Countersunk Self Drilling Screw

Product Details

Countersunk Self Drilling Screw is supplied for roofing sheets, light steel framing, drywall, wood panels, and construction fastening applications. The current supply reference is DIN 7504 / ISO 15482 / GB / Customized, with Carbon Steel / Stainless Steel, Zinc Plated / Ruspert / Dacromet / Plain, and M3.5-M6.3 #6-#14.

Final dimensions, tolerances, grade or class, coating system, matched components, inspection documents and packing must be confirmed against the purchase order, approved drawing or project specification before production.

Selection & Use Steps

Confirm the base material, total fastening thickness and service environment.
Select the head, drive, thread, point or drilling capacity, washer and finish required by the application.
Verify tool, bit and installation direction; keep the screw perpendicular to the work surface.
Drive at a controlled speed and stop after the head or sealing washer is correctly seated.
Inspect seating, coating damage and joint condition; replace stripped or over-driven screws.

Technical Drawing

Countersunk self-drilling screw technical catalog sheet with head-specific dimensions and reference geometry

Countersunk length l includes the head, unlike the under-head length convention used for the pan-head reference. Confirm countersink geometry, drive, thread diameter, drill point and material thickness. Ribs, wings and drill capacities are product-specific and are not implied by this reference.

The illustration is a dimension-selection reference, not a manufacturing drawing and not to scale. Final geometry, tolerances, material, finish and mating-part fit must follow the buyer-approved drawing and applicable standard.

Application Environment

Suitable application depends on the confirmed material, grade, finish and project design. Review exposure to moisture, chemicals, salt, temperature, vibration and dissimilar metals before selection.

For outdoor or corrosive service, confirm that the selected coating or stainless grade is compatible with the required service life and installation method.

Installation & Handling Precautions

Do not mix grades, heat numbers, thread series or nut classes during storage and installation.
Protect threads and coatings from impact, contamination and uncontrolled repair.
Confirm nut and washer compatibility, coating allowance and free thread engagement before assembly.
Do not apply a generic torque value; tightening depends on lubrication, coating, joint design and the approved engineering procedure.
Replace components with damaged threads, uncertain identification or unacceptable coating condition.

RFQ Checklist

Product name and governing standard: DIN 7504 / ISO 15482 / GB / Customized
Grade, class or material: Carbon Steel / Stainless Steel
Diameter, thread, length and relevant dimensions: M3.5-M6.3 #6-#14
Surface finish or coating: Zinc Plated / Ruspert / Dacromet / Plain
Quantity, matched nuts or washers, and packaging requirement
Required MTC, heat traceability, inspection or third-party documentation
Application, destination and any approved drawing or project specification

Product reference gallery

Form and finish reference; final compliance follows order documents.

Ordering framework

Confirm the specification before quotation.

This product page identifies the available product family and basic supply range. Final compliance depends on the exact standard, grade, dimensions, finish, mating components, tests and documents stated on the purchase order or approved drawing.

01Standard and editionState the governing product standard, drawing or approved equivalent.

02Grade and classConfirm material grade, property class, condition and any supplementary requirement.

03Size and threadDiameter, pitch or TPI, thread series, fit or tolerance and handedness where applicable.

04Length and geometryOverall or effective length, head or end style, thread length and drawing dimensions.

05Finish and assemblyCoating standard, thickness or color, lubrication and mating-part compatibility.

06Quantity and evidenceLot quantity, packing, marking, MTC, inspection scope and destination requirements.

Request this product with a complete specification.

Product · standard · grade · dimensions · finish · quantity · documents · destination

Attach drawings or a size list in your email or WhatsApp conversation. State any required tests or documents for confirmation.

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