Description
1/4-20 X 1 1/4 SS Phil Rd MS | Boat Supply Store
This 18-8 stainless steel machine screw is engineered for marine environments, resisting galvanic corrosion and saltwater degradation. Its 1/4-20 thread size and 1 1/4 inch length provide robust fastening for deck hardware, hatches, or console components on a center console boat operating in the Gulf Coast bays. The Phillips head drive ensures straightforward installation with standard tools.
Key Features
- Corrosion Resistant: 18-8 stainless steel construction for saltwater environments.
- Secure Fastening: 1/4-20 thread pitch ensures a strong, reliable connection.
- Optimal Length: 1 1/4 inch shaft penetrates adequately for most marine applications.
- Easy Installation: Phillips head drive accommodates standard screwdrivers.
- Durable Material: Resists rust and degradation from marine exposure.
- Versatile Sizing: Suitable for a wide range of hardware and component mounting.
- Reliable Performance: Engineered to withstand vessel vibration and stress.
- Long-Lasting: Maintains integrity through demanding operational conditions.
Specifications
| Product Specifications | |
|---|---|
| Thread Size | 1/4-20 |
| Length | 1 1/4 inches |
| Head Style | Phillips |
| Material | 18-8 Stainless Steel |
| Drive Type | Phillips |
Who This Is For
Boaters requiring durable, corrosion-resistant fasteners for critical marine applications. Ideal for replacing worn or corroded hardware on any vessel operating in brackish or saltwater conditions.
How It Compares
| Feature | 1/4-20 X 1 1/4 SS Phil Rd MS | Other Brand Marine Screws |
|---|---|---|
| Thread Size | 1/4-20 | 1/4-20 |
| Length | 1 1/4 inches | 1 1/4 inches |
| Head Style | Phillips | Phillips |
| Material | 18-8 Stainless Steel | 304 Stainless Steel |
Common Concerns Answered
Will these screws rust in a marine environment?
These fasteners are constructed from 18-8 stainless steel, specifically chosen for its superior resistance to corrosion and degradation from saltwater exposure, significantly reducing the risk of rust.
Are they strong enough for deck hardware?
With a 1/4-20 thread size and robust 18-8 stainless steel construction, these screws provide the necessary tensile strength and durability for securing common deck hardware components.
Is the Phillips head drive compatible with standard tools?
Yes, the Phillips head drive is a standard design that accepts common Phillips head screwdrivers, ensuring ease of installation without specialized tools.
Frequently Asked Questions
What is the specific thread pitch for this machine screw?
The thread pitch for this machine screw is 20 threads per inch (TPI), denoted by the '20' in '1/4-20'.
Can this screw be used for through-bolting applications?
Yes, with a length of 1 1/4 inches, it is suitable for through-bolting applications where the combined thickness of the materials being joined does not exceed its length.
What is the benefit of using 18-8 stainless steel over other stainless steel grades?
18-8 stainless steel offers enhanced corrosion resistance, particularly against chlorides found in saltwater, compared to lower grades like 304 stainless steel in marine applications.
How do I determine if 1 1/4 inches is the correct length?
The correct length is determined by the combined thickness of the materials you are fastening. The screw should pass through both components and allow for a nut or thread engagement of at least 2-3 full threads.
What kind of load can a 1/4-20 screw handle?
While specific tensile strength varies, a 1/4-20 18-8 stainless steel machine screw is generally rated for substantial shear and tensile loads suitable for most non-structural marine hardware.
