Pony Tools 6709 9in. Heavy Duty Press Screw Artisans will appreciate this Jorgensen-style 9" Heavy-Duty Press Screw from Pony Tools For use as a panel clamp for custom jigs for all types of gluing, veneering, welding and other assembly operations Large, cast-iron swivels permit easy installation, while threaded bushings drive into a 1" hole If necessary, the bushing may be further secured with separately available screws 11/16" diameter cold-drawn steel screw with smoothly cut Acme threads