Minerallac 1/4-20 x 4" Round Head Machine Screws with Phillips/Slotted Combo Drive, Zinc Plated Steel
Professional Grade Fastening Solutions for Versatile Applications
Minerallac delivers reliable fastening performance with these 1/4-20 x 4" round head machine screws featuring zinc plated steel construction and combo Phillips/slotted drive design. These professional-grade fasteners are engineered for use in pre-tapped holes or with nuts, providing versatile installation options for demanding applications requiring secure, corrosion-resistant connections.
Professional Features & Benefits
- 1/4-20 Thread Size: Standard threading provides reliable engagement and holding power for medium-duty fastening applications
- 4" Length: Extended length accommodates thick materials and provides versatile installation depth options
- Zinc Plated Finish: Corrosion-resistant coating extends service life and maintains appearance in various environmental conditions
- Phillips/Slotted Combo Drive: Dual drive system offers installation flexibility with both Phillips and slotted drivers for enhanced accessibility
- Round Head Design: Low-profile head configuration provides clean finished appearance while distributing load effectively
- Steel Construction: Durable steel material delivers superior strength and reliability for demanding fastening requirements
- 2A External Threads: Precision threading ensures proper fit and engagement with standard tapped holes and nuts
Technical Specifications
- Country Of Origin: China
- Drive Type: Phillips/Slotted Combo
- Driver Size: #3
- Head Color: Silver
- Head Diameter: 0.472
- Head Height: 0.175
- Head Type: Round Head
- Product Finish: Zinc Plated
- Product Length: 4 in
- Product Material: Steel
- Product Size: 1/4"-20
- Product Type: Machine Screw
- Thread Size: 20
- Thread Type: 2A External Threads
Installation & Operation
- Mount the unit in a suitable location with appropriate clearance and access for connections and service.
- Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
- Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
- Configure any available load management or control features as supported by the provided specifications.
- Test automatic transfer or operational functionality and verify proper performance before placing into service.
- Complete final inspection and follow ongoing maintenance practices appropriate to the product category.
Professional Applications
- Electrical Panel Assembly
- Equipment Mounting
- Structural Connections
- Mechanical Assemblies
- Industrial Maintenance
- Commercial Construction
- Repair and Retrofit Projects
Why Choose Minerallac Quality?
Minerallac fasteners deliver consistent performance and reliability with precision-engineered threading and durable zinc plated finish. The steel construction and professional-grade specifications ensure dependable service in demanding applications where secure fastening is critical.
Manufacturer Resources
Product Specs
- Country Of Origin:
- China
- Drive Type:
- Phillips/Slotted Combo
- Driver Size:
- #3
- Head Color:
- Silver
- Head Diameter:
- 0.472
- Head Height:
- 0.175
- Head Type:
- Round Head
- Product Finish:
- Zinc Plated
- Product Length:
- 4 in
- Product Material:
- Steel
- Product Size:
- 1/4"-20
- Product Type:
- Machine Screw
- Thread Size:
- 20
- Thread Type:
- 2A External Threads