High torque bolt

A bolt comprising:

• a main-bolt head having (i) a front surface, (ii) an opposing back surface, (iii) an outer surface configured to be engaged by a tool to rotate the bolt about a central axis of the bolt shaft thereby causing the main-bolt head to move axially in a first direction towards an object, and (iv) a recess in the front surface extending into the main-bolt head towards the opposing back surface;
• a threaded shaft extending from the main-bolt head at a head-shaft joint, the threaded shaft having an external thread wrapped therearound;
• and
• a deformable-bolt head component having (i) a front surface configured to engage the object thereby limiting axial movement of the deformable-bolt head component, (ii) an opposing back surface, (iii) an outer surface, (iv) an interior threaded bore forming at least a portion of a turn of an internal thread therein, and (v) an outer flange, the outer flange having a first elastic modulus and the rest of the deformable-bolt head component having a second elastic modulus that is greater than the first elastic modulus,
• wherein the interior threaded bore of the deformable-bolt head component is threadingly coupled to the threaded shaft and wherein the outer flange of the deformable-bolt head component is attached to the front surface of the main-bolt head such that a relief space is formed between the deformable-bolt head component and the recess, the relief space providing an area for the deformable-bolt head component to deform into during installation of the bolt.

A bolt having a reinforced head, the bolt comprising:

• a main-bolt head;
• a collar fixed to the main-bolt head such that the collar forms a recess of the reinforced head;
• a threaded shaft extending from the main-bolt head and through the collar, the threaded shaft having an external thread wrapped therearound;
• and
• a deformable-bolt head component having an outer flange and an interior threaded bore, the outer flange of the deformable-bolt head component being coupled to the collar such that a relief space of the reinforced head is formed between the deformable-bolt head component and the recess, the outer flange having a first elastic modulus and the rest of the deformable-bolt head component having a second elastic modulus that is greater than the first elastic modulus.