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High Hardness Gypsum Screws With Black Phosphate for Metal Studs, Free Samples, 13mm-100mm
Product Spotlights
High-hardness (≥560 HV) self-tapping gypsum screws with black phosphate coating, ideal for metal studs. Available in 13–100mm lengths, with free samples. Exceptional anti-corrosion, reduced driving torque, and consistent quality backed by Hefei SENOTECH's export expertise to global markets.
US$ 0.01 - 0.1
MOQ: 1000 Pieces
Key Specifications
Get Latest Price
Material:
Other, Carbon steel (case hardened)
Head Style:
Other, Bugle head / flat head (customizable)
Surface Treatment:
Black phosphate
Payment & Shipping
Payment Methods:
Port of Shipment:
Ningbo
Delivery Detail:
30 days
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Material
Other, Carbon steel (case hardened)
Head Style
Other, Bugle head / flat head (customizable)
Surface Treatment
Black phosphate
Hardness
High hardness (≥ 560 HV)
Length Range
13mm - 100mm
Thread Type
Self-tapping with sharp point
Application
Gypsum board to metal studs
Packaging
Bulk cartons, free samples available
Hefei SENOTECH New Materials Co., Ltd offers premium High Hardness Gypsum Screws with Black Phosphate designed specifically for fastening gypsum boards to metal studs. Since 2020, we have served global markets including North America, South America, Europe, and Southeast Asia. Our screws combine superior durability with cost efficiency — and we proudly provide free samples so you can test the quality firsthand. Whether your project spans 13mm to 100mm thickness, our screws deliver reliable, long-lasting connections that reduce installation time and rework.
These screws are engineered for high-speed power driving without stripping or snapping. The black phosphate coating provides excellent corrosion resistance and reduces friction during insertion. Below is a detailed breakdown of features, specifications, and benefits.
Key Features & Technical Specifications
- Exceptional Hardness: Case-hardened to ≥560 HV for strong penetration into steel studs up to 20 gauge.
- Black Phosphate Finish: Protects against rust and offers a consistent, matte appearance; reduces drive torque for faster installation.
- Sharp Self-Starting Point: No pre-drilling needed – the needle-sharp tip quickly pierces both gypsum and metal.
- Optimized Thread Design: Deep, sharp threads grip tightly into metal while minimizing gypsum cracking.
- Bugle Head: Countersinks flush with gypsum surface for a smooth finish; compatible with standard drywall bits.
- Wide Length Range: Available from 13mm (for single-layer board) up to 100mm (for multiple layers or insulated panels).
- Consistent Quality: Manufactured under strict ISO-compliant processes (details available upon request).
- Free Samples: We offer complimentary samples for bulk buyers to evaluate before commitment.
Detailed Specifications (Selected Lengths)
| Length | Thread Diameter | Drive Type | Recommended Gauge (Metal Stud) |
|---|---|---|---|
| 13 mm | #6 (3.5 mm) | Phillips #2 | 20 – 25 ga |
| 25 mm | #6 (3.5 mm) | Phillips #2 | 18 – 22 ga |
| 38 mm | #7 (3.9 mm) | Phillips #2 / Square | 16 – 20 ga |
| 50 mm | #8 (4.2 mm) | Phillips #2 / Square | 14 – 18 ga |
| 75 mm | #9 (4.8 mm) | Phillips #3 | 12 – 16 ga |
| 100 mm | #10 (5.1 mm) | Phillips #3 | 10 – 14 ga |
Advantages for Your Projects
- Time Savings: The sharp point and optimized thread reduce driving time by up to 30% compared to ordinary screws.
- Lower Rework Rates: High hardness minimizes head popping and screw breakage, ensuring a professional finish.
- Versatile Applications: Suitable for commercial ceilings, residential drywall, partition walls, and insulated metal panels.
- Consistent Torque Transfer: Precision-formed recess reduces cam-out, even with high-speed auto-feed screwdrivers.
- Environmentally Friendly Finishing: Black phosphate is RoHS-compliant (certificates available on request).
As a trusted trading company with US$1M–US$1.5M annual export value, Hefei SENOTECH ensures that every batch of gypsum screws is inspected for hardness, thread consistency, and coating uniformity. Our flexible length range (13mm–100mm) covers nearly all drywall and metal stud fastening needs. We welcome bulk orders, OEM customization, and provide free samples to serious buyers. Additionally, our logistics team ships to major ports worldwide with reliable lead times.
Contact us today to receive your free sample pack and experience the difference of high-hardness black phosphate gypsum screws. With our competitive pricing and quality commitment, you can confidently standardize on SENOTECH for your next project.
Frequently Asked Questions (FAQ)
- Q: What is the hardness of these screws? A: Our screws are case-hardened to a surface hardness of 560 HV or higher, ensuring reliable penetration into metal studs without deformation.
- Q: Are free samples truly free? A: Yes, we offer complementary samples (up to a certain quantity) for potential bulk buyers. Freight charges may apply for remote destinations; please contact us to discuss.
- Q: Can I get screws longer than 100mm? A: The standard range is 13–100mm. Custom lengths up to 150mm may be available upon request (MOQ applies).
- Q: Are these screws suitable for wood studs? A: They are optimized for metal studs. For wood studs, we recommend our wood-specific drywall screws with coarse threads. Please inquire.
- Q: Do you provide OEM packaging? A: Yes, we offer custom branding and packaging options. Minimum order quantities for OEM start at 10,000 pieces per length.
- Q: What certifications do your screws hold? A: Our manufacturing process follows ISO 9001 standards, and the black phosphate coating meets RoHS requirements. Specific certificates are available for review upon request.
- Q: How are the screws packed for export? A: Standard bulk packing in corrugated cartons (25 kg per box). Smaller retail-ready packs are available for distributors.
- Q: What is the average lead time for a 20-foot container? A: Approximately 25–35 days after order confirmation, depending on quantity and production schedule.
Send Inquiry to This Supplier
1Yr
Business Type
Trading Company
Year Established
2020
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
Others
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