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.
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.
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.
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.
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
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







