Your browser is out of date.

You are currently using Internet Explorer 7/8/9, which is not supported by our site. For the best experience, please use one of the latest browsers.

Request a quote
banner
Insulation Fasteners
Back to Previous Home Insulation Fasteners

Insulation Fasteners & Stud Welding Pins

Securing insulation to steel surfaces introduces challenges that extend well beyond installation day. Once equipment enters service, attachment points are exposed to movement, access limitations, and long operating cycles, leaving little room for correction. Insulation fasteners a direct, permanent method of attachment that supports insulation performance over time. At Delta Stud Weld, we fabricate stud welding pins with close attention to welding behavior, dimensional control, and material consistency, so they function as intended once they become part of the structure.

Browse Our Stud Welding Pins
stud welding insulation pin

The Challenge of Attaching Insulation to Steel

Insulation systems often fail at the attachment point, not because of insulation quality, but because fasteners were not matched to the environment they operate in. 

When insulation is installed on the interior or exterior of furnace shells, structural steel, or equipment housings, attachment methods must account for movement, access constraints, and surface conditions. 

Welded insulation fasteners integrate directly with the steel substrate, creating a fixed reference point that supports insulation stability throughout operation and maintenance cycles.

Worker handling an insulation panel with fasteners for welding installation.

Stud Welding Pins We Fabricate

Different insulation systems place different demands on attachment hardware, so we fabricate insulation fasteners for welding that support a wide range of insulation methods and installation conditions.

Cup Head Weld Pins

Cup head weld pins provide increased contact area at the insulation interface, helping maintain retention across flat or curved steel surfaces where uniform support is important.

Double-Pointed Pins

Double-pointed pins are used in applications that require insulation to be secured through layered assemblies or from opposing sides, offering flexibility during installation.

Self-Locking Washers and Speed Clips

These components work with welded pins to secure insulation after placement. They support consistent retention while allowing adjustments during installation without additional tooling.

Lasing Anchors

Lasing anchors are used where anchor-based attachment supports specific insulation systems, particularly in furnace and other high-temperature applications.

Adhesive and Non-Adhesive Backed Pins

Some installations combine welding with alternative attachment approaches. Both adhesive- and non-adhesive-backed pins are available when specified by the application.

We fabricate insulation fasteners in steel grades ranging from mild/carbon to stainless steel, tailored to applications across industries such as oil and gas, forging, and aluminum production. Each material option supports different temperature ranges, corrosion considerations, and service expectations.

Close-up of layered insulation panels with fasteners.

Factors That Influence Fastener Selection

Fastener selection is guided by a combination of installation requirements and operating conditions, including:

  • Insulation thickness and density, which affect pin length and retention method
  • Operating temperature and cycling frequency
  • Base material composition and surface condition
  • Exposure to moisture, corrosive atmospheres, or contaminants

Evaluating these factors together helps ensure the fastener supports the insulation system throughout its service life.

How Welded Insulation Fasteners Are Installed

Insulation fasteners are attached directly to steel using appropriate welding methods. After welding, insulation is placed over the fastener and, when required, secured with washers or clips. The integrity of the weld, fastener geometry, and substrate condition all influence how reliably the insulation will remain in place during service.

Material Options Matched to Operating Conditions

Material selection plays a direct role in how insulation fasteners perform after installation, particularly as exposure conditions change over time. We fabricate insulation fasteners in steel grades ranging from mild and carbon steel to stainless steel. Each material option supports different temperature ranges, corrosion considerations, and service expectations.

Selecting the appropriate steel grade helps reduce long-term issues such as corrosion, fastener degradation, or insulation movement. Environmental exposure, operating temperature, and maintenance access all influence material selection decisions.

Talk With Delta Stud Weld About Your Insulation Fastener Needs

Selecting insulation fasteners is most effective when application details are part of the discussion. Share information about insulation type, welding method, operating conditions, and material requirements, and our team can help match fabrication details with real installation needs.

Request A Quote

Frequently Asked Questions About Insulation Fasteners

Are insulation fasteners compatible with all stud welding equipment?

