bolt 32 to move from the locked position as illustrated in fig1 and 3 on the other hand when the rotary latch lock 40 is positioned with the chordal surface 58 facing the lower face 37 of actuator 34 the slide bolt 32 can move to its retracted or unlocking position illustrated in fig2 and 4 when the slide bolt is held in the locking position of fig1 and 3 vibrational forces do not have any rotational effect on the latch lock 40 and the slide bolt consequently remains locked regardless of the influence of such vibrational forces however the latch lock 40 can be easily rotated by manual gripping of protrusions 59 to enable an unlocking movement of the latch bolt to the position illustrated in fig2 and 4 the embodiment illustrated in fig6 9 is similar to the embodiment of fig1 5 with the latch components comprising a keeper 60 mounted on a fixed panel component 62 a slide bolt guide 64 supporting a slide bolt 66 for axial reciprocation the slide bolt guide 64 has a slot 68 in its outer face through which a lug 69 extends the lug 69 is in facing relation to a rotary latch lock 40 identical to the rotary latch lock of the first embodiment the rotary latch lock 40 is mounted on a u shaped bracket 44 identical to the first bracket 44 extending transversely across the slide bolt guide 64 and supporting the rotary latch lock 40 in exactly the same manner.