Wafer Head Self Drilling Screws

Product Description

Wafer head self drilling screws are specialized fasteners. They are designed for efficient, single-step fastening of metal components in construction and industrial applications.

Unlike traditional screws that require pre-drilled pilot holes, the self-drilling point on these screws drills its own hole as it is driven. This significantly reduces installation time and labor costs.

The defining characteristic of the wafer head is its low-profile, wide diameter design. This head style provides an increased bearing surface compared to standard pan or flat heads. It distributes clamping force over a larger area to prevent pull-through in thin sheet metal and drywall applications.

This makes them ideal for assembling light gauge steel framing, securing drywall furring channels, and attaching metal sheathing.

Wafer Head Self Drilling Screws

What Materials Are Wafer Head Self Drilling Screws Available In?

The quality and performance of these screws depend heavily on their construction materials and coatings.

Zinc plated coating offers standard corrosion protection with a bright finish. It is cost-effective and best for interior use in dry environments.

Yellow zinc coating offers enhanced corrosion resistance with a distinctive golden color. It is best for general construction and moderate moisture exposure.

Stalgard coating offers premium 1,000 to 2,000 hour salt spray protection with galvanic compatibility. It is best for coastal environments, aluminium applications, and curtain walls.

What Are the Key Dimensions and Specifications?

The head type is wafer head, which is low-profile with a wide bearing surface. The drive type is #2 Phillips recess as standard.

The thread type is single lead and self-tapping. The point type is self-drilling with #2 or #3 point options.

The material is hardened carbon steel. Case hardness is minimum Rockwell C44. Head diameter for #8 size is 0.42 to 0.44 inches.

Standards compliance includes ASTM C1002-98, ASTM C1513, IFI-113, and SAE J78.

Wafer Head Self Drilling Screws

How Do I Choose the Correct Drill Point Size?

The point of a wafer head self drilling screw is designated by a number that indicates the thickness of metal it can effectively penetrate.

A #2 point has a maximum metal thickness of 0.5mm to 0.7mm. It is best for light-gauge steel, drywall profiles, and thin steel.

A #3 point has a maximum metal thickness of 2.5mm to 3.0mm. It is best for steel framing components and structural steel connections.

What Are the Benefits of the Wafer Head Design?

A common question concerns the unique wafer head profile. The wafer head offers several distinct advantages.

Large bearing surface means the wide, flat head distributes clamping force. This prevents pull-through in thin sheet metal and gypsum boards.

Low profile means the shallow head height allows the fastener to sit close to the work surface. This makes it ideal for applications where the screw will be covered.

Clean appearance means the smooth head provides a finished, professional look. It is less obtrusive than traditional pan-head screws.

What Are the Primary Applications for Wafer Head Self Drilling Screws?

The wafer head self drilling screw is an indispensable fastener in modern construction and fabrication.

For drywall partitions and ceilings, it assembles light-gauge metal framing studs and channels beneath plasterboard. For steel framing, it fastens components in cold-formed steel construction for residential and commercial buildings.

For metal-to-metal fixing, it secures sheet metal, roof panels, steel profiles, and aluminium components. For curtain walls and rainscreens, it provides critical structural fastening in building envelope systems.

For general construction, it attaches miscellaneous building materials to steel substructures.

What Certifications Ensure Quality and Compliance?

High-quality wafer head self drilling screws are tested and certified to meet rigorous industry standards.

ICC-ES ESR provides evaluation service reports for structural code compliance in the US. ASTM C1513 is the standard specification for steel drill screws for cold-formed steel framing connections.

RoHS compliance ensures the finish is environmentally safe by restricting hazardous substances.

Wafer Head Self Drilling Screws  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