadmills. Follow appropriate safety practices when installing screw 004381-00.