Stainless steel locking pins provide secure, quick-release connections for marine, outdoor, and industrial environments. This guide highlights top VTurboWay and Fields Outdoor Supplies pins crafted from marine-grade 316 stainless steel, offering excellent corrosion resistance and durability in saltwater and challenging conditions. Each product features a specific length, diameter, and packing option to fit a range of quick-release needs. The selections below balance size, strength, and value to help you choose the best pin for your project.
| Product | Size (L x D) | Material | |
|---|---|---|---|
| 2 Pack Safety Coupler Pin | 1.97″ x 1/4″ | Marine Grade 316 SS | 2 |
| 2 Pcs Extended PTO Pin | 2.76″ x 1/4″ | Marine Grade 316 SS | 2 |
| 4 Pack Safety Coupler Pin | 1.97″ x 1/4″ | Marine Grade 316 SS | 4 |
| 2 Pcs Tiny Safety Coupler Pin | 1.97″ x 3/16″ | Marine Grade 316 SS | 2 |
| 2 Pack Full 316 SS Square PTO Pin | 2.76″ x 5/16″ | Marine Grade 316 SS | 2 |
2 Pack Safety Coupler Pin 1/4 X 50mm (6.3mm)
This pin is fully crafted from marine-grade 316 stainless steel, delivering strong corrosion resistance in saltwater environments. It measures 1/4″ (6.3mm) in diameter and 50mm (1.97″) in length, making it suitable for quick-release applications in most outdoor and marine setups. The set provides double availability for redundancy in critical connections.
2 Pcs Extended PTO Pin 70mm x 1/4″
This extended version uses marine-grade 316 stainless steel and offers increased reach for deeper assemblies. With a length of 70mm and a 1/4″ diameter, it remains compatible with quick-release configurations while delivering enhanced leverage and reach for larger equipment or assemblies exposed to outdoor elements.
4 Pack Safety Coupler Pin 1/4 X 50mm
Packaged in a four-count, these locking pins are built from marine-grade 316 stainless steel for corrosion resistance in saltwater and outdoor environments. The 50mm length and 6.3mm diameter are ideal for quick-release connections where space is ample and durability is essential for frequent use.
2 Pcs Tiny Safety Coupler Pin 3/16 X 50mm
Designed for smaller applications, this set uses 316 stainless steel to resist corrosion while the 3/16″ (4.8mm) diameter and 50mm length provide a compact solution for tight or precision-fit connections. It’s suitable for quick-release tasks in outdoor and marine contexts where space is limited.
2 Pack Full 316 SS Square PTO Pin 70mm
This variant features a square PTO pin profile in marine-grade 316 stainless steel, with a 70mm length and 5/16″ (8mm) diameter. The square shaft design helps resist rotation in certain assemblies and supports robust, long-term outdoor use in harsh conditions.
2 Pcs Extended Square Safety Coupler Pin 70mm
Extending the square PTO design, this pin offers extended reach (70mm) while maintaining 1/4″ diameter. It’s built from marine-grade 316 stainless steel to resist seawater corrosion and weathering, supporting frequent use in outdoor environments that require secure, quick-release connections.
Stainless Steel Locking Pin With Spring Clip – 3/16″ x 2″
This one-pack pin features a spring clip for quick fastening and removal without tools. At 3/16″ diameter and 2″ length, it provides a compact, rust-resistant locking solution suitable for small equipment, shop, or marine use where speed and ease of use are priorities.
2 Pack Safety Coupler Pin 0.197″ x 50mm
This lighter option uses a 0.197″ (5mm) diameter and 50mm length, crafted from marine-grade 316 stainless steel for rust resistance. The compact sizing is ideal for tight fittings where a secure, quick-release connection is necessary but space is constrained.
Buying Guide: Key Purchase Considerations
When selecting stainless steel locking pins, consider the following factors to ensure you get the best fit and performance for your application.
- Material and corrosion resistance: Marine-grade 316 stainless steel offers superior resistance to seawater, salt, and humidity. For most outdoor and marine uses, 316 is the standard choice.
- Diameter and length: Match the pin’s diameter to the hole and the overall length to the assembly depth. Common diameters include 1/4″ (6.3mm) and 3/16″ (4.8mm); lengths range from 50mm to 70mm in these products.
- Locking mechanism: Pin types include simple locking, spring-clip action, and square PTO designs. Choose based on ease of use, required security level, and whether tools are available on site.
- Pack size and redundancy: Higher pack counts offer better value and backup options for critical systems. Consider spare pins for maintenance cycles or backup assemblies.
- Application environment: For marine or outdoor environments, prioritize pins with robust corrosion resistance and longer lengths if reach is a factor.
- Compatibility: Verify that the pin type matches the receiving hardware, such as holes, slots, or custom fittings, to ensure reliable engagement and disengagement.
- Maintenance: Regular inspection for signs of wear, bending, or corrosion helps extend service life. Clean pins before reinstalling in sensitive equipment to prevent debris jamming.
Selected products provide a range of lengths, diameters, and pack configurations to fit common quick-release needs in marine, outdoor, and industrial settings. The emphasis on marine-grade 316 stainless steel ensures durability and resistance to saltwater exposure, helping maintain performance over time.