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Hex Head Self Drilling Screws with EPDM Washers

Updated 2026-11-04 · Markdown version

Model no. DIN 7504K

US$0.0781,000–9,999 pieces

US$0.057610,000–49,999 pieces

US$0.04850,000+ pieces

MOQ 1,000 pieces · Final price confirmed in your quote

Material: Stainless Steel
Head Style: Hexagonal
Standard: DIN, GB, ANSI, DIN7504K
Grade: A2-70 A4-70
Shape of Head: Hexagon
Customized: Customized
Surface Finishing: Polished
Surface Treatment: Hot Galvanized, Black, Color-Zinc, Blue White Zinc

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Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
Material	Stainless Steel
Type	Hexagon Head With Flange
Model NO.	DIN 7504K
Groove	Hexagon
Connection	Common Bolt
Head Style	Hexagonal
Standard	DIN, GB, ANSI, DIN7504K
Grade	A2-70 A4-70
Shape of Head	Hexagon
Certification	ISO, GS, RoHS, CE
Customized	Customized
Surface Finishing	Polished
Drawings	Accept
Shape	Hexagon Head Drilling Screws with Tapping Screw Th
Sample	in Stock
Delivery Time	3-10 Working Days
Experience	for 30 Years
Surface Treatment	Hot Galvanized, Black, Color-Zinc, Blue White Zinc
Application	Duplex 2205 Stainless Steel DIN 7504 Hex Head Self
Equipments	CNC Lathe, Processing Center, Miller, etc
Transport Package	Plastic Bag, Boxes and Cartons, Pallets, Customize
Specification	ST3.5-ST6.3
Origin	China
HS Code	7318290000
Production Capacity	2000000pieces/Year
Package Size	27.50cm * 25.00cm * 25.00cm
Package Gross Weight	20.000kg
Lead Time	3 days (1 - 1000 Pieces) To be negotiated ( > 1000 Pieces)
ISO 9001	2015
Category	Self-Drilling & Tek Screws

Technical parameters

Standard	DIN7504K
Inside Diameter	ST3.5-ST6.3
Material	SS304,SS316,SS2205,SS2507,SS410
MOQ	1000 pieces
Surface treatment	Hot Galvanized,Black,Color-zinc,Blue white zinc
Package	Plastic bag, Boxes and cartons, Pallets, Customized
Price terms	EXW, FOB, CIF, etc.
Payment terms	T/T, Paypal, L/C, Western union, etc.
Certifications	ISO 9001:2015
Note	Free samples but freight cost is paid by customers(when sample is in stock) Sample fee (when samples need to be customized)

Screw Thread d	ST3.5	(ST3.9)	ST4.2	ST4.8	ST5.5	ST6.3
P	Pitch	1.3	1.3	1.4	1.6	1.8	1.8
h	min	0.6	0.6	0.9	0.9	1	1
dc	max	8.3	8.3	8.8	10.5	11	13.2
min	7.6	7.6	8.2	9.8	10	12.2
k	max	3.45	3.45	4.25	4.45	5.45	6.45
min	3.2	3.2	4	4.15	5.15	6.15
s	max=nominal size	5.5	5.5	7	8	8	10
min	5.32	5.32	6.78	7.78	7.78	9.78
dp	max	2.8	3.1	3.6	4.1	4.8	5.8

Description

Hex Head Self Drilling Screws with EPDM Washers is part of our self-drilling & tek screws range (Screws).

Key details

Type: Hexagon Head With Flange
Standard: DIN, GB, ANSI, DIN7504K
Material: Stainless Steel
Grade: A2-70 A4-70
Head Style: Hexagonal
Groove: Hexagon
Surface Treatment: Hot Galvanized, Black, Color-Zinc, Blue White Zinc
Connection: Common Bolt

Available configurations include material, head style, standard, grade and shape of head. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1,000 pieces at US$0.048 – 0.078 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Hex Head Self Drilling Screws with EPDM Washers?

The listed minimum order is 1,000 pieces, at US$0.048 – 0.078 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

How does the price change with quantity?

Volume pricing: US$0.078 for 1,000–9,999 pieces; US$0.0576 for 10,000–49,999 pieces; US$0.048 for 50,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Hex Head Self Drilling Screws with EPDM Washers?

Type: Hexagon Head With Flange; Standard: DIN, GB, ANSI, DIN7504K; Material: Stainless Steel; Grade: A2-70 A4-70; Head Style: Hexagonal; Groove: Hexagon. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, head style, standard, grade and shape of head. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other self-drilling & tek screws are available?

The Self-Drilling & Tek Screws category lists 5,114 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/self-drilling-tek-screws/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

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US$0.048 – 0.078MOQ 1,000 piecesGet a quote WA