Phillips Machine Screw - Pan Head. 1/4"-20 x 4"
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You have 30 days to request a return. All sale items are final sale.
Replace and fasten with this Seachoice Phillips machine screw—pan head, 1/4"-20 x 4"—made from 18-8 stainless steel for corrosion resistance in marine and outdoor use.
Key Features
- Phillips drive for positive torque transfer
- Pan head profile helps provide a neat, finished look on assembled joints
- 1/4"-20 coarse thread for standard machine-screw fastening
- 4" length for through-bolt style connections
- 18-8 stainless steel construction for improved corrosion resistance
Intended Use
- Marine fastener replacement and general maintenance
- Outdoor hardware and corrosion-resistant fastening
- Securing metal components that accept 1/4"-20 machine screws
Product Details
- Brand: LNS (Seachoice)
- Product: Phillips Machine Screw - Pan Head
- Size: 1/4"-20 x 4"
- Material: 18-8 Stainless Steel
- SKU/Part number: 50-00519
- Variant pack details: not specified in provided product data
- Weight (variant): 680 GRAMS
Parts Desk Insights
Best Use Case: Ideal for replacing worn or missing Phillips pan head machine screws where a 1/4"-20 thread and 4" length are required, especially in wet or salt-exposed installations.
Common Issues: Thread mismatch is the most common cause of fitment problems—verify you’re using the correct 1/4"-20 (coarse) thread before installing. Also check mating thickness and clearance so the 4" length provides the intended clamp-up without bottoming out.
Related Products & Accessories
- Browse Fasteners & Mounting - Find matching screws, nuts, washers, and related mounting hardware.
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.