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| Style No. 3900 Jorgensen Steel Bar Clamps |
Style No. 3900 is a sliding-head design; the sliding head is threaded to accommodate
the screw. All adjustments are made in the movable sliding head, making this style
fast-acting. Multiple-Disc-Clutch holds securely at any point along the bar. Reach -
3-1/2" from bar to center of screw. Bar - 1" x 5/16" round-edge, high-carbon steel;
100,000 lbs psi tensile strength. Screw 1/2" diameter cold-drawn steel with special,
smoothly cut ACME threads; handle - varnished hardwood with plated steel ferrule.
Swivel - 1-1/4" diameter exclusive JORGENSEN design with steel internal tooth washers
for positive "stay-on" power.
the screw. All adjustments are made in the movable sliding head, making this style
fast-acting. Multiple-Disc-Clutch holds securely at any point along the bar. Reach -
3-1/2" from bar to center of screw. Bar - 1" x 5/16" round-edge, high-carbon steel;
100,000 lbs psi tensile strength. Screw 1/2" diameter cold-drawn steel with special,
smoothly cut ACME threads; handle - varnished hardwood with plated steel ferrule.
Swivel - 1-1/4" diameter exclusive JORGENSEN design with steel internal tooth washers
for positive "stay-on" power.
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