Most insulation fasteners are compatible with standard stud welding equipment, but power settings, gun type, and surface preparation can influence results. Confirming compatibility early helps avoid inconsistent welds during installation.

Can insulation fasteners be used on curved or irregular steel surfaces?

Yes. Certain fastener styles perform well on curved shells, vessels, or non-flat surfaces. Surface geometry is an important factor when selecting fastener type and head design to maintain consistent insulation contact.

Can insulation fasteners be fabricated to custom specifications?

Yes. Insulation fasteners can be produced to specific lengths, materials, and configurations based on application requirements. Build-to-print fabrication supports projects with non-standard insulation systems or installation constraints.

Insulation Pins

Image Product Spec Sheet

Low Carbon Steel | Stainless Steel | Aluminum. Copper plating standard on Mild Steel Pins.

PINS

D

C

LENGTH

12 GA.        .106

.170

as required

10 GA.        .135

.187

as required

Double pointed studs used to secure all types of insulating materials. All orders for studs include required ferrules.

STUD SPECIFICATION

FERRULE SPECIFICATION

D

Min. L

NO.

B

D

M

F

10 GA.

.135

3/4

FB135

.305

.375

.390

.234

LENGTH

STD. PACK

WGT/CTN

1

1,000

31 lbs

1 5/8

1,000

32 lbs

2

1,000

34 lbs

2 1/2

1,000

35 lbs

3 1/2

500

19 lbs

4 1/2

500

20 lbs

5 1/2

500

21 lbs

6 1/2

500

23 lbs

8

250

13 lbs

 

General Purpose Adhesive

Number per Carton

Container

Approx. Weight per Carton

12

QUART

32 lbs

4

GALLON

38 lbs

Come complete with a special pressure-sensitive adhesive pre-applied to the base plate of the hanger and protected with release paper.

LENGTH

STD. PACK

WGT/CTN

1

1,000

44 lbs

1 5/8

1,000

46 lbs

2

1,000

47 lbs

2 1/2

1,000

49 lbs

3 1/2

500

25 lbs

4 1/2

500

26 lbs

5 1/2

500

27 lbs

6 1/2

500

28 lbs

8

250

17 lbs

Available with paper insulation washers which are beveled to prevent cutting of insulation material.

STANDARD SPECIFICATIONS

TYPE

D

BD

H

Min. L

Max. L

CL10

.135

.375

1.500

.375

no max

CL12

.105

.375

1.500

.375

no max

CL12

.105

.500

1.187

.375

8.00

SELF LOCKING WASHERS (SPEED CLIPS) SPECIFICATIONS

Size of Diameter

2 1/2" x 2 1/2"

1 1/2" x 1 1/2"

1" x 1 1/4"

1 3/4"

1 1/2"

Thickness

.016

.016

.016

.016

.016

Material

Mild Steel

Mild Steel

Mild Steel

Mild Steel

Mild Steel

Plating

Galvanized

Galvanized

Galvanized

Galvanized

Galvanized

Edge

Beveled

Beveled

Beveled

Flat

Beveled

Other Materials Available

 

Alum., S.S.

 

Alum., S.S.

 

Alum., S.S.

 

Alum., S.S.

 

Alum., S.S.

 

SELF LOCKING WASHERS - 12 & 10 GAUGE

Wt/Ctn Steel/Aluminum

Std/Ctn

Size/Diameter

28

1000 pcs

2 1/2 x 2 1/2 sq.

28

1000 pcs

2 1/2 x 2 1/2 sq.

10

1000 pcs

1 1/2 x 1 1/2 sq.

10

1000 pcs

1 1/2 x 1 1/2 sq.

6

1000 pcs

1 x 1 1/4 sq.

6

1000 pcs

1 x 1 1/4 sq.

12

1000 pcs

1 3/4 Dia. Rd.

12

1000 pcs

1 3/4 Dia. Rd.

8

1000 pcs

1 1/2 Dia. Rd.

8

1000 pcs

1 1/2 Dia. Rd.

Lacing Anchor | 1 Hole Lacing Hook | 2 Hole Lacing Washer | Lacing Ring | Capped Self-Locking Washer

Have a Question?