Minerallac #8 x 2-1/2" Fine Th...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.20
$27.14
Minerallac #8 x 2-1/2" Fine Thread Drywall Screws with Bugle Head and Black Phosphate Finish, 100 Pack

Minerallac #8 x 2-1/2" Fine Thread Drywall Screws with Bugle Head and Black Phosphate Finish, 100 Pack

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Model: 79840J

In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.20
$27.14
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Minerallac #8 x 2-1/2" Fine Thread Drywall Screws with Bugle Head and Black Phosphate Finish

Professional Drywall Installation Hardware for Metal Stud Applications

Minerallac fine thread drywall screws deliver reliable fastening performance for professional drywall installation on metal studs. These #8 x 2-1/2" screws feature a bugle head design with black phosphate finish and Phillips drive system, engineered for secure attachment of drywall to metal studs from 25 gauge through 20 gauge thick. The longer 2-1/2" length makes them ideal for multiple layers or insulation applications, providing versatile solutions for commercial and residential construction projects.

Professional Features & Benefits

  • Fine Thread Design: Provides superior holding power and reduced stripping in metal stud applications compared to coarse thread alternatives.
  • Bugle Head Configuration: Creates clean, flush installation that won't tear drywall paper or create surface imperfections during installation.
  • Black Phosphate Finish: Delivers corrosion resistance and professional appearance while reducing visibility of screw heads.
  • 2-1/2" Length: Accommodates multiple drywall layers and insulation thickness for versatile installation requirements.
  • Phillips Drive System: Ensures reliable bit engagement and consistent torque transfer during high-volume installation work.
  • Steel Construction: Provides structural strength and durability for long-term fastening performance in demanding applications.
  • Sharp Point Design: Penetrates metal studs efficiently without pre-drilling, reducing installation time and labor costs.

Technical Specifications

  • Country Of Origin: Taiwan
  • 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: 2-1/2 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
  • Office Building Interior Finishing
  • Retail Space Build-Out
  • Light Commercial Renovation
  • Professional Contractor Applications

Why Choose Minerallac Quality?

Minerallac drywall screws combine precision manufacturing with reliable steel construction and black phosphate finish for consistent performance in professional applications. The fine thread design and bugle head configuration ensure secure, flush installation while the sharp point design reduces installation time and effort for improved productivity on every project.

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:
2-1/2 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 79840J – Frequently Asked Questions

1) Are fine thread drywall screws like the Minerallac #8 x 2-1/2 inch right for metal studs or wood framing?
Fine thread is the metal stud screw. Minerallac part 79840J is a #8 x 2-1/2 inch fine thread drywall screw with a sharp point, rated for metal studs from 25 gauge through 20 gauge, and the sharp point taps the steel without pre-drilling. For wood framing you want a coarse thread drywall screw instead, since fine threads strip out in wood and hold poorly.
2) Does a bugle head drywall screw sit flush without tearing the paper face?
That is what the bugle head is for. The tapered head on these #8 screws seats itself into the board face and compresses the paper rather than cutting it, so you get a dimple ready for compound instead of a torn surface. Head diameter is 0.339 inch with a 0.03 inch head height, so it is a low-profile seat that mud covers easily.
3) Are black phosphate drywall screws okay to use in a damp area or outdoors?
Keep them inside. Black phosphate on these steel screws gives light corrosion resistance and a dark, low-visibility head for interior finish work, not the protection an exterior or wet-location fastener needs. For exposed or high-moisture work, use a screw with a proper corrosion-resistant coating or stainless construction.
4) Do I need to pre-drill metal studs before running these screws?
No pre-drilling on light gauge steel. The sharp point on these #8 fine thread screws pierces and taps 25 to 20 gauge studs on its own. Heavier structural steel studs are outside that range and call for a self-drilling point instead.
5) What driver bit do I need for Minerallac 79840J drywall screws?
A Phillips bit. These screws use a Phillips drive recess, so a standard Phillips drywall bit in a collated or standard screw gun with a depth-sensing nose will run them. No square drive or Torx bit required.
6) How many screws come in a jar of Minerallac 79840J and how far does that go?
The 79840J is packaged 100 screws per jar. At typical drywall screw spacing that is a partial sheet count, so for a full commercial hang you will be ordering jars by the case rather than one at a time.
How fast can I get the Minerallac 79840J 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 79840J come with a warranty?
Absolutely. The Minerallac 79840J 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 79840J?
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
Why buy the Minerallac 79840J from ZenSupply?
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