A screw jack can be built to pivot a load by two methods:

Double Clevis Screw Jack The screw jack can be furnished with a clevis at both ends (commonly referred to as a double clevis screw jack). The bottom clevis is welded to the bottom end of an extra strong cover pipe, which is fitted to the base of the screw jack. This bottom pipe still performs its primary function of encasing the lifting screw in its retracted portion. See the double clevis model illustrations on the dimensional drawings (refer to E-Series Screw Jacks brochure (P28)).

Clevis - Trunnion Mounting The screw jack is fitted with the standard clevis end on the lifting screw and a trunnion mount adapter is bolted to the screw jacks base plate. For trunnion mount detail refer to E-Series Screw Jacks brochure (P68).

The design of the structure in which these type of screw jacks is to be used must be constructed so that screw jack can pivot at both ends. Use only direct compression or tension loads, thereby eliminating side load conditions