5/16 X 1" Type A Self Tapping Sheet Metal Screws | Indented Hex Washer Head | Unslotted Drive | Steel Zinc & Bake | 7/16" A/F (1250/Pkg.)

Mutual ScrewSKU: 311607AWKC

Price:
Sale price$327.52 Regular price$502.39per 1250( $0.26 each)
Pieces 1250
Measurement type Inch
Thread size 5/16
Length 1
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 32.0 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

1250 BULK Type A Self Tapping Sheet Metal Screws feature an Indented Hex Washer Head and an unslotted drive for high-torque, flush-mount assemblies. Made from steel with a zinc baked finish, these fasteners form secure threads in thin metal without pre-drilling.

Specs

  • Dimensions: Diameter 5/16 inches; Length 1 inch; Head across flats 7/16 inches
  • Finish: Zinc baked
  • Drive type: Unslotted
  • Material grade: Steel
  • Thread type: Self tapping

Features

  • Self tapping thread form: Forms threads in thin sheet metal during drive, enabling rapid, pre-drill-free assemblies and reducing production cycle times.
  • Indented Hex Washer Head: Provides flush seating with a large bearing surface for even load distribution, aiding sealing and panel integrity.
  • Unslotted drive: Hex drive geometry offers high torque transmission, minimizes cam-out, and enhances tamper-resistance when paired with correct tooling.
  • Corrosion resistance: Zinc baked finish delivers uniform coating and improved resistance to corrosion in indoor and outdoor environments.
  • Material and strength: Steel construction delivers robust shear and clamping strength suitable for metal-to-metal fastening in enclosures and brackets.
  • Use cases: Ideal for automotive trim and body panels, HVAC ductwork, electrical enclosures, appliance assemblies, and other sheet metal applications requiring reliable self tapping performance.

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800-222-0324

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