Skip to content

HOTLINE - 1-888-514-5151

Get 10% off your first order - 🎉Use NEWTOPBT | September 30th

100% secure payment

Get 10% off your first order - 🎉Use NEWTOPBT | September 30th
1/4-20 x 3" Flat Head Phillips Machine Screws | Zinc Plated Kanebridge Fasteners
Kanebridge

Kanebridge #1/4-20 x 3" Phillips Flat Head Fully Threaded Zinc Machine Screws - 100 Qty

Save 37% Save 37%
$11.00
$11.00 - $11.00
$11.00
$6.88
$6.88 - $6.88
$6.88
Availability:
700 in stock, ready to be shipped
SKU 1/4-20X3

100% Satisfaction Guaranteed

We'll exchange or refund any product that doesn't meet your expectations.

Uncover the full potential of this product

Upgrade your fastening projects with Kanebridge 1/4-20 x 3" Zinc Plated Flat Head Phillips Machine Screws. Engineered for durability and precision, these fully threaded machine screws provide reliable performance in metal, plastic, and mechanical assemblies. The zinc plating enhances corrosion resistance, while the flat head design offers a smooth, flush installation—ideal for hardware, construction, repair, and maintenance applications. Whether you're replacing old hardware or completing a new build in 50% offer, these machine screws deliver strength, consistency, and lasting reliability.

  • Exclusive 50% OFF

    • Coarse 1/4-20 thread ensures 50 percent offer in firm engagement, smooth installation, and secure fastening in multiple materials.


  • Zinc Plated Protection

    • White zinc coating resists rust, moisture, and environmental wear for long-lasting performance.


  • Flat Head Phillips Drive

    • Countersinks cleanly for a flush finish and allows easy installation using standard Phillips tools.


  • Fully Threaded Design

    • Full-length threading maximizes grip strength and versatility for mechanical, electrical, and construction tasks.


  • Durable Steel Construction

    • Made from high-quality steel for strength, reliability, and consistent performance under load.


  • Brand: Kanebridge

  • Size: 1/4-20 x 3"

  • Thread Type: Coarse, Fully Threaded

  • Head Type: Flat Head, Phillips Drive

  • Material: Steel

  • Finish: White Zinc Plated

  • Application: Machinery, construction, hardware, repairs

  • Drive Type: Phillips


Frequently Asked Questions

The limited-time 50% OFF deal applies to the full 100-count box of Kanebridge 1/4-20 x 3" fully threaded, zinc-plated Phillips flat head machine screws—allowing you to stock up on high-quality hardware at half the price.

“Flat head” means the screw head is countersunk so it sits flush or below the surface for a clean finish; “Phillips” drive helps easier insertion with a screwdriver. Good where appearance and smoothness matter.

Zinc plating gives moderate corrosion resistance and protects the steel from rust — good for indoor or mild-environment metal assemblies, extending fastener life.

These screws require pre-tapped holes or matching nuts; don’t use on soft wood or material without threading. Also, zinc-plated screws are not ideal for heavy-duty or outdoor applications needing high strength or weather resistance.

Yes — as long as the threads remain intact and the mating parts are undamaged, you can reuse them. Machine screws generally hold well under multiple uses.