<http://schema.org/description>
"These are out most popular medium-duty steel bar clamps: used by homecrafters, cabinet-makers, woodworkers and metalworkers. The sliding head is threaded to accommodate the screw. All adjustments are made in the movable sliding head, making this style fast-acting, easy to open and close and suitable for &amp;quot;close quarters&amp;quot; clamping. Strong, lightweight steel bars are rust-resistant. Multiple-Disc-Clutch holds securely at any point along the bar. Pads sold separately.&amp;lt;p&amp;gt;&amp;lt;ul&amp;gt;&amp;lt;li&amp;gt;Size: 6&amp;quot;&amp;lt;li&amp;gt;Normal load limit: 600 lbs.&amp;lt;li&amp;gt;Throat/Reach: 2-1/2&amp;quot; from edge of bar to center-line of screw.&amp;lt;li&amp;gt;Bar: 1/4&amp;quot; X 3/4&amp;quot; plated, round-edge, high-carbon steel.&amp;lt;li&amp;gt;Casting: Malleable and/or ductile iron; powder coated orange finish.&amp;lt;li&amp;gt;Screw: 3/8&amp;quot; diameter cold-drawn steel with special, smoothly cut U.S.S. threads; handle: varnished hardwood with plated steel ferrule.&amp;lt;li&amp;gt;Clutch disc: Hardened, plated steel; two clutch discs and one clutch spring constitute the Multiple-Disc-Clutch.&amp;lt;li&amp;gt;Swivel: 3/4&amp;quot; diameter (#37); plated steel; ball-and-socket type."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.grizzly.com/outlet/6-Bar-Clamp/G3539>