In a securing element for connecting two parts, in particular for a screw connection, the securing element is ring-shaped. The securing element has an outer profile along the outer diameter and an inner profile along the inner diameter. The outer profile and the inner profile are both formed by a plurality of profile units. The number of profile units of the outer profile and the number of profile units of the inner profile correspond to the number of graduation marks at different scales according to the principle of a vernier scale, the number of profile units of the outer profile differing by at least 1 from the number of profile units of the inner profile. In precisely one position, a profile unit of the outer profile is exactly opposite a profile unit of the inner profile.

A pass through fitting for a cable or the like comprises a split bolt having a threaded shank and a nut which can be locked on the shank to prevent rotation therebetween. A passageway extends through the split bolt for receiving one or more cables. The fitting would be supported in a structure, such as a boat hull, through which it is desired to run the cable. The fitting may be sealed at the head, against the structure, to be watertight.

A lock nut is useable for setting a bearing to preload or endplay. A plurality of preload markings are circumferentially spaced apart on the nut. The distance between the preload marking corresponding to a preselected amount of preload applied or reduced on said bearing when the nut is (i) tightened to apply a preload force to said bearing or (ii) loosened to reduce a preload force on said bearing, respectively. A plurality of endplay markings are also circumferentially spaced apart on the nut. The distance between the endplay markings, corresponding to a preselected amount of endplay increased or reduced in said bearing when the nut is (i) tightened to reduce endplay on the bearing or (ii) loosened to increase endplay in said bearing. The use of endplay and preload markings enables setting of a bearing on an axle or spindle to either an endplay setting or a preload setting by adjusting the rotation of the lock nut according to the endplay markings or the preload markings, respectively.

A lock nut is useable for setting a bearing to preload or endplay. A plurality of preload markings are circumferentially spaced apart on the nut. The distance between the preload marking corresponding to a preselected amount of preload applied or reduced on said bearing when the nut is (i) tightened to apply a preload force to said bearing or (ii) loosened to reduce a preload force on said bearing, respectively. A plurality of endplay markings are also circumferentially spaced apart on the nut. The distance between the endplay markings, corresponding to a preselected amount of endplay increased or reduced in said bearing when the nut is (i) tightened to reduce endplay on the bearing or (ii) loosened to increase endplay in said bearing. The use of endplay and preload markings enables setting of a bearing on an axle or spindle to either an endplay setting or a preload setting by adjusting the rotation of the lock nut according to the endplay markings or the preload markings, respectively.

A locking fastener includes a thermoplastic fastener body, a locking coil, and a support collar. The fastener body defines a cylindrical cavity and a radially extending slot communicating with the cavity. The support collar has an arcuate portion and first and second tabs extending radially outward from the arcuate portion. The support collar is disposed within the fastener body with the arcuate portion adjacent the cavity wall and the tabs extending into the slot. The locking coil has a helical portion and first and second tangs extending radially outward from the helical portion. The helical portion of the locking coil is positioned within the support collar, and the first and second tangs extend into the slot and between the first and second tabs.

Lock mechanism for preventing unwanted rotation of a jam nut on a threaded connection between a rod end and a connecting rod. The mechanism includes a lock collar which can be moved axially of the rod end and the connecting rod between a retracted position out of contact with the jam nut and a locking position in which the collar engages the jam nut and prevents the jam nut from turning, and a retainer for keeping the lock collar in the locking position.

Lock mechanism for preventing unwanted rotation of a jam nut on a threaded connection between a rod end and a connecting rod. The mechanism includes a lock collar which can be moved axially of the rod end and the connecting rod between a retracted position out of contact with the jam nut and a locking position in which the collar engages the jam nut and prevents the jam nut from turning, and a retainer for keeping the lock collar in the locking position.

An improved fastener comprising a fastener body orientated about a central axis and having a tool-engaging portion, a threaded fastening portion and a shroud-receiving portion having an inwardly facing annular groove orientated transverse to the central axis; a shroud concentrically mounted on the shroud-receiving portion to rotate relative to the fastener body under an applied external torque and having an axially-buckled radially-extending annular protrusion extending outwardly transverse to the central axis and disposed in the inwardly facing annular groove of the shroud-receiving portion of the body; the axially-buckled radially-extending annular protrusion of the shroud and the annular groove of the shroud-receiving portion of the body forming a shroud-retaining element restraining the shroud from movement in at least a first axial direction along the central axis.

A fastening device, fixing an exhaust manifold (12) on a cylinder head (14) of an internal combustion engine, has a contact surface (20) supported relative to a cylinder head contact surface (22). A fastening edge area (16) has a wedge fastening flange area (24) with a fastening element support surface (26) inclined in relation to the contact surface (20) that has a wedge angle (W.sub.1). A fastening element (38) is pressed against the fastening element support surface (26) with a fastening flange support surface (40) with a fastening bolt unit (30) supported in relation to the cylinder head (14). The wedge angle (W.sub.1) and a coefficient of static friction (μ) of the frictional interaction of the fastening element (38) in relation to the exhaust manifold (12) is defined by: 0<W.sub.1<2 tan.sup.−1 (μ), in which W.sub.1 is the wedge angle, and μ if the coefficient of static friction.

A lock nut is useable for setting a bearing to preload or endplay. A plurality of preload markings are circumferentially spaced apart on the nut. The distance between the preload marking corresponding to a preselected amount of preload applied or reduced on said bearing when the nut is (i) tightened to apply a preload force to said bearing or (ii) loosened to reduce a preload force on said bearing, respectively. A plurality of endplay markings are also circumferentially spaced apart on the nut. The distance between the endplay markings, corresponding to a preselected amount of endplay increased or reduced in said bearing when the nut is (i) tightened to reduce endplay on the bearing or (ii) loosened to increase endplay in said bearing. The use of endplay and preload markings enables setting of a bearing on an axle or spindle to either an endplay setting or a preload setting by adjusting the rotation of the lock nut according to the endplay markings or the preload markings, respectively.