5/16"-18 X 1-1/2" Tamper Resistant Machine Screws | Button Head | Pin-In Six Lobe Drive | 18/8 Stainless Steel (100/Pkg.)
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5/16"-18 X 1-1/2" Tamper Resistant Machine Screws | Button Head | Pin-In Six Lobe Drive | 18/8 Stainless Steel (100/Pkg.)

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5/16"-18 X 1-1/2" Tamper Resistant Machine Screws | Button Head | Pin-In Six Lobe Drive | 18/8 Stainless Steel (100/Pkg.)

Mutual Screw & SupplySKU: T6B31C150SS
Price:
$119.00per 100( $1.19 each)
Pieces 100
Thread size 5/16-18
Length 1-1/2
Material 18/8 Stainless Steel
Grade 18/8
Finish Plain
Drive Pin-In Six Lobe Drive
Driver size T40
Head style Button
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 engineered for secure, high-load assemblies in OEM and manufacturing environments. The tamper resistant button head machine screws employ a pin-in 6-lobe drive to enable precise torque control and concealed fastener access in restricted spaces.

Specs

  • Diameter: 5/16 inch
  • Length: 1-1/2 inch
  • Thread type: 5/16-18 UNC
  • Drive type: Pin-In 6-Lobe
  • Material grade: 18/8 stainless steel (AISI 304)

Features

  • Tamper resistance: Pin-In 6-Lobe drive provides security against unauthorized removal and tampering in critical equipment housings.
  • Corrosion resistance: 18/8 stainless steel delivers corrosion resistance across industrial environments and wash-down areas.
  • Head geometry: Button head creates a flush profile and uniform load distribution across mating surfaces.
  • Installation efficiency: Tooling requires matching pin-in 6-lobe socket, enabling controlled torque and consistent seating.
  • Packaging: Packaged as 100 screws per package for bulk assembly workflows.
  • Ideal applications: Suitable for electrical enclosures, control panels, machinery frames, and automotive manufacturing assemblies where visibility and tamper resistance matter.

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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