Will these hold a flagpole (and associated flag movement) mounted onto an outside hollow column?

No. I suggest metal toggle bolts.

how many pounds can these anchors hold?

Threads are sturdily fastened to plasterboard and can hold up to 50-75 lbs

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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3 Sizes Self Drilling Drywall Anchors, 310PCS Nylon Plastic Wall Anchors and Screws for Drywall, No Pre Drill Hole Preparation Required，13x32mm,15x33mm,13x42mm

3 Sizes Self Drilling Drywall Anchors, 310PCS Nylon Plastic Wall Anchors and Screws for Drywall, No Pre Drill Hole Preparation Required，13x32mm,15x33mm,13x42mm

Product ID: 600506071

Details

Brand
Kevinrooty
Colour
White
Item dimensions L x W x H
21.6 x 34.3 x
Material
Nylon 6/6 (PA)
Size
310

🔩No pre-drill needed

🧵310PCS complete kit

⚙️Nylon 6/6 high strength

Description

🔧 Nail it right the first time with zero fuss!

VERSATILE USE CASES - Ideal for hanging decor, fixtures, shelves on drywall, hollow bricks, and lightweight concrete
ALL IN ONE 310 PCS KIT - Everything you need in one sleek box for any drywall project
THREE PRECISION SIZES - Perfect fit for varied wall thicknesses and load needs
EFFORTLESS INSTALLATION - Self-drilling design means no pre-drilling, saving time and hassle
PREMIUM NYLON 6 6 ANCHORS - Superior strength and wear resistance for lasting hold

This 310-piece drywall anchor kit features premium Nylon 6/6 self-drilling anchors and zinc steel screws in three sizes, designed for quick, no-pre-drill installation. Perfect for securely mounting fixtures, shelves, and decor on drywall and other soft materials, it combines durability with convenience in a neatly organized box.

Specifications

ASIN	B0BRHTRRYN
Brand	Kevinrooty
Colour	White
Customer Reviews	4.4 4.4 out of 5 stars (769)
Fastener Type	Hollow
Finish Types	Zinc
Item Diameter	13 Millimetres
Item Dimensions	21.6 x 34.3 x 4.6 Centimeters
Item Shape	Round/Cylindrical
Manufacturer	Kevinrooty
Material Type	Nylon 6/6 (PA)
Model	pengzhang-310
Number Of Items	1
Number of Pieces	310
Outside Diameter	13 Millimetres
Part Number	pengzhang-310
Screw Head Style	Flush Mount
Size Name	310
Thread Size	8
Unit Count	310.0 Count

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