MGM Mega GridLock Mill

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120 in stock

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$18.35 $15.75
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MGM Mega GridLock Mill

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MGM Mega GridLock Mill Finish

The Mega-Gridlock is designed for permanent installations in studios and theaters. It joins 2 overlapping pipes together in a 90 degree joint. The side grooves act as a wrench, keeping the nut from turning during installation.

Fastens any combination of 1-1/2" pipe (1.9" OD), 1-1/4" pipe (1.66" OD), and 2" OD Tube. (Tight fit on 2" OD tube)

Tighten the bolts to 11 foot pounds, which is about as tight as as can be done with a 6" hex key wrench.

Download Spec Sheet (PDF)
Download (PNG)
Download Mega-Gridlock Cut Sheet (PDF)
Minimum Size  1.25" pipe, (1.66" OD)
Maximum Size  1.5" pipe, (1.90" OD), 2" OD tube
Working Load Limit  1250 lb 568kg

4 each – 5/16″ × 2″ socket head cap screws
4 each – 5/16" Nylock nuts

Dimensions  3.65″ × 3.65″ x 4.375 tall max (.375" plus the thickness of the 2 pipes joined.)
Weight  1.03 lbs.
Case Quantities  12

Order Codes

MGB Mega-Gridlock, Black Anodized
MGM Mega-Gridlock, Silver
MGMSS Mega-Gridlock, Stainless Steel Hardware, Silver
MGW Mega-Gridlock, White Powder Coat

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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