Phillips Machine Screw - Flat Head, 1/4"-20 x 3-1/2"
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Phillips machine screw, flat head, 1/4"-20 thread with a length of 3-1/2". Made from 18-8 stainless steel for corrosion-resistant performance in appropriate environments.
Best used when a flush, countersunk finish is required in metal panels, equipment enclosures, and similar assemblies.
Practical tips: ensure your hole size and thread match 1/4"-20 to avoid cross-threading; stainless steel offers good durability but proper mating materials and installation practices help prevent galling and corrosion-related issues.
Compatible Applications
- General metal-panel assemblies requiring a flush countersunk screw
- Machinery and equipment with 1/4"-20 threaded holes
- Marine hardware or outdoor equipment where corrosion resistance is beneficial
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.