Hex Washer Head 1/4 X 4 Self-Drilling Tek Screw Sourcing | Hebei Wotu Fastener Manufacturing Co., Ltd.
Use this page to review 1/4 x 4 Hex Washer Head Self-Drilling Tek Screw options during new product line development. It is written for product development teams that need to compare related fasteners, confirm technical details, and prepare a more complete RFQ.
The focus here is quality review before sourcing. Check specification fit, sample expectations, inspection points, packaging requirements, and documentation needs so supplier discussions can move from general interest to workable quotation details.
Brand: Hengzuan Surface: blue and white zinc plated, color zinc plated can be customized on request Specifications: in stock 4.2/4.8/5.5/6.3mm mainstream wire diameter, length 20mm~165mm full range of specifications, nonstandard rod length, drill point size can be customized Packaging: 25kg export cartons, full pallets wrapped with film, supports neutral export packaging, customer private-label customization
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Brand: Hengzuan Surface: screw color zinc plated + hex head outdoor paint Specifications: ST5.5, ST6.3, rod length 25mm～120mm in stock, supports nonstandard customization, suitable for drilling steel sheets 2～5mm Packaging: 25kg cartons, whole wooden pallets
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Brand: Hengzuan Surface: screw color zinc plated, head color nylon protective cap, multiple colors available Specifications: Chinese national standard ST5.5, ST6.3 mainstream caliber, rod length 25mm~125mm full range of specifications in stock, supports nonstandard length customization, suitable for drilling steel sheet thickness 2~6mm Packaging: 25kg cartons, full pallets packed on wooden pallets, support neutral packaging, private-label customization
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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
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Brand: Hengzuan Surface: Dacromet anti-corrosion coating Specifications: in stock ST5.5/ST6.3 mainstream caliber, rod length 50mm~150mm, extended full range of specifications, supports nonstandard extra long customized, suitable for drilling steel sheet thickness 2~6mm Packaging: 25kg export cartons, full pallets wrapped with film, supports neutral export packaging, private-label customization
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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 MoreProduct Development Review Guide
The related product list helps you compare 1/4 x 4 Hex Washer Head Self-Drilling Tek Screw by actual product direction rather than keyword wording alone. Check whether each product supports new product line development, then use the table below to prepare a clearer RFQ.
| Criterion | What To Check | Why It Matters | Buyer Tip |
|---|---|---|---|
| Size fit | Confirm 1/4 x 4 dimensions | Prevents spec mismatch | Attach drawing in RFQ |
| Head style | Hex washer head geometry | Affects drive and seating | Request head tolerance data |
| Drilling point | Tek point type and length | Impacts pilot-free install | Match to substrate thickness |
| Surface finish | Coating and salt-spray data | Supports quality review | Ask for finish certificate |
| Inspection docs | COC, test report, sample record | Speeds approval workflow | Define docs before sampling |
A 1/4 x 4 Hex Washer Head Self-Drilling Tek Screw is typically evaluated by size, head style, drilling point, thread form, material, finish, and intended application. For sourcing, buyers should confirm whether the screw matches the base materials, installation method, and durability requirements of the project.
For an RFQ, provide target quantity, drawings or reference samples, required finish, packaging details, destination, and any inspection documents you need. This helps the supplier check feasibility, quote more accurately, and identify whether related products should also be compared.
Start with the product role in your new line. Confirm where the screw will be used, what it will fasten, expected installation conditions, and whether the 1/4 x 4 specification is fixed or still under review. This gives the supplier a clear basis for checking matching products.
Review quality inspection points before confirming samples. Common checkpoints may include dimensions, head shape, washer fit, drilling point consistency, thread quality, surface finish, and packaging condition. If your team has internal inspection standards, share them early in the RFQ process.
When preparing a quotation request, include order quantity ranges, finish requirements, sample needs, labeling or carton requirements, delivery destination, and target timeline. If the project is still in development, explain which details are confirmed and which are open for supplier recommendation.
Compare supplier replies by how clearly they address technical details, sample confirmation, documentation, and after-sales communication. A useful response should help your team understand product fit, related alternatives, inspection support, and the next steps for approval.
| Criteria | Importance | Description | Example Options |
|---|---|---|---|
| Size fit | High | Matches assembly thickness | 1/4 x 4 length |
| Point type | High | Affects drilling performance | Self-drilling Tek point |
| Head design | Medium | Supports torque transfer | Hex washer head |
| Surface finish | Medium | Relates to application environment | Zinc or specified coating |
| Inspection records | High | Supports quality review | Dimensional check report |
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Top product matches should be reviewed by fit, specification clarity, customization readiness, and how well they support quality review. Use these factors to shortlist practical options before contacting the supplier.
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Recent buyer-style reviews and inquiries can help your team compare supplier options, check product specifications, and identify questions to ask before confirming samples.
I used this tag page to separate thread length, washer head fit, and drilling point questions for 1/4 x 4 Hex Washer Head Self-Drilling Tek Screw sourcing.
I was preparing an RFQ, and the page helped me describe the 1/4 x 4 Hex Washer Head Self-Drilling Tek Screw requirement without mixing it with shorter tek screws.
I needed clearer notes for a metal fastening application, and this page kept my focus on the 1/4 x 4 hex washer head self-drilling tek screw format.
I referenced it while comparing supplier responses, especially to keep the 1/4 x 4 Hex Washer Head Self-Drilling Tek Screw dimensions and head type consistent.
Include diameter, length, drilling point type, material grade, finish, washer requirement, intended substrate, packaging preference, drawing or standard reference, and inspection documents needed. This helps align pricing discussions with product development and quality review.
The 1/4 x 4 size is typically considered where longer reach or thicker assemblies are involved. Shorter screws may suit lighter layers, while this option requires closer review of drilling capacity, thread engagement, and installation conditions.
Sample review should confirm head shape, washer fit, overall length, thread consistency, drilling point geometry, coating appearance, and compatibility with the target material. Installation trials can help verify drilling behavior before finalizing specifications.
Key details include shank diameter, thread pitch, point style, hex washer head dimensions, material, surface treatment, hardness range, and recommended application material. These factors influence drilling performance, clamping force, and product line suitability.
Common inspection points include dimensional checks, head drive fit, thread profile, point sharpness, coating coverage, hardness testing, and visual surface review. Buyers may also request inspection records that match internal engineering and approval workflows.
Useful support includes clarification of inspection results, assistance with specification adjustments, review of application feedback, and coordination on future RFQ updates. This helps product development teams manage technical changes without losing documentation continuity.
Send your RFQ with application details, target quantity, required finish, packaging needs, destination, sample expectations, and any inspection documents required by your team.
