TAMPER-PRUF SCREW #4-40 x 1/2 in Flat Head Tamper-Resistant Machine Screw
The Tamper-Pruf Screw #4-40 Thread Size Flat Head Tamper-Resistant Machine Screw (MPN 121684) is a stainless steel, plain, flat, spanner-drive fastener supplied in a 50-pack. With a 1/2-inch length and #4 drive size…
SKU 3G-OTH-689234
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The Tamper-Pruf Screw #4-40 Thread Size Flat Head Tamper-Resistant Machine Screw (MPN 121684) is a stainless steel, plain, flat, spanner-drive fastener supplied in a 50-pack. With a 1/2-inch length and #4 drive size, it is designed for applications requiring a tamper-resistant solution. 3G Electric sources this and thousands of other industrial fasteners across 14 departments, backed by specialist expertise in combustion, pumps, and controls to ensure you get the right part.
Frequently Asked Questions
What is a Tamper-Pruf Screw #4-40 used for?
This flat head tamper-resistant machine screw is used in security-sensitive assemblies where standard screws are vulnerable to removal. Common applications include electronic enclosures, public fixtures, and industrial equipment requiring a spanner drive to deter tampering.
What are the specifications of the Tamper-Pruf Screw 121684?
The Tamper-Pruf Screw MPN 121684 has a #4-40 thread size, 1/2-inch length, #4 drive size, and is made of stainless steel with a plain finish. It comes in a 50-pack with a flat head and spanner drive for tamper resistance.
Where to buy Tamper-Pruf Screw 121684 worldwide?
3G Electric supplies the Tamper-Pruf Screw 121684 worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this and thousands of other fasteners across 14 departments, including specialist expertise in combustion, pumps, and controls.
How to install a flat head tamper-resistant machine screw?
Install using a compatible spanner bit that matches the #4 drive size. Apply moderate torque to avoid stripping the drive. For stainless steel, use a thread lubricant to prevent galling. Ensure the screw is seated flush in a countersunk hole for a secure, tamper-resistant fit.
TAMPER-PRUF SCREW Products
3G Electric supplies TAMPER-PRUF SCREW flat head tamper-resistant machine screws. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
