Screw Range for Project Applications | Hebei Wotu Fastener Manufacturing Co., Ltd.
A screw range for project buying should start with the joint: material, hole condition, head clearance, finish exposure, and installation method. A furniture line, a metal panel roof, and a steel-to-steel bracket do not need the same screw, even if the nominal diameter looks similar.
For Hebei Wotu Fastener Manufacturing Co., Ltd., the useful inquiry is not simply “what screws do you have?” but which screw type, head style, thread form, point type, coating, and packing format will keep assembly consistent across your application.
Brand: Hengzuan Surface: high temperature black phosphated anti-rust treatment, blue zinc, color zinc plated coating can be replaced as needed Specifications: in stock ST3.5/ST4.2/ST4.8 common specifications, rod length 16mm~50mm, complete, supports nonstandard size customization, suitable for drilling steel sheets 2~5mm Packaging: 25kg cartons, whole wooden pallets, support neutral packaging, private-label customization
Read More
Brand: Hengzuan Surface: color zinc plated Specifications: in stock ST5.5/ST6.3 regular diameter, rod length 19mm~75mm in stock, supports nonstandard customized, suitable for drilling steel sheet thickness 2~5mm Packaging: carton packaging, full pallets wooden pallet packaging, support neutral packaging, private-label customization
Read More
Brand: Hengzuan Surface: color zinc plated Specifications: ST4.2/ST4.6/ST4.8/ST5.5/ST6.3, length 80mm～165mm in stock Packaging: 25kg cartons, packed in whole pallets, supports neutral private-label
Read More
Brand: Wotu Surface: blue and white zinc plated, customized color zinc plated, Dacromet anti-corrosion coating available Specifications: ST5.5, ST6.3 mainstream specifications, rod length 20mm~125mm, full size range in stock, support nonstandard customization, drilling to adapt to steel sheet 2-6mm Packaging: 25kg cartons, whole wooden pallets
Read More
Brand: Hengzuan Surface: Color zinc plated, optional blue-white zinc plated, black oxide treatment Specifications: Chinese national standard ST4.2/ST4.8/ST5.5 specifications, rod length 13~50mm in stock, supports nonstandard length customization Packaging: 25kg export cartons, full wooden pallets wrapped with film, supports neutral packaging, private-label customization
Read More
Brand: Hengzuan Surface: color zinc plated, can be customizedblue-white zinc plated Specifications: in stock 4.8/5.5 common wire diameter, rod length 16~125mm full range of specifications, supports nonstandard customized Packaging: 25kg cartons, whole wooden pallets, support neutral packaging, private-label customization
Read MoreScrew selection criteria
Relevant screw selection usually comes down to five checks: material combination, hole condition, head and drive access, thread and point geometry, and surface finish. Confirming these points early helps separate furniture screws, self-tapping screws, self-drilling screws, and roofing screws that may look similar in a short description but behave differently in assembly.
| Criterion | What To Check | Why It Matters | Buyer Tip |
|---|---|---|---|
| Screw type for the joint | Compare self-drilling, self-tapping, fiberboard, roofing and other screw forms by the materials being joined. | A screw that drills into thin steel may not give the best hold in timber, board or a pre-drilled assembly. | Ask: which screw types in your range are intended for metal-to-metal, metal-to-wood, board assembly and roofing work? |
| Head style and drive recess | Confirm the head shape, such as countersunk or hex head, and the drive type needed for installation tools. | Head choice affects flush finish, clamping area, tool access and the risk of cam-out during fastening. | Send a drawing or sample photo and ask which head and drive options match the assembly method. |
| Thread form and engagement | Review thread pitch, thread length and the amount of material the screw must engage after installation. | Thread engagement controls holding strength; too little engagement can loosen, while the wrong thread can split board or strip metal. | Ask what thread style is normally used for your base material and minimum engagement requirement. |
| Point style and hole preparation | Confirm whether the screw needs a drill point, tapping point or a pilot hole before installation. | Point style changes installation speed, required equipment and the likelihood of cracked panels or stripped holes. | Ask whether the selected screw is meant for direct driving or for use with a defined pilot hole. |
| Surface coating and service environment | State the exposure conditions, such as indoor furniture, exterior panels or metal roofing, and ask what coating options are available. | Coating choice affects corrosion resistance, appearance and compatibility with surrounding materials. | Ask for the available finishes for the screw size and type, and whether they suit the planned environment. |
The main distinction is between screws that cut or form their own mating thread and screws that also drill their own hole. Self-tapping screws usually need a prepared hole or a softer receiving material; self-drilling screws add a drill point for metal sheets or sections where eliminating a separate drilling step matters.
That difference affects installation speed, pull-out performance, tool wear, and the risk of stripped threads. For example, a fiberboard screw for furniture needs thread bite and a head that seats cleanly, while a roofing screw must match the panel, substrate, washer requirement, and corrosion exposure.
Define the assembly before selecting the screw. State the two materials being joined, their thickness or density where relevant, and whether the hole is pre-drilled, punched, or drilled by the screw. This prevents a common mistake: choosing only by length and diameter while ignoring point design and thread engagement.
Choose the head style around access and finished appearance. Countersunk heads sit flush in wood-based panels and furniture parts, while hex heads suit driven installation on metal panels and structural sheet applications. Cross recess, hex washer head, and other drive forms also change installation torque control and tool compatibility.
Match the surface treatment to the working environment. Indoor furniture hardware may not need the same coating approach as roofing or exterior metal-to-metal fastening. If Dacromet, zinc plating, painted heads, or another finish is required, confirm the finish name, color, salt-spray or project test requirement if applicable, and any mating-material restrictions.
