Minerallac Self-Drilling TEK S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.23
$21.33
Minerallac Self-Drilling TEK Sheet Metal Screws #12-14 x 1" Hex Washer Head with #3 Drill Point, 100 Pack

Minerallac Self-Drilling TEK Sheet Metal Screws #12-14 x 1" Hex Washer Head with #3 Drill Point, 100 Pack

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Model: 79216J
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.23
$21.33
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Minerallac Self-Drilling TEK Sheet Metal Screws #12-14 x 1" Hex Washer Head with #3 Drill Point

Professional Self-Drilling Fasteners for Sheet Metal Applications

Minerallac delivers reliable fastening solutions with these professional-grade self-drilling TEK sheet metal screws. Featuring a #12-14 thread size with 1" length, hex washer head design, and #3 drill point, these zinc-plated steel screws provide secure attachment for sheet metal installations without pre-drilling requirements.

Professional Features & Benefits

  • #12-14 Thread Size: Provides optimal holding power and compatibility with standard sheet metal thicknesses for secure fastening applications.
  • 1" Length: Ideal penetration depth for typical sheet metal assemblies while preventing over-penetration damage.
  • Hex Washer Head Design: Combines hex drive convenience with integrated washer for enhanced bearing surface and weather sealing.
  • #3 Drill Point: Self-drilling capability eliminates pre-drilling requirements, reducing installation time and labor costs.
  • Zinc Plated Finish: Corrosion-resistant coating extends service life in indoor and outdoor applications.
  • Steel Construction: Durable material provides reliable strength and thread integrity for long-term performance.
  • Type-BSD Threading: Specialized thread design optimized for sheet metal penetration and retention.

Technical Specifications

  • Country Of Origin: Taiwan
  • Head Color: Silver
  • Head Height: 0.303
  • Head Type: Hex Washer Head
  • Head Width: 0.309
  • Product Finish: Zinc Plated
  • Product Length: 1 in
  • Product Material: Steel
  • Product Size: #12-14
  • Product Type: Tek Screws
  • Thread Size: 14
  • Thread Type: Type-BSD

Professional Applications

  • HVAC ductwork and equipment mounting
  • Electrical enclosure assembly
  • Metal roofing and siding installation
  • Industrial equipment fabrication
  • Commercial building construction
  • Maintenance and repair operations
  • Sheet metal fabrication projects

Why Choose Minerallac Quality?

Minerallac self-drilling TEK screws combine professional-grade steel construction with zinc-plated corrosion resistance for dependable fastening performance. The precision-engineered #3 drill point and Type-BSD threading ensure consistent installation results across diverse sheet metal applications, delivering the reliability professionals demand for critical fastening requirements.

Manufacturer Resources

Product Specs

Head Color:
Silver
Head Height:
0.303
Head Type:
Hex Washer Head
Head Width:
0.309
Product Finish:
Zinc Plated
Product Length:
1 in
Product Material:
Steel
Wire Size:
#12-14
Product Type:
Tek Screws
Thread Size:
14
Thread Type:
Type-BSD
Department:
Electrical
Product Subgroup:
Self-Tapping Screws
Product Group:
Hangers, Supports & Fasteners

Minerallac 79216J – Frequently Asked Questions

1) Do Minerallac #12-14 TEK screws need a pilot hole in sheet metal?
No pilot hole. The #3 drill point cuts its own hole as you drive, so you go straight in with a hex driver on duct, enclosures, or metal panel. That is the whole point of a self-drilling TEK fastener versus a self-tapping screw, which still needs a pre-drilled hole.
2) How thick a material will a 1 inch #12-14 self-drilling screw go through?
The screw is 1 inch long overall, so your combined stack thickness plus the drill point and thread engagement has to fit inside that inch. For typical duct, enclosure walls, and metal panel work that is plenty. Stacking heavier structural members or going through a thick substrate calls for a longer screw instead.
3) Can these zinc plated TEK screws be used outdoors on metal roofing or siding?
The zinc plated steel finish gives corrosion resistance suited to indoor work and general exterior use such as metal roofing and siding. For coastal exposure, chemical environments, or anywhere in contact with dissimilar metals that drive galvanic corrosion, a stainless or coated fastener is the better call.
4) Is #12-14 x 1 inch the right TEK screw for HVAC duct and electrical enclosures?
Yes, that is the intended use. The #12-14 thread with a 1 inch length covers HVAC ductwork and equipment mounting, electrical enclosure assembly, and general sheet metal fabrication. Lighter gauge trim work is usually done with a #8 or #10; the #12-14 is the heavier of the common duct sizes and gives more thread holding power.
5) Will a hex washer head screw seal a hole in metal panel, or do I need a washer?
The hex washer head has an integral flange that spreads the clamp load and helps seal at the surface, so no separate washer is needed for normal duct and enclosure work. It is not a bonded rubber washer screw, so for a weather seal on an exposed roof panel you want a neoprene washer fastener instead.
6) What does Type-BSD threading mean on a sheet metal screw?
Type-BSD is the thread form used on self-drilling sheet metal fasteners: a drill point ahead of the threads cuts the hole and the trailing thread taps and holds in the metal as the point clears. On the Minerallac #12-14 x 1 inch screw it is paired with a #3 point, which is the common duct and enclosure combination.
7) How many Minerallac 79216J screws come in a jar?
Model 79216J ships 100 screws to a jar, which is the count MRO and service techs usually keep on the truck. Larger production runs are typically bought in bulk cartons of the same #12-14 x 1 inch screw.
How fast can I get the Minerallac 79216J 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 79216J come with a warranty?
Absolutely. The Minerallac 79216J 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 79216J?
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 79216J from ZenSupply?
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