Internet #302244947

Model #HDPMF3500

3-1/2 in. Plastic Masonry Fastener

  • Helps attach 1-1/2 in. to 2 in. rigid insulation or mineral wool
  • Thermally efficient plastic design resists rust and corrosion
  • Designed for use in 5/16 in. Dia hole in concrete or CMU block
  • See More Details

Frequently Bought Together

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Price:
$12551

Product Overview

The 3-1/2 in. Plasti-Grip Plastic Masonry Fastener (PMF) is used to attach 1-1/2 in. to 2 in. rigid insulation or mineral wool to concrete or CMU block. Simply pre-drill a 5/16 in. diameter hole through the insulation into the concrete/CMU, insert anchor and tap flush with a hammer. This anchor provides a fast and efficient way of mechanically attaching insulation.
  • 250-pieces per box
  • No screws or pins required
  • Will not rust or corrode
  • Thermally efficient all plastic design
  • 3-1/2 in. length
  • 2-3/8 in. Dia head
  • Insulation fastener

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Name2 in. Plastic Masonry Fastener3-1/2 in. Plastic Masonry FastenerMemBrain 9 ft. x 100 ft. Air Barrier with Smart Vapor RetarderRaft-R-Mate 22-1/2 in. x 4 ft. Attic Insulation Rafter Baffle Proper Vents (70-Pieces)
Price
$8560
/box
$12551
/box
$15189
$17900
Ratings
(7)
(46)
(15)
(129)
Insulation Accessory TypeOtherOtherVapor Barrier InsulationRafter Vent
Insulation Features Vapor RetardantPre-Cut,Pre-Cut,Pre-Cut
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Specifications

Dimensions

Product Depth (in.)
17 in
Product Height (in.)
7 in
Product Width (in.)
12 in

Details

Insulation Accessory Type
Other
Insulation Type
Accessory
Returnable
180-Day

Warranty / Certifications

Warranty Information
Manufacturer warrants against product defect only for a period of 1 year

Questions & Answers

10Questions19Answers

Can it be used to fasten 2" expanded polystyrene rigid panel to a foundation wall BY THE EXTERIOR...

Asked by rafaelborja January 22, 2019
4
Answers

would 3 1/2 inches plastic anchors be long enough for 2 1/2 inches foam board

How many to attach on a 4x8 XP’s sheet to concrete basement walk?

Asked by John December 14, 2018
3
Answers

2 if the wall is flat.

How many come in the box

Asked by Russ June 8, 2019
2
Answers

250 pieces

How do I figure out what length fastener I need to purchase?

Asked by Raylle April 23, 2020
2
Answers

I used a 3 1/2 with liquid glue a 28 Oz size. Went up easy. Started with an utility knife but the foam was too thick so I switched to a jig saw and it was much better. I was installing XPS 2" X 4' X 8' The only foam to use. I also sealed the walls with UGL Extreme.

I am looking to stucco the outside of my house. Can I use these anchors to hold the metal lath an...

Asked by dougz December 9, 2020
2
Answers

They designed more holding sheeting on walls in basement. There not designed for exterior use

If you glued the fastener also would the be more secure

Asked by Possible January 27, 2020
2
Answers

You should use screw do wind and weather

how deep of a hole do you need into the concrete. Would a 4 inch 5/16 drill bit be sufficient. th...

Asked by rudy2262 March 23, 2020
1
Answer

Hello, typically we recommend about 1/2" deeper than the shank of the anchor penetration, on solid brick or concrete. So for a 3.5" anchor, a 4" deep hole should suffice. Make sure the dust and debris is adequately cleaned out to prevent the anchor from prematurely bottoming out.

can I get in 2 days

Asked by Jeff November 23, 2018
1
Answer

Jeff, we do not offer express shipping options. However we can get product anywhere in the lower 48 states in under 5 days. Majority of them within 2 days, as we are located in Michigan.

Can i buy a smaller quantity? Like 20-30 pieces?

Asked by Slick December 27, 2019
1
Answer

Hello, unfortunately Home Depot website only sells them in 250 count boxes.

How do you remove these?

Asked by Bas September 21, 2019
1
Answer

Very carefully use a crowbar or flat tool side in it under edge pull it on each side.

3-1/2 in. Plastic Masonry Fastener - page 2

Customer Reviews

  • 46 Customer Reviews
  • 4.7 out of 5 stars overall
100% of customers recommended.
Overall Ratings
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Easy too install. 2 per 4 x 8 sheet of foamboard on flat walls. 3% broke on insertion.
Easy too install. 2 per 4 x 8 sheet of foamboard on flat walls. 3% broke on insertion.
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These work amazingly well to hold something to a block wall. I used them to hold 2" rigid insula...
These work amazingly well to hold something to a block wall. I used them to hold 2" rigid insulation up against a stem wall. One note, you MUST use the specified drill bit size (in this case 5/16") or they won't work. You also must make sure the holes you drill are clear of debris. I used a DeWalt hammer drill and the whole project went quickly.
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These work great on 2" foam sheets, just drill your...
These work great on 2" foam sheets, just drill your hole and tap them in. You will occasionally bend one, just pull it out recheck the hole with the drill and drive another one.
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Worked great on 2" foam board. I suggest buying...
Worked great on 2" foam board. I suggest buying a nicer SDS rotary hammer drill and a higher end bit of you're not going to have a good time.
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Glad I found these for installing XPS board to the...
Glad I found these for installing XPS board to the basement block. So much easier than glue
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These things work great. Perfect for installing inch and a...
These things work great. Perfect for installing inch and a half foam On a cinder block wall
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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So much better than the glue sold for the same...
So much better than the glue sold for the same purpose. Fast and effective. One out of 8 or 10 wouldn’t go into the hole and bent, causing the need for another one to be used in its place. May be lack of proper hole clean out. Will buy again and am recommending to other builders. Jim, Kennedy Bros. Builders
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Very easy to use for attaching foam to brick and cinder block in a crawlspace. Definitely will be...
Very easy to use for attaching foam to brick and cinder block in a crawlspace. Definitely will be using them again.
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Worked great. Drill right through the foam board and hammer...
Worked great. Drill right through the foam board and hammer in.
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