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A self drilling screw is a threaded fastener with an integrated drill point designed to penetrate a material and form or engage its own thread during installation. The performance of a self drilling screw depends on the complete product configuration: head design, drive type, drill point, thread geometry, steel grade, hardness, surface treatment, washer material, dimensions and application requirements. This is particularly important for OEM buyers, importers, distributors, roofing companies, construction-product brands and industrial manufacturers.
JLHY manufactures OEM and custom self drilling screws for B2B customers who require specific combinations of screw head, drive, washer, plating and coating. Our product range can be configured around common requirements including pan head, Wafer head, countersunk/CSK head, hex washer head, hex washer flange head, Phillips, Pozi, square drive, PVC washers, rubber washers, EPDM washers, bonded washers, zinc plating, yellow zinc, black zinc, black phosphate, grey phosphate, Ruspert, Dacromet/Dacrotized-type coatings, Xylan and other customer-specified finishes.
Self Drilling Screw Washers: PVC, Rubber, EPDM and Bonded Washers
For many exterior and roofing applications, the washer is as important as the screw itself. A washer can provide additional bearing area and, depending on the material and design, can contribute to sealing around the fastener.
JLHY can supply self drilling screws with different washer configurations according to application requirements.
| Washer Type | Material | Main Characteristics | Typical Applications | Key Buyer Specifications |
|---|---|---|---|---|
| No Washer | — | Screw supplied without a sealing washer; suitable where sealing is not required | General metal-to-metal fastening, machinery, sheet metal, industrial assemblies | Screw size, head type, drive, coating, drill point |
| PVC Washer | PVC | Lightweight polymer washer; can provide additional bearing area and basic sealing functionality | General construction, sheet metal, roofing and enclosure applications | PVC grade, OD, ID, thickness, hardness, color, temperature requirement |
| Rubber Washer | Rubber / specified elastomer | Flexible sealing and cushioning properties; suitable where an elastomeric interface is required | General construction, roofing, sheet metal and outdoor applications | Rubber type, hardness, OD, ID, thickness, temperature and environmental resistance |
| EPDM Washer | EPDM rubber | Good weathering and environmental resistance; commonly selected for exterior sealing applications | Metal roofing, wall cladding, outdoor construction, HVAC and building products | EPDM grade, hardness, OD, ID, thickness, temperature and weathering requirements |
| Bonded Washer | Metal washer + elastomer sealing element | Combines a metal washer with an elastomeric sealing ring; provides a controlled sealing interface | Roofing, cladding, construction, industrial equipment, pipe and enclosure applications | Metal washer material, elastomer material, OD, ID, thickness, hardness and sealing requirements |
A self drilling screw is a threaded fastener with an integrated drill point that can drill through the intended substrate and create the fastening connection during installation, when correctly matched to the material and thickness.
JLHY can evaluate OEM requirements for pan head, truss head, countersunk/CSK head, hex washer head and hex washer flange head self drilling screws, with drive options such as Phillips, Pozi and square, subject to the required specification.
Yes. OEM self drilling screws can be developed around customer requirements for dimensions, head style, drive, drill point, material, washer, coating, packaging and other specified characteristics.
Yes. Self drilling screws can be supplied with EPDM washers for applications where an elastomeric washer is required. The buyer should specify washer dimensions, material requirements and application conditions.
Depending on the product specification, options can include PVC washers, rubber washers, EPDM washers and bonded washers. The appropriate washer depends on the application, sealing requirement, environment and customer specification.
Potential coating and plating options include zinc, yellow zinc, black zinc, phosphate finishes, Ruspert-type coatings, Xylan and other customer-specified surface treatments. The exact coating system should be defined in the OEM specification.
Zinc plating and Ruspert-type coatings are different surface-treatment systems. The appropriate choice depends on the required corrosion resistance, appearance, application environment and specified performance. Buyers should compare the actual coating system and test requirements rather than relying only on appearance.
Xylan is a family of fluoropolymer-based coating systems used for specialized performance requirements. JLHY can evaluate Xylan-coated self drilling screw requirements when the buyer specifies the required coating system and performance.
A bonded washer self drilling screw combines the screw with a metal washer and an elastomeric sealing element. It is commonly considered for applications where the fastener needs to provide a controlled sealing interface.
The most useful information includes screw head, drive, diameter, length, drill point, thread, material, washer, coating, application, quantity and packaging. A drawing or physical sample is strongly recommended for non-standard products.
OEM buyers can request private-label packaging and product identification requirements. The final packaging configuration should be confirmed according to the customer's order requirements.
Different self drilling screw configurations can be covered by different standards. For example, ISO 15480:2019 covers hexagon washer-head drilling screws with tapping screw threads, while ISO's fastener classification lists related standards for pan head, countersunk and raised countersunk drilling screws. ASTM C1513-24 covers steel self-drilling and self-piercing tapping screws for specified cold-formed steel framing applications.
Request an OEM Self Drilling Screw Quotation
The best self drilling screw for an OEM application is not necessarily the cheapest screw or the most common screw. It is the screw whose head, drive, drill point, thread, material, washer and coating have been correctly matched to the customer's application and specification. For importers, distributors and brand owners, working directly with an experienced OEM manufacturer can simplify this process and create a more consistent supply chain.
JLHY provides OEM self drilling screw solutions covering multiple head styles, drive configurations, washer materials and surface treatments.
If you are developing a new self drilling screw product, replacing an existing supplier or sourcing private-label SDS screws from China, send JLHY your drawing, sample or purchasing specification for an OEM quotation.
