Minerallac 12 x 2" Self-Tapping Sheet Metal Screws with Hex Washer Head
Professional Grade Fastening Solutions for Sheet Metal Applications
Minerallac delivers reliable fastening performance with these 12 x 2" self-tapping sheet metal screws featuring hex washer head design and slotted drive configuration. Constructed from steel with zinc plated finish, these screws provide dependable connection strength for sheet metal installations and professional applications requiring secure, long-lasting fastening solutions.
Professional Features & Benefits
- 12 x 2" Size Configuration: Optimal length and diameter for versatile sheet metal fastening applications with reliable holding power.
- Hex Washer Head Design: Provides increased bearing surface and torque distribution for secure installation and professional appearance.
- Slotted Drive System: Compatible with standard slotted drivers for convenient installation using common tools.
- Zinc Plated Steel Construction: Corrosion-resistant finish over steel base material ensures durability and extended service life.
- Self-Tapping Thread Design: Type-A thread configuration creates its own mating threads for efficient installation in sheet metal.
- Professional Grade Materials: Steel construction with protective zinc plating delivers consistent performance in demanding applications.
Technical Specifications
- Country Of Origin: China
- Drive Type: Slotted
- Driver Size: 16-May
- Head Color: Silver
- Head Height: 0.34
- Head Type: Hex Washer Head
- Head Width: 0.312
- Product Finish: Zinc Plated
- Product Length: 2 in
- Product Material: Steel
- Product Size: 12 x 2
- Product Type: Sheet Metal Screw
- Thread Size: 11
- Thread Type: Type-A
Professional Applications
- HVAC Equipment Installation and Maintenance
- Electrical Enclosure Assembly
- Commercial Building Construction
- Industrial Equipment Mounting
- Sheet Metal Fabrication Projects
- Professional Contractor Applications
- Maintenance and Repair Operations
Why Choose Minerallac Quality?
Minerallac fastening solutions combine steel construction with zinc plated corrosion protection to deliver dependable performance in professional applications. The hex washer head design and Type-A self-tapping threads ensure secure installation and long-term reliability for sheet metal fastening requirements.
Manufacturer Resources
Product Specs
- Drive Type:
- Slotted
- Driver Size:
- 16-May
- Head Color:
- Silver
- Head Height:
- 0.34
- Head Type:
- Hex Washer Head
- Head Width:
- 0.312
- Product Finish:
- Zinc Plated
- Product Length:
- 2 in
- Product Material:
- Steel
- Product Size:
- 12 x 2
- Product Type:
- Sheet Metal Screw
- Thread Size:
- 11
- Thread Type:
- Type-A
- Department:
- Electrical
- Product Subgroup:
- Self-Tapping Screws
- Product Group:
- Hangers, Supports & Fasteners
Minerallac 77232J – Frequently Asked Questions
1) Will a #12 x 2 inch self-tapping sheet metal screw work for fastening into sheet metal duct and enclosures?
That is what the Minerallac 77232J is built for. It is a #12 diameter, 2 inch long sheet metal screw with Type-A threads, which cut their own mating thread in sheet metal as they drive, so no tapping step is needed. Steel body with zinc plated finish. Typical use is HVAC equipment, electrical enclosure assembly, and sheet metal fabrication work.
2) What driver do I need for the Minerallac 77232J screws, a hex socket or a screwdriver?
These are slotted drive, not hex drive. The head is a hex washer head, so the hex shape is the bearing flange, not a drive recess, and you install them with a standard flat blade slotted driver or a slotted bit. If your crew is running hex drivers off impact guns, that will not engage these.
3) Does the hex washer head need a separate washer under it?
No separate washer is required. The hex washer head on the 77232J has an integral flange that spreads clamp load across thin material, with a head width of 0.312 and head height of 0.34. That bearing surface is what keeps the screw from pulling through light gauge sheet.
4) Are these zinc plated screws suitable for outdoor or damp locations?
Zinc plated steel gives corrosion resistance for indoor and protected applications. For direct weather exposure, coastal air, or wash-down areas, a stainless or hot dip galvanized fastener is the better call; zinc plating is a thin sacrificial coating, not a marine finish.
5) What is the difference between a Type-A thread screw and a self-drilling Tek screw?
Type-A is a self-tapping sheet metal thread with a coarse, widely spaced thread and a gimlet point. It forms its own thread but does not drill its own hole in heavier stock, so it wants a pilot hole in anything beyond thin sheet. A self-drilling screw has a drill point that makes the hole and the thread in one shot. For thin gauge duct, flashing, and enclosure panels, the Type-A thread on the 77232J holds well; for structural steel or heavy gauge, use a self-drilling fastener instead.
6) How thick a material can I fasten with a 2 inch sheet metal screw?
At 2 inches overall length, the 77232J gives plenty of thread to pass through stacked sheet layers, a strut or bracket plus panel, or a standoff and still bite. Keep in mind that a Type-A thread holds by engaging thin material, so the holding power comes from the sheet it threads into, not from the full 2 inches of shank.
7) What is the exact part number and size for the Minerallac 12 x 2 inch sheet metal screw?
Minerallac part number 77232J. Size is #12 diameter by 2 inch length, slotted hex washer head, zinc plated steel.
How fast can I get the Minerallac 77232J 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 77232J come with a warranty?
Absolutely. The Minerallac 77232J 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 77232J?
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