Black Phosphate Coated Drywall Screws with Self-Piercing Needle Point and EN 14566 Compliance
Price:
0.01 USD/PCS
MOQ:
1TON
Delivery Time:
15DAY
Brand:
QBH
Product Description
Black Phosphate Drywall Screws, Bugle Head, Self-Tapping
Product Overview
Self-tapping drywall screws manufactured to EN 14566 and ASTM C1002, featuring a bugle head with Phillips (PH2) cross recess drive. These screws incorporate a sharp needle point that enables self-piercing into plasterboard and light-gauge steel framing without pre-drilling.
- Material: Case-hardened carbon steel (AISI 1018 or equivalent)
- Coating: Black phosphate coating for mild corrosion resistance
- Thread Types: Coarse thread (timber framing) and fine 60° twin thread (metal studs)
- Diameter Range: 3.5 mm to 4.8 mm
- Length Range: 25 mm to 150 mm
Technical Specifications
| Standard Compliance | EN 14566:2008+A1:2009, ASTM C1002 |
|---|---|
| Drive Type | Phillips No. 2 (PH2) recess |
| Head Type | Bugle head, countersunk profile |
| Head Diameter | Approximately 8.0 mm |
| Thread Configuration | Fully threaded along entire shank |
| Surface Hardness | Minimum Rockwell C44 |
Thread Types & Applications
| Thread Type | Features | Applications |
|---|---|---|
| Coarse Thread | Single-lead thread with wider pitch | Fixing plasterboard to timber framing |
| Fine Thread | 60° twin thread geometry, requires less torque to drive | Fastening plasterboard to light-gauge steel framing up to 0.79 mm thickness |
Note: For steel framing thicker than 0.79 mm, a longer screw with minimum 10 mm penetration into the metal is required.
Material & Coating Properties
- Material: Case-hardened carbon steel (AISI 1018 or equivalent)
- Coating: Black phosphate coating provides mild corrosion resistance
- Benefits: Reduces friction during installation, non-reflective matte black finish
- Application Scope: Suitable for internal use only; not recommended for exterior or high-moisture environments
Certifications & Quality Assurance
How do you let me trust you?
Jiaxing City Qunbang Hardware Co., Ltd has its own right of import and export. QBH trademark is registered in China, United States, and European Union. You can verify our company registration information in the China Industry and Commerce system.
How do you control your quality?
We implement comprehensive quality control: Incoming Quality Control (IQC) → Process Quality Control (PQC) → Output Quality Control (OQC). Random samples are sent to TUV for testing. QBH company promises responsibility for returns or replenishment if quality issues are found.
Could you provide free samples?
For new customers, we provide free samples for standard fasteners with customers paying express charges. For existing customers, we provide free samples and cover express charges.
Do you accept small orders?
QBH company accepts small orders if items are in stock. Stainless steel fasteners typically have higher stock availability than carbon steel fasteners.
How about your delivery time?
We maintain high efficiency: stainless steel fastener delivery time is approximately 15 days, carbon steel fastener delivery time is approximately 30 days.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Jiaxing City Qunbang Hardware Co., Ltd
Location
No.375,Tongle Road,Jiaxing City,Zhejiang Province,China
Contact Person
Lance