#4-40 X 1" Tamper Resistant Machine Screws | Flat Head | Spanner Drive | 18/8 Stainless Steel (100/Pkg.)

Mutual ScrewSKU: 0416SMF

Price:
Sale price$36.67per 100( $0.37 each)
Pieces 100
Measurement type Inch
Thread size #4-40
Length 1
Material 18/8 Stainless Steel
Grade 18/8
Finish Plain
Drive Spanner
Head style Flat
Threads per inch 40
Weight 1.0 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 precision mounting in panels, electronics enclosures, and machinery. Flat head machine screws with spanner drive provide a flush surface and reliable torque transfer in demanding environments.

Specs

  • Dimensions: Length 1 inch
  • Finish: 18/8 stainless steel (304)
  • Drive type: Spanner drive
  • Material grade: 304 stainless steel
  • Thread type: 4-40 UNC

Features

  • Corrosion resistance: 304 stainless steel construction provides robust rust and corrosion resistance in harsh industrial settings.
  • Flush mounting: Flat head countersunk design yields a low-profile surface for clean panel mounting and reduced snag risk.
  • Torque transfer: Spanner drive enables secure torque transfer in tight spaces, minimizing slack and cam-out during installation.
  • Material and finish: 304 stainless steel with 18/8 composition ensures long-term mechanical strength and surface passivation against corrosion.
  • Thread specs: 4-40 UNC threaded fasteners suitable for small-diameter, high-precision electronics and control panel applications.
  • Pack quantity: 100 pieces per package for batch assembly and field service kits.
  • Ideal use cases: electronics enclosures, control panels, automotive assemblies, and machinery housings where discreet fasteners and low-profile heads are required.

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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