Provided in the context of a bolt is a method for achieving antiloosening capability such as will make it possible for tightening operations to be carried out easily and rapidly, and such as will make it possible to obtain antiloosening effect in robust and reliable fashion. Comprised, in such form as if a single bolt had been cut into two perpendicularly with respect to an axis thereof at a location midway along the axis thereof, of first bolt 11 having a bolt head and second bolt 12 having a threaded tip; second bolt 12 being such that an eccentric columnar portion 123 which is smaller in diameter than a diameter of the shaft of the second bolt 12 is provided at cutting plane 122 in such fashion as to protrude outward in an axial direction in eccentric fashion with respect to a direction perpendicular to a central axis, and such that side face protrusion 124 is formed at an outside circumferential side face of eccentric columnar portion 123; first bolt 11 being such that eccentric cylindrical portion 113 that mates with eccentric columnar portion 123 is formed at cutting plane 112 in eccentric fashion with respect to a direction perpendicular to a central axis, axial groove 114 being formed in a direction parallel to the central axis and radial groove 115 being formed in a radial direction at the interior thereof; the entirety constituting locking bolt 1.

Provided is a battery module in which a connection structure between electrode leads is changed to prevent a heat generation phenomenon when overcharged and to allow easy connection and disconnection between secondary batteries, and a method for manufacturing the same. The battery module according to the present disclosure includes a secondary battery stack formed by stacking a plurality of secondary batteries having electrode leads, wherein each electrode lead protrudes from the corresponding secondary battery, and each electrode lead has a bent part, and the bent parts of opposite-polarity electrode leads of neighboring secondary batteries are stacked with an elastic body interposed therebetween, and the corresponding stacked part is fastened by an insulating bolt including a washer, with the elastic body being compressed.

Provided is a battery module in which a connection structure between electrode leads is changed to prevent a heat generation phenomenon when overcharged and to allow easy connection and disconnection between secondary batteries, and a method for manufacturing the same. The battery module according to the present disclosure includes a secondary battery stack formed by stacking a plurality of secondary batteries having electrode leads, wherein each electrode lead protrudes from the corresponding secondary battery, and each electrode lead has a bent part, and the bent parts of opposite-polarity electrode leads of neighboring secondary batteries are stacked with an elastic body interposed therebetween, and the corresponding stacked part is fastened by an insulating bolt including a washer, with the elastic body being compressed.

A clamp bolt providing a bolt and two nut, each nut being screwed on an end of the bolt. The clamp bolt further including two washers, mounted around the bolt, and axially positioned between the two nuts.

A license plate mounting bracket for vehicles having horizontal grilles, includes a license plate holder coupled to a license plate holder mount that has an adjustable clamp that includes a first jaw and a second jaw. A male-to-female standoff includes an axial threaded hole at a female end thereof, a shoulder engaging a front end of the first jaw and a male threaded portion passing through the first jaw and engaging female threads in a hole in the second jaw. A horizontal stabilizing member is attached to the first jaw of both the first and second clamps to hold the first jaw of the first clamp in a fixed position with respect to the first jaw of the second clamp.

To provide a steel for bolts with excellent delayed fracture resistance and cold forgeability while maintaining the strength as a steel material, and also to provide a bolt producing from such a steel for bolts.

The steel for bolts according to the present invention includes, in percent by mass: 0.20 to 0.40% of C; 1.5 to 2.5% of Si; 0.20 to 1.5% of Mn; more than 0% and 0.03% or less of P; more than 0% and 0.03% or less of S; 0.05 to 1.5% of Cr; 0.01 to 0.10% of Al; 0.0003 to 0.01% of B; 0.002 to 0.020% of N; and one or two elements selected from the group consisting of 0.02 to 0.10% of Ti and 0.02 to 0.10% of Nb, with the balance being iron and inevitable impurities.

A bolt for peeling a coating film of the present invention includes notch parts 6 for peeling a coating film, the notch parts being formed over a plurality of pitches at top parts of screw threads in a male screw part 3 formed in a shaft part 2. The bolt is characterized in that the respective notch parts 6 formed over the plurality of pitches are arranged to be greatly inclined at an angle of 40° to 50° to an axial line 12 of the shaft part 2. Since the respective notch parts can be rolled sequentially, it is possible to form the notch parts 6 to be deeper and sharper than conventional ones and to enhance the coating film peeling performance. Also, the coating film peeled can be discharged efficiently as compared with conventional cases.

A bolt for peeling a coating film of the present invention includes notch parts 6 for peeling a coating film, the notch parts being formed over a plurality of pitches at top parts of screw threads in a male screw part 3 formed in a shaft part 2. The bolt is characterized in that the respective notch parts 6 formed over the plurality of pitches are arranged to be greatly inclined at an angle of 40° to 50° to an axial line 12 of the shaft part 2. Since the respective notch parts can be rolled sequentially, it is possible to form the notch parts 6 to be deeper and sharper than conventional ones and to enhance the coating film peeling performance. Also, the coating film peeled can be discharged efficiently as compared with conventional cases.

The production method according to the invention for creating a thread in an elongated semi-finished product comprises the following steps: shaping, especially lengthwise rolling, of at least two lengthwise grooves into a blank and lengthwise rolling of a thread into the areas circumferentially delimited by the grooves. The distance from the beds of the grooves to the axis of the blank is smaller than the distance from the root of the thread to the axis.

The production method according to the invention for creating a thread in an elongated semi-finished product comprises the following steps: shaping, especially lengthwise rolling, of at least two lengthwise grooves into a blank and lengthwise rolling of a thread into the areas circumferentially delimited by the grooves. The distance from the beds of the grooves to the axis of the blank is smaller than the distance from the root of the thread to the axis.