3/8 X 1-1/4" Type A Self Tapping Sheet Metal Screws | Indented Hex Washer Head | Unslotted Drive | Steel Zinc & Bake (600/Pkg.)

Mutual ScrewSKU: 3720AWKC

Price:
Sale price$414.99 Regular price$502.39per 600( $0.69 each)
Pieces 600
Measurement type Inch
Thread size 3/8
Length 1-1/4
Material Steel Zinc & Bake
Finish Zinc Plated
Drive Unslotted
Head style Indented Hex Washer Head
Point type Type A
Threads per inch 12
Thread style Fully Threaded
Weight 27.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Professional-grade Type A self-tapping sheet metal screws designed for reliable fastening in thin-gauge metal assemblies. The indented hex washer head and unslotted drive enable secure seating and consistent torque with hex drivers in a zinc plated, baked enamel finish.

Specs

  • Diameter: 3/8 inches
  • Length: 1-1/4 inches
  • Finish: Zinc plated with baked enamel coating
  • Drive type: Unslotted
  • Material: Steel
  • Thread type: Self-tapping

Features

  • Self-tapping design: Enables direct threading into sheet metal without pre-drilling, reducing assembly time and tool requirements.
  • Indented hex washer head: Provides flush seating, distributes load across a larger bearing surface, and improves torque resistance during installation.
  • Unslotted drive: Suited for hex driver engagement, minimizing tool slippage and cam-out under high fastener torque.
  • Finish: Zinc plating with baked enamel coating offers corrosion resistance in typical indoor and mild outdoor environments.
  • Pack quantity: 600 per package, optimizing bulk procurement for production lines and maintenance inventories.
  • Ideal applications: Used for fastening thin gauge sheet metal in automotive trim, appliance assemblies, HVAC enclosures, and metal cabinetry.
  • Installation guidance: Use a compatible hex driver and apply steady torque to achieve full thread engagement without over-tightening, ensuring clean thread formation and pull-out resistance.

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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