Shanghai Zinsn Industrial Co., Ltd. · Shanghai & Haiyan, China +86 21 6487 6003 [email protected]

Truss Head Self-Drilling Screw

Wide truss head with Phillips drive. Distributes load on lath, mesh and thinner sheet materials.

Truss head self-drilling screw with wide Phillips drive head
Self-Drilling Screws

Specification

HeadTruss, wide profile
DrivePhillips
PointSelf-drilling
Diameter4.2 – 6.3 mm (#8 – #14)
Length13 – 80 mm
Drill capacity1.5 – 5 mm steel, depending on flute
MaterialHardened SAE 1022 carbon steel
StandardsDIN 7504K, DIN 7504N, ISO 15480

Custom sizes, finishes and OEM packaging available. Samples shipped within 5 working days of approval.

Why it is built this way

Engineering notes

Truss heads exist to solve one problem — small holes in weak material. Lath, expanded mesh, perforated sheet and thin cladding all have very little material immediately around a fixing, and a narrow head simply pulls through. The truss profile widens the bearing circle substantially while staying low enough not to snag.

Paired with a drill point it becomes a one-pass fixing for mesh and lath over steel framing, which is where most of this line ends up.

Key features

  • Wide head spreads load on lath, mesh and perforated sheet
  • Low profile avoids snagging during handling
  • Self-drilling point for direct fixing to steel framing
  • Zinc, Magni and Ruspert finishes available

Typical applications

  • Steel roofing & cladding
  • Pre-engineered buildings
  • HVAC ducting
  • Steel stud framing
  • Sheet metal fabrication
  • Solar mounting hardware

Buyer questions

Frequently asked

Truss head or modified truss head?
Modified truss is flatter and marginally wider. Both spread load; choose on clearance.
Will it hold in expanded mesh?
Yes — that is one of its primary applications. Confirm the mesh aperture so we can advise on head diameter.
Can the head be colour coated?
Colour polymer coating is available. It is normally specified on roofing and cladding fasteners, but we can apply it here too.

Related technical guides

Ordering information. FOB Shanghai or Ningbo as standard; CIF and DDP available. Mill test certificates, SGS reports and dimensional inspection records are issued on request. See available documents.

Quote Truss Head Self-Drilling Screw

Send diameter, length, finish, packaging and target volume. Pricing, lead-time and Incoterms come back within one business day.