Question 1

How can I install in an aluminum pergola?

Accepted Answer

1. Pre-drilling 2.6-3mm; 2. Tighten with a wrench or screwdriver; In addition, the thickness of the aluminum plate of the aluminum pergola determines the load-bearing capacity of the hook, and it is generally not recommended to hang items over 15 pounds on the aluminum pergola.

Question 2

I received my today however, its missing the wing nutdriver. What do i need to do to have this sent?

Accepted Answer

Send a response to amazon that you want these hooks replaced or returned as some of the parts are missing.  More than likely, that info will result in the missing item being sent to you

Question 3

Will a 3/8" diameter led tube light be able to slide into it and let the retainer catch close fully?

Accepted Answer

I measured the opening with the clip (catch) pushed all the way back and it is 1/2 inch. Plenty of room to get it in.
The trick is getting the retracted clip (catch) past it once it's in. That is your question. 
The clip at its at its narrowest point when you are opening or closing it is 3/8 inch.
I would say that if your advertised 3/8" tube light,  is actually 3/8 inches,  you should be good to go. 
Even if it was slightly bigger, it should smoosh through. All the rope lite type stuff I've seen is soft and pliable. Check yours for squishiness.  I'm no expert. Actually I haven't purchased or touched a tube lite or rope lite for at least 40 years. 
I say yes.... should fit nicely.

Question 4

Can you install these on aluminum pergola if you pre-drill the hole?  If so, what drill size is recommended?

Accepted Answer

Yes, the pre-drilled hole is 3mm, if you want to be more reliable, it can be slightly smaller, such as 2.6-2.8mm. However, it is not recommended to hang heavy objects.

ASIN	B08RXVW757
Additional Features	Adjustable Easy Install, Rust Resistant
Best Sellers Rank	#108,730 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,736 in Utility Hooks #2,441 in Industrial Hooks #48,656 in Hardware
Brand Name	BEHENO
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (7,480)
Finish Types	Powder Coated
Item Dimensions	2.2 x 1.14 x 0.34 inches
Item Weight	1.6 ounces
Manufacturer	Beheno
Manufacturer Part Number	BH0120B
Material Type	Alloy Steel
Maximum Weight Capacity	40 pounds
Maximum Weight Recommendation	40 pounds
Minimum Weight Capacity	40 pounds
Model Number	BH0120B
Mounting Type	Ceiling Mount
Number of Hooks	20
Product Style	Garden
Recommended Uses For Product	Hangers,Screw Hooks,Ceiling,Outdoor
Shape	Tree
Surface Recommendation	Wood, Metal, Ceiling
UPC	605660826696
Unit Count	20 Count

20 PCS Q-Hanger, Screw Hooks for Outdoor String Lights, Safety Buckle Design, Easy Release

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