Shandong Weiran Building Materials Co., Ltd. is one of the leading manufacturers and suppliers of drill pin in China. If you're going to wholesale durable drill pin made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.
Product Introduction
Drill pin are high-integrated high-strength fasteners developed for steel structure fastening, sheet joining and engineering installation, eliminating tedious pre-drilling and tapping required for conventional screws. Manufactured from high-hardness carbon steel with precision-machined drill bit tip and integrated thread design, they combine drilling, tapping and locking into one single operation and can be installed directly with power drills.
Core Product Advantages
- Integrated drill and thread design for high efficiency: No pre-drilling or pre-tapping needed. Built-in precision hard drill point enables one-step drilling, tapping and tightening via electric screwdriver or drill to save construction time.
- High hardness and strong penetration against slipping: Premium forged carbon steel with overall quenching treatment reaches HRC 52–58 hardness, featuring sufficient core toughness and tensile strength ≥1000MPa.
- Precision deep thread for tight non-loosening fastening: Dense coarse uniform threads bite firmly into substrates without gaps after penetration to prevent loosening.
- Wide versatility across multiple industries: Complete size range fits thin/thick sheets, square tubes and profiles for steel construction, photovoltaic projects, interior renovation, storage rack and home appliance assembly.
- Standardized production for stable consistent quality: Minimal dimensional deviation, high yield rate and low wastage ideal for large-scale bulk engineering construction.
Product Specifications
|
Item |
Details |
|
Product Name |
Drill pin for wall, Self-Drilling Screw for building |
|
Material |
Premium high-hardness carbon steel with galvanized anti-corrosion surface treatment |
|
Head Type |
Hex washer head with integrated EPDM waterproof rubber washer (no extra gasket required) |
|
Tensile Strength |
≥1000MPa; excellent resistance against tension, fracture and vibration-induced loosening |
|
Available Sizes |
Diameters: 4.2, 4.8, 5.5, 6.3mm; Lengths: 32, 38, 50, 75mm in full range |
Application Scenarios
Steel frame fastening
Firm bite with vibration resistance for prefabricated steel structure projects.
01
PV bracket installation
Fix solar mounting frames and outdoor metal supports with rustproof, wind and seismic resistant performance.
02
Residential and commercial decoration
Fast convenient installation for bulk interior fit-out projects.
03
Storage and home appliance assembly
Secure storage racks, equipment housings and hardware components precisely without substrate damage for factory mass production and equipment commissioning.
04
Outdoor equipment fixing
Anti-rust and weather-resistant for open-air environments with drastic temperature changes and rain erosion.
05
Product Selection Guide
Constructed of high-hardness carbon steel, thick galvanized anti-corrosion coating and integrated waterproof washer, these drill pins feature drill-free quick installation, reliable penetration and all-in-one waterproof anti-rust performance, the preferred fastener for steel structure, metal roof and photovoltaic projects.
Application Precautions
- Match screw diameter and length to substrate thickness before installation.
- Keep drill perpendicular to workpiece at steady speed; tilted operation may cause broken drill tips, screw slippage or sheet deformation.
- Apply appropriate tightening torque; over-tightening will crush rubber washers and deform panels.
- Designed for light and medium-duty steel fastening only; prohibited for heavy load-bearing main structural components to avoid potential safety hazards.
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