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Screws · DIN 7504 N / ASTM C1513 · Application guide

What Are Pan Head Self-Drilling Screws (DIN 7504 N) Used For?

Typical applications, the industries that specify pan head self-drilling screws (din 7504 n), and how to choose the right size, material and finish for the joint.

Pan Head Self-Drilling Screws (DIN 7504 N) are used for fixing into sheet, timber or plastic by forming their own thread as they are driven, without a tapped hole. They are manufactured to DIN 7504 N / ASTM C1513, and selection is driven by the screw size, the fit and tolerance the assembly requires, and the service environment.

Primary duty
Fixing into sheet, timber or plastic by forming their own thread as they are driven, without a tapped hole
Governing standard
DIN 7504 N / ASTM C1513
Category
Screws

Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation.

What Are Pan Head Self-Drilling Screws (DIN 7504 N) Used For? application image

The primary duty of Pan Head Self-Drilling Screws (DIN 7504 N) is fixing into sheet, timber or plastic by forming their own thread as they are driven, without a tapped hole. Below: the sectors that specify them in volume, the checklist used to select the right size and material for the application, installation notes, and the known limits of the type.

Typical Applications for Pan Head Self-Drilling Screws (DIN 7504 N)

The most common settings where these are specified:

  • Roofing & cladding: fixing steel sheet and profiles without pilot drilling.
  • Steel framing: light-gauge metal stud and track assembly.
  • General machine building: fastening covers, brackets, motors and sub-assemblies on production equipment.
  • Maintenance & repair (MRO): a stocked size for servicing existing plant where the original fastener spec must be matched.
  • Fabrication & metalwork: bench and on-site assembly of steel frames, enclosures and weldments.

How to Specify Pan Head Self-Drilling Screws (DIN 7504 N) for Your Application

  • Size: Match the size to the mating part — see the dimension table below for each option.
  • Drive & head: Pick the drive (socket, cross, slot) and head style for the tool access and seating surface; a recessed drive resists cam-out under power tools.
  • Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
  • Standard: This product is supplied to DIN 7504 N / ASTM C1513. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.

Installation & Assembly Practice

  • Match the driver exactly to the recess (PH ≠ PZ; hex key sizes per ISO 2936) and keep the tool axial — side load is the main cause of stripped drives.
  • In tapped holes, engage a thread length of at least 1× the nominal diameter in steel, 2× in aluminum.
  • Set power tools to a torque that seats the head without embedding it into the mating surface.

Common Selection Mistakes with Pan Head Self-Drilling Screws (DIN 7504 N)

  • Under-sizing the drive for the installation torque — a small recess at high torque strips before the screw is seated.
  • Using a countersunk head in thin sheet where the countersink removes most of the load-bearing material.
  • Specifying stainless in high-strength duty: A2-70 is roughly class 7 steel, not a 10.9 substitute.

Where Pan Head Self-Drilling Screws (DIN 7504 N) Are Not the Right Choice

Not for high-preload structural joints (use a property-class bolt and nut), and not in thin sheet where a self-drilling or self-tapping type suits better.

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

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The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.

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Specification
Business Information

Dimensions & Specifications (DIN 7504 N / ASTM C1513)

Head formPointMaterial and finishSubstratePre-drilling
pan headintegrated drill tipcarbon steel, zinc platedsteel sheet and purlinsnot required within the point capacity
pan headintegrated drill tipcarbon steel, zinc platedmetal roofingnot required within the point capacity
pan headintegrated drill tipcarbon steel, zinc platedlight steel structuresnot required within the point capacity
Inside the plant

Manufactured in our own plant

This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.

  1. Wire rod feeding into a cold heading machine
    01

    Cold heading

    Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.

    Head dimensions and under-head radius checked at set-up and per shift.

  2. Thread rolling machine producing bolt threads
    02

    Thread rolling

    Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.

    Go / no-go ring gauges to ISO 965 tolerance class 6g.

  3. Baskets of bolts staged for heat treatment
    03

    Heat treatment

    Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.

    Core hardness and tensile tested per lot to ISO 898-1.

  4. Zinc plated bolts in a treatment basket
    04

    Surface treatment

    Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.

    Coating thickness and neutral salt spray hours to ISO 9227.

Frequently Asked Questions

How do I choose the right size of Pan Head Self-Drilling Screws (DIN 7504 N)?

Match the size to the mating part using the dimension table on this page.

What drive type do Pan Head Self-Drilling Screws (DIN 7504 N) use?

Drive depends on the head style — socket (hex key), cross (Phillips/Pozi) or slot. A recessed drive resists cam-out when driven with power tools; check the product head style on this page.

What material should Pan Head Self-Drilling Screws (DIN 7504 N) be for outdoor use?

For damp, coastal or chemical environments specify A4 (316) stainless or a suitably coated steel. For indoor or dry use, A2 (304) stainless or zinc-plated steel is normally adequate.

Are Pan Head Self-Drilling Screws (DIN 7504 N) made to a recognized standard?

Yes — they are manufactured to DIN 7504 N / ASTM C1513, so dimensions are interchangeable between suppliers when you quote the standard on your order.

Can I get a quote for Pan Head Self-Drilling Screws (DIN 7504 N) in the size and material I need?

Yes. Use the technical drawing and quote form on this page to set the size and options, then send the exact configuration to our team for pricing and lead time.