Truss head self drilling screw – 1.5inch

Product Description

The 1.5-inch truss head self-drilling screw is a high-performance fastener. It is engineered to combine drilling, tapping, and fastening into a single, efficient operation.

This TEK screw eliminates the need for pre-drilling in light-gauge steel up to 12-gauge. It is a favourite among HVAC contractors, metal framers, and steel stud installers.

The truss head is a key feature. It is designed with a low-profile, extra-wide head that provides a large bearing surface. This design helps prevent pull-through in thin sheet metal and drywall. It also offers a clean, finished appearance.

Truss head self drilling screw – 1.5inch

The wide head also allows for greater clamping force. This makes it ideal for applications where a secure hold is critical.

What Are the Key Features of This Self-Drilling Screw?

A common question concerns its specific construction and capabilities.

The #2 TEK drill point drills its own hole in metal up to 12-gauge, eliminating the need for a separate pilot hole. The truss head provides a wide, low-profile head with a large bearing surface to prevent pull-through and ensure a secure hold.

The #8 diameter and 1.5″ length make it ideal for fastening 16-gauge to 12-gauge steel and joining two layers of metal. The Phillips drive is a standard #2 Phillips recess for compatibility with common impact drivers and drill bits.

The zinc-plated finish offers a good balance of corrosion resistance and cost-effectiveness for indoor applications.

Truss head self drilling screw – 1.5inch

What Are the Mechanical and Material Specifications?

This screw is manufactured from high-quality, case-hardened carbon steel. The material and construction are designed to withstand high torque during installation and resist stripping or breaking.

The material is case-hardened carbon steel. The finish is zinc plated. Thread size is #8. Length is 1.5 inches.

Head style is truss head. Drive type is Phillips or square drive. Point type is #2 self-drilling TEK point. Maximum metal thickness is up to 12-gauge steel. Compliance meets ASTM C1513 standards for steel drill screws.

What is the Difference Between a Truss Head and a Pan Head Screw?

This is a key distinction when selecting the right fastener.

A pan head screw has a flat top and a slightly larger diameter than its body, but it sits higher above the surface. A truss head is significantly wider and lower in profile, providing a much larger bearing surface for clamping thin materials without protruding as much.

This makes the truss head a superior choice for applications where a flush or low-profile finish is required.

Where Should I Use a 1.5 Inch Truss Head Self-Drilling Screw?

The screw is a versatile fastener suitable for a wide range of applications.

For HVAC ductwork, it secures ducts, vents, and supports to metal framing. For steel stud framing, it attaches drywall channels, strapping, and furring to light-gauge steel.

For metal lath and stucco, it fastens metal lath to wood or steel for stucco and plaster applications. For metal roofing, it attaches corrugated metal panels to purlins and girts where compatible with 12-gauge steel.

Truss head self drilling screw – 1.5inch

For general metal-to-metal fastening, it joins thin sheet metal components.

What is the Maximum Drilling Thickness for This Screw?

The #2 TEK point is rated to drill through a maximum combined metal thickness of approximately 0.063 inches, which corresponds to 14-gauge to 12-gauge steel.

Attempting to drill through material thicker than this can damage the drill point and lead to tool failure. For thicker steel, consider a #3 TEK point or a different fastener.

Truss head self drilling screw – 1.5inch available in Mombasa, Kwale, Kilifi, Lamu, Mandera, Marsabit, Isiolo, Meru, Embu, Kitui, Machakos, Makueni, Nyandarua,

Nyeri, Kirinyaga, Murang’a, Kiambu, Turkana, Samburu, Trans Nzoia, Uasin, Gishu, Elgeyo Marakwet, Nandi, Baringo,

Laikipia, Nakuru, Narok, Kajiado, Kericho, Bomet, Kakamega, Vihiga, Bungoma, Busia, Siaya, Kisumu, Homa Bay, Migori, Kisii, Nyamira, Nairobi.

In Nairobi you can find them at: Westlands, Dagoretti,  Lang’ata, Starehe, Kamukunji, Embakasi, and Kasarani, Kibera, Mathare,

Eastleigh, Karen, Lavington, Westlands, Parklands, Runda, South C, South, Ngong Road

In Mombasa you can find us at : Nyali, Mwembe Tayari, Majengo, Likoni ,Bamburi, Miritini