1 1 2 Self Tapping Screws Sourcing | Hebei Wotu Fastener Manufacturing Co., Ltd.
Review 1-1/2 Self-Tapping Screws with a focus on reducing project risk before you request pricing. This page helps project engineers organize application details, custom requirements, and supplier questions into a clearer sourcing brief.
Use the product listings, guide notes, and inquiry prompts to check fit, branding needs, packaging expectations, and order planning. A more complete specification helps keep custom projects consistent from sample review to bulk delivery.
Brand: Hengzuan Surface: blue and white zinc plated Specifications: in stock ST4.2/ST4.8full range of specifications, length 13~50mm in stock, support nonstandard length customization Packaging: 25kg cartons, solid wood packaging, support neutral packaging, private-label customization
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Brand: Hengzuan Surface: blue and white zinc plated, optional color zinc plated, black oxide treatment Specifications: Follow GB/T846-1985 Chinese national standard, in stock ST4.2/ST4.8/ST5.5 full range of specifications Packaging: 25kg export cartons, full pallets wrapped with film, supports neutral export packaging, private-label customization
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Brand: Hengzuan Surface: blue and white zinc plated, can be customized color zinc plated, black oxide plated Specifications: Comply with GB/T15856.2-2002 Chinese national standard, in stock ST4.2/ST4.8/ST5.5 full range of specifications, length 13mm~75mm optional, supports customized nonstandard rod lengths; drilling adaptation plate thickness 0.7~6mm Packaging: 25kg export cartons, full pallets wrapped with film, supports neutral export packaging, customer private-label customization
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Brand: Wotu Surface: blue and white zinc plated Specifications: Chinese national standard 6#/8#/10#/12#/16#/20#, rod length 35mm~250mm full range of specifications in stock, supports nonstandard length customization Packaging: 25kg cartons, full pallets packed on wooden pallets, support neutral packaging, private-label customization
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Brand: Hengzuan Surface: blue and white zinc plated, optional color zinc plated, black oxide treatment Specifications: in stock ST3.5/ST4.2/ST4.8 mainstream specifications, rod length 16~50mm full size range, supports nonstandard length customization, suitable for drilling steel sheets 2~5mm Packaging: 25kg cartons, full pallets packed on wooden pallets, support neutral packaging, private-label customization
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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
Read MoreProduct Guide for Custom Specification Review
The related product list helps you compare 1-1/2 Self-Tapping Screws by actual product direction rather than keyword wording alone. Check whether each product supports custom specification confirmation, then use the table below to prepare a clearer RFQ.
| Criterion | What To Check | Why It Matters | Buyer Tip |
|---|---|---|---|
| Material grade | Confirm steel or stainless spec | Reduces mismatch risk | Attach project standard |
| Thread type | Match substrate thickness | Affects tapping fit | Share panel drawings |
| Head style | Verify tool and finish needs | Keeps assembly consistent | List driver type |
| Brand marking | Define logo or plain head | Supports project traceability | Approve sample photos |
| Packaging | Set carton, label, lot data | Avoids site sorting errors | Send label template |
1-1/2 Self-Tapping Screws are typically sourced by matching the screw size, material, head style, drive type, finish, and thread design to the intended application. For B2B purchasing, the key is to confirm the working environment, fastening material, quantity range, and any required customization before quoting.
If your project requires brand consistency, include drawings, photos, packaging references, labeling needs, and inspection points in the first inquiry. This helps the supplier confirm what can be produced, what needs sampling, and what information is still missing.
Start with the application fit. Confirm the base material, installation method, load expectations, exposure conditions, and whether the screw must meet an existing project standard. These details help narrow the choice of material, finish, thread form, and head or drive configuration.
For custom specification confirmation, prepare a checklist before contacting the supplier. Include dimensions, tolerances if available, surface treatment, color or coating needs, logo or brand packaging requirements, carton marks, barcode needs, and any reference samples or drawings.
Bulk order preparation should also cover quantity ranges, delivery destination, target shipment schedule, and approval steps. Ask whether samples are needed before mass production and what information the supplier requires to confirm lead time, packing method, and quotation accuracy.
When comparing supplier replies, look for clear follow-up questions rather than only a general price list. A good response should help you identify specification gaps, confirm customization options, and keep the project consistent across samples, production, and repeat orders.
| Criteria | Importance | Description | Example Options |
|---|---|---|---|
| Substrate match | High | Confirms thread and point suitability. | Steel sheet or aluminum panel |
| Head and drive | High | Affects tooling and assembly access. | Pan head, Phillips drive |
| Surface finish | Medium | Supports appearance and environment needs. | Zinc-plated finish |
| Brand packaging | Medium | Keeps project identity consistent. | Custom label or carton text |
| Specification record | High | Reduces mismatch in repeat orders. | Drawing plus approved sample |
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Top product matches should be reviewed by fit, specification clarity, customization readiness, and how well they support buyer risk reduction. Use these factors to shortlist practical options before contacting the supplier.
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Recent buyer-style feedback can help you prepare better questions before contacting the supplier. Use these notes to think through sample planning, application confirmation, related product shortlisting, and custom project details.
I used the tag page to frame our questions around 1-1/2 Self-Tapping Screws before discussing panel thickness, pilot needs, and head style.
The 1-1/2 Self-Tapping Screws content helped me separate material, drive type, and coating questions so our RFQ read less like a generic fastener request.
I checked this page while comparing 1-1/2 Self-Tapping Screws for a maintenance project and noted which details our engineering team still needed to confirm.
This gave me a practical way to ask about 1-1/2 Self-Tapping Screws without mixing up thread behavior, fastening surface, and installation tooling.
Confirm substrate material, sheet thickness, pilot hole approach, load direction, vibration exposure, and head clearance. Sharing drawings or photos helps align the 1-1/2 Self-Tapping Screws with installation conditions before custom specification review.
Specify diameter, thread type, head style, drive type, point style, material, surface finish, and any branding or marking needs. Clear option details reduce mismatch risk across drawings, samples, and bulk order documents.
Send the target size, application material, drawing reference, required finish, assembly method, and expected packaging format. If replacing an existing screw, include photos, measurements, and any known performance concerns for comparison.
Keep one specification sheet for logo, carton text, label format, finish description, and part number rules. Confirm these details before order documents are finalized to maintain consistent presentation across repeated project batches.
Prepare a confirmed bill of materials, approved sample reference, packaging instructions, inspection points, and destination requirements. Aligning these details early helps engineering, purchasing, and supplier teams review the same specification basis.
Ask which specification items may affect production scheduling, such as nonstandard finish, special head marking, unique packaging, or sample revisions. Avoid assuming timing until the supplier reviews drawings, order quantity, and customization requirements.
Send your inquiry with application details, drawings or photos, quantity range, destination, packaging needs, and any brand customization requirements. Clear information helps the supplier respond with more accurate specification and order guidance.
