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Bimetal self-drilling screws for metal roofing steel framing and industrial construction

Custom Bi-Metal Self-Drilling Screws

Bimetal self-drilling screws combine a corrosion-resistant stainless steel body with a hardened carbon steel drill point, giving buyers both long-term rust protection and fast drilling performance in metal-to-metal fastening applications.

DISLAB Precision supplies custom bimetal self drilling screws for metal roofing, steel framing, solar mounting, HVAC systems, cladding, facades and industrial construction. The self-drilling point cuts into steel without pre-drilling, while the stainless steel section improves service life in outdoor, coastal and corrosive environments.

✔ Metal Roofing • Steel Framing • Solar Mounting • HVAC • Industrial Construction
Bimetal self-drilling screw structure with stainless steel head and hardened drill point
① Stainless Steel Head (Corrosion resistant) ② Hardened Carbon Steel Drill Point (Self-drilling)

Core Product Specifications

For a custom bi-metal self-drilling screw request, specify the diameter, length, head style, drive type, coating, washer, packaging, and project requirements. Include the required quantity and delivery schedule for review.

If you are comparing listed material, size, and drill-point configurations first, see our bi-metal self-drilling screw product specifications before preparing a custom request.

ParameterSpecificationDescription
Product NameBimetal Self-Drilling ScrewsDual-material self-drilling screws for metal fastening
Model NumberCustom Bi-Metal Self-Drilling ScrewsOEM dimensions, head styles and packaging available
StandardsSpecify the required standard and edition for the selected configurationConfirm applicable thread and dimensional requirements during project review
ApplicationConstruction & Industrial UseMetal roofing, steel framing, solar mounting, HVAC, cladding and general industrial fastening

Detailed Customization Options

Available dimensions, thread types, drive options and head styles for industrial and OEM orders.

Specification CategoryAvailable Options
TypeHex washer head, hex flange head, flat countersunk head, Phillips drive, Torx drive and custom bimetal self-drilling screws
Length55 mm, 70 mm, 80 mm, 90 mm, 100 mm, 120 mm, 150 mm, 170 mm, 180 mm, 200 mm, 220 mm
(Custom range: 10–200 mm)
Thread SizeMetric: M2.5, M3.5, M3.9, M4.2, M4.8, M5.5, M6, M6.3
Imperial: #5, #6, #8, #10, #12, #14, 1/4″

* Other sizes, coatings, washers, drill point types and drive types are available upon request.

Long hex flange bimetal self-drilling screws for steel construction

Engineered for Extreme Durability

Dual-material construction gives these stainless steel self-drilling screws the drilling strength of a carbon steel point and the corrosion resistance of stainless steel. The drill point cuts through metal surfaces quickly, reducing installation time and labor cost.

For outdoor roofing, coastal construction, solar brackets, and facade systems, select the material, finish, and washer configuration for the service environment and installation requirements. Hex washer head, flat countersunk, Phillips and Torx options are available to match tools and installation requirements.

Custom project requirements: specify screw length, thread size, head type, coating, bonded washer, drive type, packaging, and carton labeling for review.

Key Selling Points

  • Dual-material construction: stainless steel body + hardened carbon steel drill point
  • No pre-drilling needed for many metal fastening applications
  • Corrosion protection selected for the material, finish, and service environment
  • Multiple drive types: hex washer head, Phillips, Torx and custom options
  • Custom project review: sizes, coatings, washers, lengths, and packaging
  • Suitable for roofing, steel framing, solar mounting, HVAC and industrial projects

Precision Craftsmanship

Detailed views of our bimetal self-drilling screws, engineered for fast metal drilling, corrosion resistance and long-term installation performance.