5/16"-18 X 3/4" Tamper Resistant Machine Screws | Flat Undercut Head | Pin-In Six Lobe Drive | 18/8 Stainless Steel (100/Pkg.)
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5/16"-18 X 3/4" Tamper Resistant Machine Screws | Flat Undercut Head | Pin-In Six Lobe Drive | 18/8 Stainless Steel (100/Pkg.)

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5/16"-18 X 3/4" Tamper Resistant Machine Screws | Flat Undercut Head | Pin-In Six Lobe Drive | 18/8 Stainless Steel (100/Pkg.)

Mutual Screw & SupplySKU: T6F31C075USS
Price:
$95.71per 100( $0.96 each)
Pieces 100
Thread size 5/16-18
Length 3/4
Material 18/8 Stainless Steel
Grade 18/8
Finish Plain
Drive Pin-In Six Lobe Drive
Driver size T40
Head style Flat Undercut
Weight 2.0 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

Industrial fasteners for security-critical assemblies and rugged equipment housings. This tamper resistant machine screw combines 5/16-18 thread engagement with 3/4 inch length, 304 stainless steel composition, and a Pin-In 6-Lobe Drive for secure, maintenance-friendly installations under harsh environmental conditions.

Specs

  • Dimensions: Diameter 5/16 inch; Length 3/4 inch
  • Finish: 18/8 Stainless Steel
  • Drive Type: Pin-In 6-Lobe
  • Material Grade: 304 Stainless Steel
  • Thread Type: 5/16-18 UNC

Features

  • Tamper resistance: Pin-In 6-Lobe drive requires compatible tooling, deterring unauthorized removal from enclosures and critical machinery.
  • Corrosion resistance: 304 Stainless Steel delivers robust performance in humid, chemically cleaned, and outdoor industrial environments.
  • Flush seating: Flat undercut head enables minimal protrusion and reduced snag risk in dense assemblies.
  • Application scope: Suitable for 5/16-18 threaded holes in machinery, electrical enclosures, and OEM equipment assemblies.
  • Packaging: 100 pieces per package

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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