| 摘要 |
<p>A ballistic resistant bolt to be used in securing straps on a military combat helmet is provided, the bolt having a bolt head and a shaft extending from the underside surface of the bolt head. The bolt head has a generally circular shape and a side surface. The shaft has a bore extending from the end opposite the bolt head. The ratio of the diameter of the bolt head to the diameter of the shaft is approximately 1.65 to 1. The ratio of the diameter of the bolt head to the height of the side surface is approximately 11 to 1. The proportion of the diameter of the bore measured relative to the diameter of the shaft is between approximately 50% and approximately 73%. Also provided is a means for rotationally engaging the bolt head.</p> |
