Description

Hex Head Self Drilling Screws

Fuyang Metal is a professional stainless steel hex head self drilling screws manufacturer in China. We supply hex washer head drilling screws with EPDM washers, bonded sealing washers or without washers for global distributors, wholesalers, roofing contractors and industrial buyers.

These screws combine drilling, tapping and fastening in one operation. The drill point creates a hole in suitable metal sheets without separate pre-drilling, while the external hexagonal head provides reliable tool engagement and efficient installation.

Our products are widely used for metal roofing, cladding, steel structures, metal sheet fastening, warehouse construction, machinery and general industrial assembly.

Hex Head Self Drilling Screws Specifications

Product Name	Stainless Steel Steel Hex Head Self Drilling Screws
Standard	DIN 7504-K / ISO 15480 or customized
Material	Stainless Steel SS410, Stainless Steel 304, Stainless Steel 316
Head Type	Hex Washer Head / Hex Flange Head
Drive Type	External Hex Drive
Washer	EPDM Washer, Metal Bonded EPDM Washer,, Nylon Washer or Without Washer
Diameter	3.5mm, 4.2mm, 4.8mm, 5.5mm, 6.3mm or customized
Length	13mm–150mm or customized
Drill Point	#2, #3, #4, #5
Thread Type	Self Tapping Thread, Full Thread or customized
Surface	Plain Stainless Steel, Passivated or customized coating
Packaging	Bulk Carton, Small Box, Pallet or customized export packaging
OEM Service	Custom sizes, washers, packaging, labels and carton marks available

Features and Benefits

• Self drilling point eliminates separate pre-drilling in suitable applications.
• External hexagonal head provides secure tool engagement.
• Suitable for fast installation using electric or pneumatic tools.
• Stainless steel construction provides improved corrosion resistance.
• SS410 offers good hardness and drilling performance.
• EPDM sealing washers help reduce water penetration in roofing applications.
• Multiple drill points are available for different metal thicknesses.
• Custom dimensions, washers and export packaging are supported.

Available Stainless Steel Materials

Our hex head self drilling screws are available in stainless steel SS410 and SS304. Customers can select the appropriate material according to the required drilling performance, corrosion resistance and application environment.

SS410 Hex Head Self Drilling Screws

SS410 stainless steel can be hardened to provide the strength and drill-point hardness required for self drilling applications. It offers a practical balance between drilling performance, mechanical strength and corrosion resistance, making it suitable for metal roofing, steel structures, sheet metal fixing and general outdoor construction.

SS304 Hex Head Self Drilling Screws

SS304 stainless steel provides better corrosion resistance than SS410 and is suitable for humid, outdoor and mildly corrosive environments. Because SS304 is softer and cannot be hardened in the same way as SS410, its drilling capacity depends on the drill-point design and the material being fastened. For demanding steel-drilling applications, a bi-metal construction may be recommended.

How to Choose Between SS304 and SS410

Choose SS410 when drilling performance, hardness and fastening into steel are the main requirements. Choose SS304 when higher corrosion resistance is more important and the application conditions are suitable for its drilling capacity. Please provide the base material and steel thickness so that we can recommend the appropriate stainless steel grade and drill point.

Explore our complete range ofstainless steel self drilling screws, available in different head styles, dimensions, drill points, washers and packaging options.

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Explore our complete range of self drilling screws in different head styles, materials and drill point configurations.

Please contact Fuyang Metal for samples, specifications and bulk quotations.

These screws can be manufactured according to ISO 15480 or DIN 7504-K dimensional requirements.