3in Concave Vacuum Cup with 1/4-20 x 1-1/4in Threaded Stud

Woodfts Powr-Grip 91153 3in Concave Vacuum Cup with 1/4-20 x 1-1/4in Threaded Stud Features: Metal accessory mount with 1/4-20 thread x 1-1/4in Length stud for attaching equipmentProvides a reliable, temporary vacuum mount, without drilling holesRubber vacuum pad will not mark or damage most surfacesAttaches to smooth, nonporous surfaces, whether flat or curvedRed-line indicator warns user of any significant vacuum lossCheck valve allows repumping without loss of remaining vacuumLift tabs on pad edges permit instant releaseSupplied with pad protectorOther stud Length s available Specifications: Vacuum Pad: Concave, 3in 8 cm diameter model TL3Minimum Radius for Curved Mounting Surface: 4in 102 mm Height to Mounting Platform does not include stud: 1-27/64in 36 mm on flat surfaces; 1-11/16in 43 mm on surfaces with maximum curvatureLoad Capacity: 15 7 kg per vacuum cupModel # TL3AMB1420T11L