OEM Sourcing Guide for 140-Count Self-Tapping Hex Washer Head Drill Point Screws | Hebei Wotu Fastener Manufacturing Co., Ltd.

OEM Sourcing Guide for 140-Count Self-Tapping Hex Washer Head Drill Point Screws

Use this page to evaluate 140-Count Self-Tapping Hex Washer Head Drill Point Screws from the perspective of OEM project planning. It brings together related products, practical selection checks, and buyer questions so your inquiry can be more specific from the beginning.

For a procurement manager, the most useful starting point is customization scope and sample approval. Review the product matches, comparison notes, FAQs, and recent buyer-style feedback before sending final requirements.

Hot Selling Product

Countersunk Head Blue-White Zinc Plated Self-Drilling Screw (Chinese National Standard: Phillips Countersunk Head Self-Drilling And Self-Tapping Screw GB/T15856.2-2002)

Countersunk Head Blue-White Zinc Plated Self-Drilling Screw (Chinese National Standard: Phillips Countersunk Head Self-Drilling And Self-Tapping Screw GB/T15856.2-2002)

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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Hex Head Self-Drilling Screw With Bonded Washer

Hex Head Self-Drilling Screw With Bonded Washer

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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Blue-White Zinc Plated Winged Countersunk Head Self-Drilling Screw

Blue-White Zinc Plated Winged Countersunk Head Self-Drilling Screw

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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Dacromet Hex Head Self-Drilling Screw

Dacromet Hex Head Self-Drilling Screw

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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Hex Head No. 5 Point Self-Drilling Screw

Hex Head No. 5 Point Self-Drilling Screw

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

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How To Compare 140-count self-tapping hex-washer-head drill point screws Options

Product guide for application matching

The related product list helps you compare 140-Count Self-Tapping Hex Washer Head Drill Point Screws by actual product direction rather than keyword wording alone. Check whether each product supports OEM project planning, then use the table below to prepare a clearer RFQ.

Criterion What To Check Why It Matters Buyer Tip
Application fit Match drill point, gauge, and length to OEM substrate stack. Prevents misfit during assembly planning. Share drawings and material thickness.
Head and drive Confirm hex washer head size and driver access. Supports stable installation in tight designs. Request head dimensions in spec sheet.
Customization scope Ask about size, coating, washer, and packaging options. Aligns screws with project and export needs. List must-have and optional changes.
Sample approval Review samples before locking bulk order details. Reduces specification and finish disputes. Test on actual assembly materials.
RFQ readiness Include quantity, standards, finish, pack count, and lead-time target. Improves supplier comparison accuracy. Use one RFQ template for all suppliers.

How To Choose 140-count self-tapping hex-washer-head drill point screws Supplier

140-Count Self-Tapping Hex Washer Head Drill Point Screws are best evaluated by matching the screw design to the substrate, assembly method, required finish, packaging format, and project approval process.

For OEM planning, send the supplier the target application, drawings or reference samples if available, quantity range, destination, and any packaging or labeling requirements. This makes it easier to confirm sample options and prepare a practical RFQ.

Start with the application. Confirm the materials being fastened, the expected installation method, head style preference, drill point needs, and any environmental or finish requirements. Clear usage details help prevent mismatched recommendations.

Next, define the customization scope. Procurement managers should list required dimensions, material grade expectations, surface treatment, packaging count, carton requirements, label details, and whether OEM markings or documentation are needed.

Before requesting pricing, prepare the quantity range, delivery destination, preferred order schedule, and sample approval steps. If the project is still in development, explain which specifications are fixed and which can be adjusted.

When comparing suppliers, look beyond unit price. Review how clearly each supplier responds to technical questions, whether they can discuss samples, and how they handle packaging, export order preparation, and lead-time communication.

Criteria Importance Description Example Options
Application fit High Matches screw design to substrate and joint needs. Sheet metal OEM assembly
Customization scope High Defines size, finish, washer, and point options. Zinc finish, EPDM washer
Sample approval High Confirms performance before bulk order. Test drilling and thread hold
RFQ clarity Medium Improves supplier quotation accuracy. Drawing plus packing notes
Export packaging Medium Supports handling, labeling, and order control. 140-count retail box

Top Product Matches

Recommended Products

Top product matches should be reviewed by fit, specification clarity, customization readiness, and how well they support application matching. Use these factors to shortlist practical options before contacting the supplier.

Top Selling Product Selection Factors

Application match Best when specs match substrate.
Customization fit Coating and pack details matter.
Sample priority Approve before bulk PO.
RFQ clarity Complete data speeds quotes.
Export packing needs Confirm labels and cartons.

Blog Articles / Reviews

The Concept of Hexagonal Self-Drilling Screws and High-Pressure Standard Parts

The Concept of Hexagonal Self-Drilling Screws and High-Pressure Standard Parts

Hexagonal self-drilling screws, manufactured by Hebei Wotu Fastener Manufacturing Co., Ltd., operate under a modern enterprise system and strictly manage according to the ISO9001:2015 quality system. The company uses “Wotu” as its registered trademark. The term “standard parts” in China is a shorthand for “standard fasteners,” a narrow definition. High- and medium-pressure standard parts refer […]

A manufacturer of hexagonal self-drilling screws discusses their performance standards.

