Wood's Powr Grip 4.5 inch Vacuum Suction Cup with 1/4-20 Female Thread

Description

Features & Benefits:
Durable polycarbonate accessory mount with 1/4-20 thread x 3/8" length stud for attaching equipment.
Provides a reliable, temporary vacuum mount, without drilling holes.
Rubber vacuum pad will not mark or damage most surfaces.
Attaches to smooth, nonporous surfaces, whether flat or curved.
Red-line indicator warns user of any significant vacuum loss.
Check valve allows repumping without loss of remaining vacuum.
Lift tabs on pad edges permit instant release.
Supplied with pad protector to prevent damage.
Other stud lengths available to accommodate a wide variety of applications.
Specifications:
Vacuum Pad: Concave, 4-1/2" [11 cm] nominal diameter (model LJ45)
Minimum Radius for Curved Mounting Surface: 12" [305 mm]
Height to Mounting Platform (does not include stud): 2-1/64" [51 mm] on flat surfaces; 2-13/64" [56 mm] on surfaces with maximum curvature.
Load Capacity: 40 lbs [18 kg] per vacuum cup