Frangible fastener

A method for fabricating a frangible fastener configured to secure a first external component to a second external component until receiving a breaking force such that a first end of the fastener separates from a second end of the fastener and the first external component separates from the second external component responsive to the fastener receiving the breaking force, the method comprising:

• forming a head portion at the first end of the fastener, the head portion comprising a first side at the first end of the fastener and a second side located toward the second end of the fastener, the second side of the head portion configured to abut the first external component;
• forming a frangible portion adjacent to the head portion toward the second end along a first axis, the frangible portion comprising a frangible body;
• forming a plurality of through wall cuts in a wall thickness of the frangible body, the frangible body configured to separate at or near the through wall cuts responsive to the breaking force;
• forming a tool engagement portion such that the tool engagement portion is configured to engage a tightening tool, the tool engagement portion formed adjacent to the frangible portion toward the second end along the first axis;
• and
• forming a threaded portion adjacent to the tool engagement portion at the second end of the fastener along the first axis configured to engage corresponding threads formed in the second external component and cause the second side of the head portion to compress the first external component against the second external component until the frangible portion separates responsive to the breaking force.

A frangible fastener configured such that a first end of the fastener separates from a second end of the fastener responsive to a breaking force, the fastener comprising:

• a head portion located at the first end of the fastener, the head portion forming a channel along a first axis of the frangible fastener extending toward the second end of the fastener;
• a frangible portion located adjacent to the head portion toward the second end along the first axis, the frangible portion comprising a frangible body having a plurality of through wall cuts in a wall thickness of the frangible body, the through wall cuts formed by radial bores that extend from the head portion at the first end to the frangible portion, the radial bores being substantially parallel to the first axis and located at an edge of the channel such that the radial bores form the through wall cuts in the wall thickness of the frangible body, the frangible body being configured to separate at or near the through wall cuts responsive to the breaking force;
• a tool engagement portion configured to engage a tightening tool, the tool engagement portion located adjacent to the frangible portion toward the second end along the first axis;
• and
• a threaded portion located adjacent to the tool engagement portion at the second end of the fastener along the first axis.