Overview
Self-tapping screws are threaded fasteners designed to create their own mating threads when driven into pre-drilled holes in metal, plastic, or other materials. Unlike self-drilling screws, self-tapping screws require a pilot hole but eliminate the need for separate tapping operations.
Widely used in metal fabrication, electronics, automotive assembly, construction, and OEM manufacturing, self-tapping screws provide secure fastening with reduced labor and improved production efficiency.
Offshore Milling & Sourcing supports bulk and factory-direct sourcing programs for self-tapping screws, serving distributors, OEM manufacturers, contract assemblers, and procurement teams requiring reliable supply and competitive volume pricing.
Types of Self-Tapping Screws Available
- Type A Self-Tapping Screws
- Type AB Self-Tapping Screws
- Type B Self-Tapping Screws
- Type F Thread Cutting Screws
- Thread Forming Screws
- Pan Head Self-Tapping Screws
- Flat Head Self-Tapping Screws
- Hex Washer Head Self-Tapping Screws
- Truss Head Self-Tapping Screws
- SEMS Self-Tapping Screws
- Custom Per-Print Self-Tapping Fasteners
Drive Styles
- Phillips
- Slotted
- Square (Robertson)
- Torx
- Hex
- Combination Drive
Drive style selection depends on torque requirements, assembly automation, and end-use application.
Specifications
- Diameter Range: #4 – 1/4″ (Metric sizes available)
- Length Range: 1/4″ – 6″+
- Thread Types: Coarse / Fine / Hi-Lo / Thread Cutting
- Point Types: Sharp Point / Blunt Point / Cutting Notch
- Head Styles: Pan / Flat / Truss / Hex Washer / Oval
- Standards: ANSI / DIN / ISO / OEM Specifications
Self-tapping screws are engineered for controlled thread formation and secure fastening in metal and plastic substrates.
Materials
- Low Carbon Steel
- Hardened Carbon Steel
- Stainless Steel 410
- Stainless Steel 304
- Stainless Steel 316
- Brass
- Specialty alloys upon request
Material selection is based on corrosion resistance, strength requirements, and environmental exposure.
Finish & Coating Options
- Zinc Plated
- Yellow Zinc
- Black Oxide
- Mechanical Galvanized
- Epoxy Coated
- Ceramic Coated
- Stainless (Natural Finish)
- Custom corrosion-resistant coatings available
Industries Served
- Automotive
- HVAC
- Electrical & Electronics
- Appliance Manufacturing
- Sheet Metal Fabrication
- Light Construction
- OEM Manufacturing
- Industrial Distribution
Applications
- Thin metal fastening
- Sheet metal enclosures
- Electrical boxes
- Plastic component assembly
- Appliance housing
- Automotive interior fastening
Self-tapping screws are ideal for production environments requiring speed, repeatability, and strong thread engagement.
Strategic Bulk Sourcing Programs
Self-tapping screws are one of the most frequently imported fastener categories due to their high volume and recurring demand.
We support:
- Factory-direct container programs
- Mixed SKU consolidation
- Secondary sourcing strategies
- Annual blanket purchase agreements
- Private label packaging
- Custom per-print manufacturing
Our sourcing programs are structured for distributors and OEMs seeking consistent quality and scalable capacity.
Packaging Options
- Bulk cartons
- Palletized shipments
- OEM packaging
- Retail blister packs
- Custom labeling
- Mixed container programs
Request a Quote
To receive pricing for self-tapping screws, please provide:
- Diameter
- Length
- Head style
- Drive type
- Material
- Finish
- Quantity
- Delivery timeline
Engineering drawings may be submitted for custom parts.
