| CPC E05C 9/1808 (2013.01) [E05C 9/04 (2013.01); E06B 5/10 (2013.01); E06B 3/22 (2013.01); E06B 3/96 (2013.01)] | 19 Claims |

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1. An impact-resistant fenestration unit comprising:
a frame assembly comprising a sill, a head jamb, and two opposed side jambs;
a bottom sash, the bottom sash comprising a bottom rail, a check rail, and opposed stiles; the bottom sash configured to pivot inward away from the frame assembly such that the check rail moves away from the frame assembly; the bottom sash configured to move within the frame between a closed position and an open position;
a first sash tilt bolt assembly comprising a bolt;
a second sash tilt bolt assembly comprising a bolt;
the first and second sash tilt bolt assemblies disposed on opposite sides of the check rail;
a first side bracket defining a cavity to receive a portion of the bolt of the first sash tilt bolt assembly; the first side bracket mounted on one of the two opposed side jambs at a height corresponding to a position of the check rail when the bottom sash is in a closed position; and
a second side bracket defining a cavity to receive a portion of the bolt of the second sash tilt bolt assembly; the second side bracket mounted on the other of the two opposed side jambs at a height corresponding to the position of the check rail when the bottom sash is in a closed position;
wherein the first and second bolts comprise a metal inner support member and a polymeric overmold portion; and
wherein the first and second side brackets are anchored in place each using a fastener that penetrates through the frame assembly into an area outside the frame assembly.
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