It is really a good idea to replace any self tapping small screws on a recent trailer. Working in the automotive industry, I have noticed that we are importing more and more cheap Asian hardware which is hardly capable of withstanding the force necessary to install them the first time. A lot of it is just plain junk. After all, what kind of quality can you expect when a box of 100 screws costs only about 25 cents wholesale ? That's the figure given to me by a friend in the hardware business on one particular box.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, Teddy (Jack Russell terrier), and Honey (Beagle)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.