Self-Drilling Screw DIN 7504

Case-hardened self-drilling screw that drills, taps and fastens 1–6 mm steel in one pass.

Size range: #8 – #14 (4.2 – 6.3 mm)
Lengths: 13 – 100 mm
Property class: Case-hardened C1022 · A2
Lead time: 15 – 20 days
Packaging: 15 kg carton, 48 cartons per pallet
Weight: 0.0068 kg/pc at #10 × 25

Finishes quoted

Zinc plated + wax
Zinc flake
Stainless passivated

Minimum order 20,000 pcs

Pack multiple 5,000 pcs

Quantity (pcs)

Add 80,000 pcs to reach the next break at $0.015/pc.

Qty (pcs)	USD / pc	Line value
20,000	$0.018	$360.00
100,000	$0.015	$1,500.00
400,000 +	$0.013	$5,000.00

Estimated line value $360.00

$0.018/pc · FOB Ningbo

Ask a question

No payment online. Submit an RFQ and a quote with freight, duty basis and lead time comes back within one business day.

Detail

What the drawing controls.

C1022 wire, case-hardened to HRC 52–56 at the drill point with a ductile core so the head does not snap under torque. Drill-point geometry is held to ±0.05 mm so the screw starts without walking. Zinc plated with a wax topcoat for consistent driving torque.

Typical applications

Roof and façade sheeting
HVAC ducting
Light-gauge steel framing

More on the family: how to specify screws →

Specification — TL-SD7504
Standard	DIN 7504 K/N
Thread	Self-tapping, type K
Size range	#8 – #14 (4.2 – 6.3 mm)
Lengths	13 – 100 mm
Property classes	Case-hardened C1022, A2
Finishes	Zinc plated + wax, Zinc flake, Stainless passivated
Minimum order	20,000 pcs
Pack multiple	5,000 pcs
Lead time	15 – 20 days
Packaging	15 kg carton, 48 cartons per pallet
Unit weight	0.0068 kg/pc at #10 × 25
Certificates	DIN 7504 · RoHS · REACH

Before the PO

What to specify when you order this part.

Send these six lines with the enquiry and the first reply is a price, not a question.

Standard or drawing — DIN 933, ISO 4032, ASTM A193 B7 — or a dimensioned PDF/STEP.
Size and length — Thread size, length, and the length convention the drawing uses.
Property class — 4.8, 8.8, 10.9, 12.9, A2-70, A4-80 — and the joint’s preload, if it has one.
Finish — Zinc trivalent, hot-dip galvanized, zinc flake, black oxide, plain.
Quantity — Per size, per shipment, and annual volume if you have it.
Destination — Port or city and the Incoterm, so freight is in the first number.

Paperwork

What ships in the carton.

Documents are issued per lot, not per year. The lot number on the label is the key to all of them.

Document	Covers
EN 10204 3.1	Mill test certificate for the wire rod heat — chemistry and mechanical properties.
ISO 898-1 / -2	Tensile, proof load and hardness results for the production lot.
Coating report	Thickness readings per plating batch, with the salt-spray coupon reference.
FAI / PPAP 3	Ballooned drawing and full dimensional report. On request, before the run.
RoHS · REACH	Declaration of conformity for the coating and material.
Packing list	Lot number, carton count, gross and net weight, HS 7318 for the broker.

Duty, origin and the full document list →

Before you order

Questions the sales desk actually gets.

Anything else, email matrixgrowth@foxmail.com — a person answers, usually inside a shift.

What is the minimum order quantity for this part?

This SKU starts at 20,000 pcs and steps in multiples of 5,000. The stepper will not accept a smaller quantity, and the quote desk will not quietly re-quote one.

Can I get samples before ordering?

Up to five pieces from current stock are free; you cover the courier. For a production-representative sample from a new die, allow 5 – 8 working days and a tooling charge that is credited against the first order.

Which documents ship with the lot?

EN 10204 3.1 for the heat, an ISO 898 test report for the lot, and coating thickness with the salt-spray coupon. FAI and PPAP level 3 are quoted separately because they are built per part number.

Which Incoterms do you quote?

FOB Ningbo or Shanghai as standard, CIF to your port on request, and DDP where we have a cleared forwarder. The RFQ form asks for your port so the first quote already includes freight.

How is the unit price calculated?

From the break at or below your quantity — not an average. Quantities between breaks pay the lower break’s price, which is why the line total is recalculated on the server when you submit.

Can you make a non-standard length or thread?

Yes. Send the drawing, or the standard plus the deviation. Tooling is quoted separately, and we will say plainly if the tolerance is outside what cold heading can hold.

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