Swivel clamps LST of die-cast aluminum have a slitted clamping point machined with cutting methods. The fastening lug is smooth, has a centering ring or has crown serration that may be countersunk or raised.
The fastening lug is centered and forms a T-shape relative to the axis of the bore, which receives typically available construction tubes with full contact over the entire cross-section.
The screw point of the fastening lug receives a hex head or hex socket cap screw or a lock nut for fastening any additional parts. At the clamping point, a hex socket cap screw or an adjustable hand lever reduces the bore cross-section for clamping.
By combining swivel clamps that have identical fastening lugs and corresponding centering ring serration, it is possible to assemble any type of joint clamp.
Adjustable hand levers are intended for repeated, tool-free clamping. Under the designation HSK, these are available separately for individual use and in other designs. Compared with the tool-operated hex socket cap screw, the clamping force achievable with an adjustable hand lever is lower due to the shorter lever length.