For the next step, send a drawing, sample, or current screw description with the application details. Include screw diameter and length, head type, drive type, thread style, point type, finish, packing preference, and expected use case. If you are replacing an existing fastener, add photos of the screw, the joint, and the installation issue you want to solve.
| Criteria | Importance | Description | Example Options |
|---|---|---|---|
| Material combination and hole condition | High importance because the screw must form, cut, or engage threads appropriately in the receiving material. | Identify whether the joint is wood-to-wood, metal-to-metal, metal-to-wood, or a pre-drilled assembly. A screw designed for a prepared hole may not suit an application that requires the point to create the hole. | A furniture panel joint and a metal sheet joint may require different thread and point designs even if their nominal screw sizes are similar. |
| Thread form and point type | High importance because these features affect starting, thread engagement, installation effort, and resistance to stripping. | Compare self-tapping and self-drilling designs, then confirm whether the thread suits the substrate and available engagement length. Do not select only by overall length. | A self-drilling point may suit metal-to-metal fixing, while a self-tapping screw may suit a pre-drilled hole. |
| Head style and drive | Important where the finished surface, tool access, and installation consistency matter. | Countersunk heads are intended for a flush finish in suitable materials; hex or hex washer heads can provide practical access on sheet or panel assemblies. Cross recesses and other drive forms require compatible tools and controlled seating. | A countersunk head may suit a flat furniture face, while a hex head may be easier to drive on an exposed metal panel. |
| Surface finish and working environment | Important because exposure, appearance, and contact with other materials can affect the suitable finish. | State whether the screw is for an indoor, sheltered, or more exposed application and identify any required coating or appearance. Confirm the finish designation and any project-specific test or compatibility requirement rather than assuming similar-looking coatings are equivalent. | An indoor furniture assembly may have different finish priorities from an exterior panel fastening application. |
| Dimensions, engagement, and supply format | Important for assembly fit, repeatability, and purchasing accuracy. | Confirm diameter, length, head dimensions, usable thread engagement, drawing or dimensional tolerances where needed, and the preferred packing format. If replacing an existing screw, compare the complete fastener and joint rather than relying on a single stated size. | An enquiry can distinguish a replacement screw by specifying the joint materials, required length, head and drive, finish, and whether bulk or smaller-unit packing is needed. |
Related Options
For a real project, the priority is fit to the joint rather than a generic “top” screw. A countersunk fiberboard screw may be the right choice for flat-pack furniture, while a hex head self-drilling screw with the specified coating may suit metal sheet fixing. Share the substrate and installation method so the screw range can be narrowed to practical options.
Fiberboard screws are selected based on more than screw size alone. For furniture assembly and board-based applications, buyers need to match the screw structure with the characteristics of fiberboard, MDF, and similar engineered wood materials. A suitable specification should consider thread design, head style, screw length, diameter, installation method, and application requirements. For buyers sourcing […]
When sourcing dacromet hex head self drilling screw, a complete RFQ should define the application, screw configuration, coating requirement, dimensions, and supplier confirmation requirements. Buyers often receive different quotations because suppliers may interpret coating, size, drilling capability, or packaging scope differently. Before preparing a project inquiry, buyers can review the available fastener product categories to […]
#4 self tapping screws should not be purchased from the “#4” designation alone. For a usable B2B specification, the buyer still needs the actual screw diameter, thread form or pitch, overall length, substrate, pilot-hole condition, head and drive style, material, surface finish and quantity. This matters because suppliers may use different naming systems. Wotu Fastener’s […]
A request for “1 1/2 self tapping screws” is incomplete until the buyer confirms what the 1 1/2 dimension refers to and how the screw will engage the base material. If 1 1/2 inch is the required overall length, that is only one part of the specification. Diameter, thread, head, drive, substrate, pilot-hole condition and […]
The correct self-tapping roofing screw depends on the complete panel-and-substrate stack-up. Steel supports typically require a point and thread matched to the support thickness and any pilot-hole requirement; timber supports require a wood-appropriate thread and sufficient embedment. In both cases, buyers must define diameter, length, head, sealing washer, material or coating, environment, pull-out requirements, and […]
Direct answer: Choose a self-drilling screw when the fastener must create a hole through a verified metal stack before its threads engage. Choose a self-tapping screw when the assembly already has a correctly sized pilot hole or when the selected thread is intended to form or cut into the specified substrate. The decision must also […]
A countersunk fiberboard screw is often considered when the head should sit flush and the thread needs to grip particleboard, MDF, or similar panels. Confirm the panel density, required joint strength, pilot-hole approach, drive recess, and screw length before treating it as a direct replacement for a general wood screw.
A self-drilling screw is useful when its drill point can create the hole in the metal sections or sheets being joined, reducing the need for a separate drilling operation. A self-tapping screw can be the better choice for a prepared hole or an assembly where the hole size, thread engagement, or access is already controlled.
Not necessarily. Head clearance, drive type, thread pitch, point design, material hardness, coating, and the amount of thread engaged can change installation and holding performance even when the basic dimensions match.
Check the panel material, supporting substrate, panel thickness, point type, head and washer arrangement, drive access, and the exposure of the finished joint. The coating should also be considered alongside the surrounding materials and the project’s stated corrosion or appearance requirements.
Provide the materials being joined, hole condition, diameter and length, head and drive style, thread and point preference, finish, application, and expected quantity or packing format. A drawing, sample, or clear photos of an existing fastener and joint can resolve uncertainty faster than a size description alone.
Send the materials being fastened, required screw size or drawing, head and drive preference, finish requirement, and expected application. If the screw must drill its own hole or work with a pre-drilled hole, include that detail too.
