NM
not bad, but not firm
we bought a dozen of this clamp, because the price is ok
but i found a few disadvantages
first when i put screw through clamp and U steel of moving head i cant turn the main screw so i need to put washer beetwen, and than when i turn this main screw till the end movg head is not firmly on truss you can swing them. So it do the job, but there are and better clamps.
but i found a few disadvantages
first when i put screw through clamp and U steel of moving head i cant turn the main screw so i need to put washer beetwen, and than when i turn this main screw till the end movg head is not firmly on truss you can swing them. So it do the job, but there are and better clamps.
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