Hexagonal hollow headed fastener key - has faceted and profiled sides to give greater surface contact with hollow head of screw

摘要

A hexagonal hollow headed key has facetted sides (5) parallel with the long axis (Y-Y). Through the middle of the sides (X-X) are pairs of side surfaces (1a, 1b, 2a, 2b) tapering inwards toward the long axis (Y-Y). USE/ADVANTAGE - Provides better surface contact with the inner hexagon sides of the hollow screw.