Star head screw
Product number:
207408
??" x 5/16" UNC
Product Information "Star head screw"
??" x 5/16" UNC
Star head means TORX?, which is the trademark for this type of screw drive, characterized by a 6-point star-shaped pattern. The official generic name is hexalobular internal.
TORX? = reg. trademark of Acument Intellectual Properties, LLC. USA