TAMPER-PRUF SCREW Button Head Tamper-Resistant Machine Screw
The TAMPER-PRUF SCREW Button Head Tamper-Resistant Machine Screw (MPN 21550) is a 1/4-20x1 L fastener supplied in a pack of 25. It features a 5/32 in drive size for secure installation with a tamper-resistant design.
SKU 3G-OTH-689159
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 Button Head Tamper-Resistant Machine Screw (MPN 21550) is a 1/4-20x1 L fastener supplied in a pack of 25. It features a 5/32 in drive size for secure installation with a tamper-resistant design.
Frequently Asked Questions
What is a TAMPER-PRUF SCREW button head tamper-resistant machine screw used for?
This screw is used in security-sensitive industrial applications where standard fasteners could be removed by unauthorized personnel. The tamper-resistant button head design requires a special 5/32 in drive tool, making it ideal for guarding panels, machinery enclosures, and public-access equipment.
What are the specifications of the TAMPER-PRUF SCREW 21550?
The TAMPER-PRUF SCREW 21550 is a button head tamper-resistant machine screw with a 1/4-20 thread size, 1 inch length, and a 5/32 in drive size. It comes in a pack of 25. The tamper-resistant feature prevents unauthorized removal using standard tools.
Where to buy TAMPER-PRUF SCREW 21550 in worldwide?
3G Electric supplies the TAMPER-PRUF SCREW 21550 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source and deliver genuine fasteners across 14 departments, including fasteners and hardware.
How to install a tamper-resistant button head machine screw?
Use a 5/32 in tamper-resistant drive bit (such as a hex or pin-in-hex type) to install the screw. Apply moderate torque to avoid stripping the drive. For best results, pre-drill a pilot hole in the mating material and use a thread-locking compound if vibration is expected.
TAMPER-PRUF SCREW Products
3G Electric supplies TAMPER-PRUF SCREW button head tamper-resistant machine screws. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.