Direct Product Answer

One-Step Fastening for Metal-Framed Ceiling Systems

Suspended ceiling self-drilling screws drill, form threads and fasten in one operation. Their drill point penetrates compatible light-gauge metal, while the threaded body secures gypsum board, composite ceiling panels or related components to the supporting frame.

Common ST4.2 and ST4.8 models are available in carbon steel, 410 stainless steel and 304 stainless steel. Head and finish options can be matched to the installation tool, surface requirement and service environment.

No separate pilot hole for compatible light steel keel
Phillips countersunk and hex washer head options
Zinc-plated, blue-coated and stainless finishes
OEM dimensions, labels and packaging can be reviewed

Request Screw Selection & Quote

Suspended ceiling self-drilling screws for light steel keel installation

Functional Features

Designed Around Installation Efficiency

Integrated Drill Point

The drill tail penetrates compatible light steel keel and thin sheet without a separate drilling step.

Metal Thread Engagement

Sharp threads engage the supporting metal and provide clamping force for the attached ceiling component.

Two Head Configurations

Specify a Phillips countersunk head or hex washer head according to seating and driving requirements.

Material Selection

Carbon steel, 410 stainless steel and 304 stainless steel options support different purchasing specifications.

Finish Options

Zinc plating, blue coating and polished stainless finishes are listed for this product range.

OEM Supply

Drawings or samples can be reviewed for non-standard dimensions, finishes and packaging.

Technical Specification

Available Product Configurations

Final dimensions and drill capacity should be confirmed against the buyer's ceiling assembly rather than selected by nominal diameter alone.

Product type	Self-drilling screw for suspended ceiling and light steel framing work
Common models	ST4.2 and ST4.8
Material options	Hardened carbon steel, 410 stainless steel or 304 stainless steel
Surface options	Zinc plated, blue coated or polished stainless steel
Head styles	Phillips countersunk head or hex washer head
Compatible materials	Light steel keel, gypsum board over metal framing, thin iron sheet and composite ceiling panel
Main uses	Ceiling fixing, keel connection and drywall mounting
Length and drill capacity	Confirm according to total grip thickness and supporting metal thickness
Standard packing	Plastic inner bags and export cartons
Custom options	Dimensions, finish, mixed-size packing, private labels and OEM packaging

Provide the supporting metal thickness when requesting a quote. The drill point must be capable of penetrating the selected metal member before the threads can form a secure connection.

Hardware fastener production equipment at Xinhengjie factory

Production capability for standard and non-standard fastener orders

Specification Logic

Five Details Determine the Correct Screw

Substrate Identify the supporting metal type and thickness. Gypsum board alone is not a structural overhead substrate.

Grip length Add the panel, bracket, washer and metal thicknesses, then allow sufficient thread engagement.

Head style Use a countersunk head for recessed seating or a hex washer head for positive socket engagement.

Material Compare coated carbon steel with stainless steel according to indoor humidity and corrosion requirements.

Driver setup Confirm the bit, installation speed and torque setting to protect the head, threads and board surface.

Application Fit

Where Suspended Ceiling Self-Drilling Screws Are Used

Light Steel Keel Ceilings

Fastening compatible ceiling panels and components to light-gauge metal framing.

Drywall Construction

Securing gypsum board to metal framing with the correct length and head-seating depth.

Composite Ceiling Panels

Connecting compatible panels after confirming panel thickness and required bearing area.

Commercial Interiors

Repetitive ceiling installation in offices, shopping areas, hotels and residential projects.

Factory and Warehouse Areas

Light ceiling-framing and overhead mounting where the complete assembly has been verified.

OEM Fastener Kits

Specified screw configurations packed for distributors, contractors and ceiling-system suppliers.

HVAC ducts, pipes, cable trays, luminaires and other suspended loads may require dedicated anchors or engineered supports. Confirm the permitted load and complete fixing assembly before installation.

Controlled Installation

Protect the Screw and Ceiling Surface

Confirm the assemblyCheck the board, supporting metal, screw length and drill-point capacity.
Mark the fixing positionHold the panel closely against the supporting metal member.
Fit the correct driverUse a matching Phillips bit or hex socket with controlled driving.
Keep the screw perpendicularDrive at a moderate speed so the drill point cuts cleanly.
Stop at the correct depthSeat the head without stripping the metal or crushing the board face.
Inspect the fixingCheck seating, firmness and screw spacing before continuing.

Drill point and threaded body of suspended ceiling self-drilling screws

Manufacturing and Order Control

Confirm the Specification Before Bulk Production

Fastener manufacturing and inspection area

Fastener manufacturing for standard and customized specifications

Hardware fastener production equipment in Xinhengjie facility

Production equipment used for hardware and fastener manufacturing

Dimensions

Confirm diameter, overall length, head geometry, point geometry and the complete material stack.

Material and Finish

State the steel type and surface treatment on the purchase specification.

Driving Fit

Match the Phillips recess or hex size to the intended installation tool.

Inspection Points

Define required dimensions, thread condition, appearance and other acceptance criteria.

OEM Parts

Send a drawing or physical sample for non-standard screw manufacturing assessment.

Export Packaging

Confirm pieces per bag, bags per carton, labels, mixed sizes and shipping marks.

Quotation Information

What Buyers Should Send

Required diameter, length and order quantity
Supporting metal type and thickness
Gypsum board or ceiling-panel thickness
Preferred countersunk or hex washer head
Carbon steel or stainless-steel requirement
Required plating, coating or polished finish
Installation environment and intended application
Drawing or sample for non-standard dimensions
Bag count, carton marking and private-label needs
Destination country and requested delivery schedule

Get a Recommendation & Quote

Xinhengjie hardware fastener manufacturing workshop

Drawings and samples can be reviewed for non-standard fastener production

Related Fasteners

Choose According to the Supporting Structure

Buyer Questions

Suspended Ceiling Self-Drilling Screw FAQ

Do suspended ceiling self-drilling screws require a pilot hole?

A separate pilot hole is generally unnecessary when the drill point is correctly matched to the type and thickness of the supporting metal.

Which common screw models are available?

The published common models are ST4.2 and ST4.8. Length, head style, material and finish must also be specified.

Can these screws be installed in drywall?

They can fasten gypsum board to compatible metal framing. Drywall alone should not be treated as a structural substrate for suspended loads.

What material options can buyers specify?

Published options include hardened carbon steel, 410 stainless steel and 304 stainless steel.

Should I choose a countersunk head or a hex washer head?

A countersunk head suits recessed seating. A hex washer head provides positive socket engagement and a broader bearing surface.

Can Xinhengjie manufacture custom ceiling screws?

Custom fasteners can be reviewed from buyer drawings or samples. Send the dimensions, material, finish, quantity and packaging requirements.

What packaging is available for distributor orders?

Standard packing uses plastic inner bags and export cartons. Mixed-size packing and private-label packaging can be discussed.

Specification and Quotation

Send Your Ceiling Assembly Details

Include the screw diameter and length, supporting metal thickness, board thickness, head style, material, finish, quantity, packaging requirements and destination country. Attach a drawing or sample for non-standard specifications.