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Minerallac #8 x 2-1/2" Fine Thread Drywall Screws with Bugle Head and Black Phosphate Finish, 100 Pack
Model: MIN-79840J
Minerallac #8 x 2-1/2" Fine Thread Drywall Screws with Bugle Head and Black Phosphate FinishProfessional Drywall Installation Hardware for Metal Stud ApplicationsMinerallac fine thread drywall screws...
Minerallac
$50.20
$27.14
Minerallac #8 x 3" Drywall Screws with Bugle Head and Fine Thread
Professional-Grade Steel Fasteners for Metal Stud Applications
Minerallac delivers reliable fastening performance with these #8 x 3" drywall screws, engineered specifically for attaching drywall to metal studs from 25 gauge through 20 gauge thick. The black phosphate steel construction with bugle head design and fine thread configuration ensures secure attachment for multiple layers or insulation applications, providing professional contractors with dependable fastening solutions.
Professional Features & Benefits
- 3-inch Length: Ideal for multiple drywall layers or insulation applications, providing extended reach and secure penetration
- Fine Thread Design: Optimized for metal stud attachment with superior holding power and reduced stripping risk
- Bugle Head Configuration: Countersinks cleanly without tearing drywall paper, creating smooth finished surfaces
- Black Phosphate Finish: Corrosion-resistant coating ensures long-term durability and professional appearance
- Phillips Drive: Standard drive system compatible with common installation tools for efficient application
- Steel Construction: High-strength material provides reliable fastening performance under load
- Sharp Point Design: Penetrates metal studs efficiently without pre-drilling requirements
Technical Specifications
- Country Of Origin: China
- Drive: Phillips
- Head Color: Black
- Head Diameter: 0.339
- Head Height: 0.03
- Head Type: Bugle Head
- Point Type: Sharp Point
- Product Finish: Black Phosphate
- Product Length: 3 in
- Product Material: Steel
- Product Size: 8
- Product Type: Drywall Screw
- Screw Type: Drywall Screw
- Thread Size: 15
- Thread Type: Fine Threads
Professional Applications
- Commercial Drywall Installation
- Residential Construction Projects
- Multi-Unit Housing Development
- Professional Office Build-Outs
- Retail Space Construction
- Light Commercial Renovation
- Insulated Wall Systems
Why Choose Minerallac Quality?
Minerallac provides professional-grade fastening solutions with steel construction and black phosphate finish for reliable performance. The fine thread design and bugle head configuration deliver consistent results for metal stud applications, ensuring professional installation quality and long-term durability in demanding construction environments.
Manufacturer Resources
Product Specs
- Drive:
- Phillips
- Head Color:
- Black
- Head Diameter:
- 0.339
- Head Height:
- 0.03
- Head Type:
- Bugle Head
- Point Type:
- Sharp Point
- Product Finish:
- Black Phosphate
- Product Length:
- 3 in
- Product Material:
- Steel
- Product Size:
- 8
- Product Type:
- Drywall Screw
- Screw Type:
- Drywall Screw
- Thread Size:
- 15
- Thread Type:
- Fine Threads
- Department:
- Electrical
- Product Subgroup:
- Self-Tapping Screws
- Product Group:
- Hangers, Supports & Fasteners
Minerallac 79848J – Frequently Asked Questions
1) Will a #8 x 3 inch fine thread drywall screw work on metal studs, or do I need coarse thread?
Fine thread is the right choice for metal studs. The Minerallac 79848J is a #8 x 3 inch fine thread drywall screw built for attaching drywall to metal studs from 25 gauge through 20 gauge. Coarse thread screws are what you reach for on wood framing. Use the fine thread version here and the sharp point starts in light gauge steel without pre-drilling.
2) Is a 3 inch drywall screw too long for a single layer of 5/8 drywall?
Yes, it's more screw than a single layer needs. The 3 inch length on the Minerallac 79848J is meant for double or triple layer drywall assemblies and for going through insulation or furring to reach the stud. For one layer of 5/8 board on metal studs, a shorter fine thread screw (1-1/4 inch range) is the normal call. Over-long screws on a single layer just leave the excess inside the cavity.
3) Will a bugle head screw countersink into drywall without tearing the paper?
That's exactly what the bugle head is for. The flared underside on the Minerallac 79848J seats the head just below the face of the board instead of punching through the paper, so you get a dimple you can tape and finish. Head diameter is 0.339 inch with a 0.03 inch head height, so it sits shallow and takes compound cleanly.
4) Can black phosphate drywall screws be used outdoors or in a damp area?
No. Black phosphate on the Minerallac 79848J is a mild corrosion-resistant coating for dry interior work, not a weather coating. For exterior sheathing, soffits, bathrooms with real moisture exposure, or anything damp, use a hot-dip galvanized or ceramic coated fastener instead. These are steel with a phosphate finish and will rust if they stay wet.
5) Can I use these to hang drywall over rigid insulation on a metal stud wall?
Yes, that is one of the intended uses. The 3 inch length on the Minerallac fine thread screw is specified for insulated wall systems and multi-layer assemblies, giving you enough shank to pass through the insulation and still get solid thread engagement in a 25 to 20 gauge stud.
6) What driver bit do these Minerallac drywall screws take?
Phillips drive. The 79848J is a #8 screw with a Phillips recess, so a standard #2 Phillips bit in a screw gun or collated drywall gun drives them. No square or star bit needed.
How fast can I get the Minerallac 79848J delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Minerallac 79848J come with a warranty?
Absolutely. The Minerallac 79848J is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Minerallac 79848J?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
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