Insulation Fasteners | McMaster-Carr

Filter by

Product Family

Insulation Hanger Studs

Thickness

Washer Type

Screw Size

Length

Material

Construction

For Use In

Color

Finish

Threading

Backing Type

Pin Length

Performance

RoHS

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Exempt

Thread Length

Maximum Temperature

Hanger Stud Type

Minimum Temperature

Base Thickness

48 Products

Washers for Foam Insulation

Mount insulation board to foundation walls, roofing, and framing. These washers have a large surface that distributes holding pressure evenly, so they won't crush or pull through insulation.

Galvanized Steel

More durable than plastic, these washers are strong enough to use with cement board in roofing applications.

ID	Wd.	Thk.	Pkg. Qty.		Pkg.



No. 12, No. 14, No. 15, 1/4"	0.270"	2.875"	0.019"	50	90320A350	000000

Polypropylene

These washers have a large outer diameter that prevents them from pulling through soft insulation.

				Temp. Range
For Screw Size	ID	OD	Thk.	Min.	Max., ° F	Color	Pkg. Qty.		Pkg.



	No. 12, No. 14, No. 15	0.190"	3.000"	0.260"	Not Rated	150	White	25	90320A380	000000

Polypropylene with Prongs


Perforated	Solid

Prongs sink into rigid insulation and hold the washer in place, so it won't shift during installation.

Perforated—These economical washers are best for interior applications.

Solid—When fastened, these washers flex to create a seal around the connection that blocks out air and moisture. They are most often used on exterior walls to attach weather barriers over insulation.

					Temp. Range
	For Screw Size	ID	OD	Thk.	Min.	Max., ° F	Color	Pkg. Qty.		Pkg.
Perforated



		No. 10	0.190"	1.750"	0.180"	Not Rated	150	White	50	90320A410	00000


		Solid



				No. 10	0.190"	2.000"	0.220"	Not Rated	150	Black	25	90320A420	0000

Drilling Screws for Joining Insulation to Metal




Polypropylene Washers	Steel Washer

Secure flat roof insulation and membrane materials. These screws have an oversized shank and threads to keep panels from lifting up in high wind. They drill and fasten in a single step, saving time and effort. The small point penetrates light gauge steel, oriented strand board (OSB), and plywood.

Length is measured from under the head.

Polypropylene Washers—Distribute the load to prevent screws from pulling through insulation.

Steel Washers—More durable than plastic, these washers prevent screws from pulling through insulation. Their hexagon shape works with feeding tools that speed up large-scale roofing jobs.

	Tapping Screws										Polypropylene Washers			Steel Washers
		Head
	Lg.	Dia.	Ht.	Max. Drilling Thk.	Drive Size	Approx. Threads per In.	Certification	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Black Epoxy-Coated Steel







				No. 12 Screw Size

				2 1/4"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	50	90694A111	00000	25	90320A380	000000	50	90320A350	000000


				3"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	50	90694A112	00000	25	90320A380	00000	50	90320A350	00000
				4"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	25	90694A113	0000	25	90320A380	00000	50	90320A350	00000
				5"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A114	0000	25	90320A380	00000	50	90320A350	00000
				6"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A115	0000	25	90320A380	00000	50	90320A350	00000
				7"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A116	0000	25	90320A380	00000	50	90320A350	00000
				8"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A117	0000	25	90320A380	00000	50	90320A350	00000




						No. 14 Screw Size

						2"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	50	90694A118	00000	25	90320A380	00000	50	90320A350	00000


						3"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	25	90694A119	0000	25	90320A380	00000	50	90320A350	00000
						4"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	25	90694A121	00000	25	90320A380	00000	50	90320A350	00000
						5"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	20	90694A122	00000	25	90320A380	00000	50	90320A350	00000
						6"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A123	0000	25	90320A380	00000	50	90320A350	00000
						7"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A124	00000	25	90320A380	00000	50	90320A350	00000
						8"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A125	00000	25	90320A380	00000	50	90320A350	00000
						10"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A126	00000	25	90320A380	00000	50	90320A350	00000




								No. 15 Screw Size

								2"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	50	90694A814	00000	25	90320A380	00000	50	90320A350	00000


								3"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	25	90694A817	00000	25	90320A380	00000	50	90320A350	00000
								4"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	25	90694A820	00000	25	90320A380	00000	50	90320A350	00000
								5"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	20	90694A823	00000	25	90320A380	00000	50	90320A350	00000
								6"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A826	0000	25	90320A380	00000	50	90320A350	00000
								7"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A829	00000	25	90320A380	00000	50	90320A350	00000
								8"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	10	90694A831	00000	25	90320A380	00000	50	90320A350	00000
								10"	0.435"	0.118"	0.047"	No. 3	13	FM Approved	5	90694A834	00000	25	90320A380	00000	50	90320A350	00000

Insulation Hanger Studs

Attach these hanger studs to a flat surface, then press your insulation sheets onto the spikes and secure with a washer (sold separately).

Pin Hanger Studs


Pin Stud with Plain Backing	Pin Stud with Adhesive Backing

Plain Backing—Plain-back studs install with adhesive (sold separately) to uncoated metal, concrete, and masonry. Apply adhesive at temperatures above 40° F.

Adhesive Backing—Adhesive-back studs are for use on indoor metal surfaces.

Pin		Base				Plain Backing			Adhesive Backing
Lg.	Wd.	Lg.	Wd.	Thk.	Material	Pkg. Qty.		Pkg.	Temp. Range, ° F	Pkg. Qty.		Pkg.
1 5/8"	0.105"	2"	2"	0.014"	Steel	100	93610A210	000000	0 to 140	100	93610A310	000000
2 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A220	00000	0 to 140	100	93610A320	00000
3 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A230	00000	0 to 140	100	93610A330	00000
4 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A510	00000	—	—	———	0
5 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A520	00000	—	—	———	0
6 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A240	00000	0 to 140	100	93610A340	00000
7 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A530	00000	—	—	———	0
8 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A540	00000	—	—	———	0
9 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A550	00000	—	—	———	0
10 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A560	00000	—	—	———	0
11 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A570	00000	—	—	———	0
12 1/2"	0.105"	2"	2"	0.014"	Steel	100	93610A580	00000	—	—	———	0

Accessories for Insulation Hanger Studs


Adhesive for Studs with Plain Backing (1 gal. container)	93610A810	Each	0000000
Washers	93610A410	Pkg. of 100	0000
Covers	93610A611	Pkg. of 100	00000

Slotted Hanger Studs

Slot Stud with

Plain Backing

Plain Backing—Plain-back studs install with adhesive (sold separately) to uncoated metal, concrete, and masonry. Apply adhesive at temperatures above 40° F.

Slot		Base				Plain Backing
Lg.	Wd.	Lg.	Wd.	Thk.	Material	Pkg. Qty.		Pkg.
1 7/8"	3/4"	2"	2"	0.021"	Steel	100	93610A710	000000

Accessories for Insulation Hanger Studs