DIN 7504K High Hardness SS410 Hex Self-Drilling Screws for Metal Bonding

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NINGBO YONGBIAO FASTENER CO.,LTD

City: ningbo

Province/State:zhejiang

Country/Region:china

Tel:+86--18658229310

Contact Person:
Ms.Amylin View Contact Details

DIN 7504K High Hardness SS410 Hex Self-Drilling Screws for Metal Bonding

Brand Name	YB
Model Number	DIN 7504K
Certification	ISO9001,IATF16949
Place of Origin	ZheJiang,China
Minimum Order Quantity	20000
Price	ZheJiang,China
Payment Terms	T/T
Supply Ability	5000Tons/year
Delivery Time	7-25DAYS
Packaging Details	5000-10000/box
Head type	Hex Head
Finish	Dacromet.,as per customers' requirement,Per drawing request,Natural,zinc plated
Packing	Bulk or Small boxes.then in carton .pallet,Bulk,box packing,Color box,pallet
Grade	10.9,8.8,4.8,4.8/ 8.8/ 10.9/ 12.9 Ect,6.8
Sample	Avaliable (shipping costs needed),if we have the tools available,for free in stock,free,Available free within 7days
Thread type	Coarse thread

Detailed Product Description

DIN 7504K High Hardness SS410 Hex Self-Drilling Screws for Metal Bonding

High Hardness 410 Stainless Steel Self-Drilling Screws: DIN 7504K for Metal Bonding

Product Overview

DIN 7504K Stainless Steel 410 Self-Drilling Screws with Hex Washer Head

Standard: DIN7504K

The DIN 7504K self-drilling screw is a high-performance industrial fastener characterized by its hexagonal washer head and specialized drill point. Manufactured from Grade 410 stainless steel, these screws are engineered to drill their own pilot hole, tap a mating thread, and provide a secure fastening solution in a single operation. Grade 410 is a martensitic stainless steel that can be heat-treated, making it significantly harder than 304 or 316 grades, specifically for metal-to-metal applications.

Core Features

Exceptional Hardness: Unlike 300-series stainless steel, 410 grade can be hardened through heat treatment, allowing the screw to penetrate carbon steel sheets and harder substrates without tip burnout.
Time-Saving Efficiency: Integrated drill point eliminates the need for pre-drilling and hole alignment, drastically reducing installation time and labor costs.
Corrosion Resistance: Provides reliable protection against atmospheric corrosion, water, and mild chemicals, superior to standard carbon steel fasteners in humid environments.
High Torque Strength: Hexagonal head design ensures maximum torque transmission and prevents cam-out during high-speed installation with power tools.
Integrated Sealing: Often used with EPDM bonded washers to provide leak-proof seals, critical for outdoor and roofing applications.

Application Scenarios

Steel Construction & Metal Framing: Ideal for fastening metal sheets to steel purlins or sub-structures in industrial buildings.
Roofing & Cladding: Widely used in metal roof panels and wall cladding systems where weather resistance and structural integrity are paramount.
HVAC Systems: Used for securing ductwork and mounting equipment components in heating and cooling systems.
Automotive & Machinery: Employed in assembly lines where high-speed fastening into metal frames is required.
Solar Energy Systems: Mounting solar panel brackets to aluminum or steel support rails.

Technical Specifications

螺纹规格	ST2.9	ST3.5	(ST3.9)	ST4.2	ST4.8	(ST5.5)	ST6.3
P \| 螺距	1.1	1.3	1.3	1.4	1.6	1.8	1.8
a \| max	1.1	1.3	1.3	1.4	1.6	1.8	1.8
c \| min	0.4	0.6	0.6	0.8	0.9	1	1
dc \| max	6.3	8.3	8.3	8.8	10.5	11	13.5
min	5.8	7.6	7.6	8.1	9.8	10	12.2
e \| min	4.28	5.96	5.96	7.59	8.71	8.71	10.95
k \| max	2.8	3.4	3.4	4.1	4.3	5.4	5.9
min	2.5	3	3	3.6	3.8	4.8	5.3
kw \| min	1.3	1.5	1.5	1.8	2.2	2.7	3.1
r \| max	0.4	0.5	0.5	0.6	0.7	0.8	0.9
s \| max	4	5.5	5.5	7	8	8	10
min	3.82	5.32	5.32	6.78	7.78	7.78	9.78
dp	2.3	2.8	3.1	3.6	4.1	4.8	5.8
Drilling range	0.7~1.9	0.7~2.25	0.7~2.4	1.75~3	1.75~4.4	1.75~5.25	2~6

Packaging Options

Carton Packaging

Bolts are packed in neutral packaging boxes, with standard quantities arranged in small cartons. The exact number of units per carton will be confirmed with the customer to align with their specific requirements. Customized packaging configurations are available upon request.

Outer Carton Box Packaging

The small cartons are then consolidated into larger master cartons for secure transportation and storage. The quantity per master carton can be customized based on client specifications or aligned with standard logistical requirements.

Pallet Packaging

The palletized units are securely wrapped with waterproof film and reinforced with packaging straps. Customer-specific shipping marks or labels are affixed to each pallet, ensuring clear identification and compliance with logistics requirements. This final packaging stage guarantees weather-resistant protection and stability during transportation.

Product Tags: DIN 7504K SS410 self-drilling screws High hardness metal bonding screws Hex self-drilling screws with warranty

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DIN 7504K High Hardness SS410 Hex Self-Drilling Screws for Metal Bonding

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