A manufacturer of hexagonal self-drilling screws discusses their performance standards.

Hebei Wotu Fastener Manufacturing Co., Ltd., founded in the 1990s, is located in Yongnian District, Handan City, Hebei Province, known as the “Hometown of Fasteners.” 1. Core Hardness: Standard: HRC32-40. Our products are measured at HRC31.7-39.0. 2. Surface Hardness: Standard: HV600-700. Our products are measured at approximately HV620. 3. Hardened Layer: 4#-6#: 0.05-0.18mm; 8#-12#: 0.10-0.23mm; […]

Six key points to note when using and maintaining self-drilling screws

Six key points to note when using and maintaining self-drilling screws

1. Rinsing the self-drilling screw is crucial and requires meticulous attention, as residue may remain on its surface. This rinsing step should be performed after cleaning with a silicate cleaning agent. 2. Proper stacking is essential during tempering of the self-drilling screw; otherwise, slight oxidation may occur in the quenching oil. 3. The appearance of […]

Rust Prevention Tips for Self-Drilling Screws

Rust Prevention Tips for Self-Drilling Screws

As we all know, the simplest way to prevent self-drilling screws from rusting is to properly isolate the screws from moisture-containing and humid environments. This can be achieved through selective application of protective coatings and sealants, or by purchasing specially formulated rust-resistant or rust-proof screws. This is why many businesses and households have rust prevention […]

Assembly of Self-Drilling Screws

Assembly of Self-Drilling Screws

As the requirements for fixing objects continue to improve and evolve, the demands on self-drilling screws have also increased. Therefore, self-drilling screws have undergone corresponding improvements, including the emergence of high-strength self-drilling screws. Today, we’ll examine the optimizations in strength aspects of self-drilling screws. High-strength self-drilling screws offer advantages such as low locking torque, high […]

Review buyer-style feedback with the same questions used during sourcing: are the specifications clear, is the supplier response useful, and does the product direction fit the intended application?

Morgan H. Ellis July 20, 2026
I used this tag page to clarify whether a 140-count pack of self-tapping hex-washer-head drill point screws fit our maintenance stocking plan.
Priya N. Shah July 18, 2026
I was preparing an RFQ and the page helped me specify hex washer head, drill point, and 140-count packaging without mixing terms.
Derek M. Collins July 9, 2026
I needed a concise reference for self-tapping drill point screws, and this page kept the 140-count hex-washer-head option easy to compare.
Elena V. Brooks June 30, 2026
I liked having the exact 140-count self-tapping hex-washer-head drill point screw wording available when aligning our installation notes with sourcing questions.

Frequently Asked Questions

How can a procurement manager assess application fit for 140-Count Self-Tapping Hex Washer Head Drill Point Screws in OEM planning?

Match the screw diameter, length, drill point style, head type, and washer design with the base material, sheet thickness, joint load, and assembly method. Share drawings or samples so the supplier can confirm suitability before RFQ finalization.

What custom options should be discussed for 140-Count Self-Tapping Hex Washer Head Drill Point Screws?

Discuss dimensions, thread type, drill point configuration, washer size, surface finish, material grade, head marking, and packaging format. Clear customization notes help suppliers evaluate production feasibility and prepare samples aligned with the OEM application.

What specifications should be included when requesting samples of 140-Count Self-Tapping Hex Washer Head Drill Point Screws?

Include screw size, material, finish, drill point type, washer requirement, target substrate, application environment, drawing tolerances, and any packaging preference. Sample approval should verify fit, drilling performance, thread engagement, and assembly consistency.

How should buyers communicate bulk order requirements for 140-Count Self-Tapping Hex Washer Head Drill Point Screws?

Provide estimated annual usage, order quantities, technical drawings, packing requirements, labeling details, inspection points, and destination information. Structured communication helps the supplier review manufacturing scope, export documentation needs, and order preparation requirements.

What lead-time questions are appropriate for 140-Count Self-Tapping Hex Washer Head Drill Point Screws during RFQ review?

Ask how lead time varies by customization, sample approval, finish selection, packaging method, and order volume. Avoid assuming fixed timelines until the supplier confirms production routing, material availability, and inspection requirements for the requested specification.

What packaging details matter for export orders of 140-Count Self-Tapping Hex Washer Head Drill Point Screws?

Clarify inner pack count, carton layout, pallet preference, label content, barcode needs, moisture protection, and buyer-specific markings. Packaging requirements should support warehouse handling, OEM line identification, and export documentation consistency.

Leave Your Message

Send your application details, target specifications, quantity range, destination, packaging needs, and sample approval requirements so Hebei Wotu Fastener Manufacturing Co., Ltd. can review your inquiry more efficiently.