120 Pack 3/8" PEX Cinch Clamps - 304 Stainless Steel Single Ear Hose Clamps - Fits 3/8-inch Nominal PEX Pipe (1/2" / 12.7mm Actual OD) - ASTM F2098 Standard

[Fits 3/8" Nominal PEX Only] – Specifically designed for 3/8-inch PEX tubing (which has an actual 1/2" / 12.7mm Outside Diameter). STOP: Do not buy for standard 1/2" PEX pipe (5/8" OD)—these will be too small. Crafted from premium 304 stainless steel that cinches securely without breaking, ensuring a permanent 100% leak-proof seal for your plumbing or automotive projects.

[Universal Tool Compatibility] – Our precision-engineered clamps are designed to work seamlessly with all standard PEX Cinch Tools (Clamp Tools) that meet ASTM F2098 standards. The user-friendly interlocking structure and secure ear design help deliver a tight, lasting 360-degree seal in just seconds. Note: A standard PEX Cinch/Clamp Tool is required for a professional-grade, leak-proof installation (not for use with copper crimp ring tools).

[Marine-Grade 304 Stainless Steel] – Manufactured from premium 304-grade stainless steel, our 0.50" (12.7mm) inner diameter clamps deliver exceptional corrosion resistance and structural integrity even in harsh environments. Designed to maintain permanent, leak-proof seals across prolonged service cycles, these high-performance rings ensure reliable operation in specialized residential plumbing (3/8" PEX), automotive fluid lines, and industrial systems where long-term durability is non-negotiable.

[Advanced 360° Radial Compression] – Engineered with a precision interlocking structure, our clamps create consistent, uniform compression around the entire circumference of the tubing. This innovative design ensures a leak-free connection for 1/2" OD pipes even under dynamic pressure and temperature fluctuations. The self-locking ear mechanism maintains calibrated tension over time, delivering professional-grade confidence in every permanent 3/8" PEX or automotive installation.

[Professional Value for Precision Sizing] – Achieve industrial-grade reliability without the premium cost. These 120-pack cinch rings offer an optimal balance of quality and affordability for projects requiring a 1/2" Actual OD (12.7mm) fit. Ideal for diverse applications—from 3/8" PEX kitchen and bathroom lines to irrigation systems and automotive fluid projects—they deliver lasting value and dependable, leak-proof results across every specialized installation.

Luckwell Professional 1/2" OD PEX Cinch Clamps – 120-Pack 304 Stainless Steel, Precision-Sized for 1/2" Actual Outside Diameter Tubing Product Highlights ✔️ Value-Sized Bundle – 120 premium clamps for large-scale plumbing and automotive projects. ✔️ 304 Stainless Steel – Marine-grade corrosion resistance and high structural integrity. ✔️ Precision Engineering – Verified 0.50" (12.7mm) inner diameter for a snug, professional fit. ✔️ Effortless Installation – Compatible with standard PEX cinch tools; no complex steps required. ✔️ Specific Fit Design – Optimized for 3/8" Nominal PEX (which has a 1/2" Actual Outside Diameter). ✔️ Advanced Interlock Seal – Maintains constant 360° radial compression to prevent leaks. Reliable Performance for Precision Projects Luckwell’s heavy-duty cinch rings are engineered to deliver leak-free, long-term sealing where exact measurements matter. These clamps provide professional-grade performance in residential plumbing, irrigation, and automotive fluid systems, ensuring a permanent seal without the premium price tag. Why Professionals & DIYers Choose Luckwell - Verified Dimensions – Specifically sized for pipes with an Actual 1/2-inch (12.7mm) Outer Diameter. Marine-Grade Material – High-performance 304 stainless steel resists rust in damp or outdoor environments. Interlocking Security – The patented interlocking mechanism ensures uniform pressure that won't loosen over time. Versatile Applications – Ideal for custom plumbing, beverage lines, and automotive hose repairs. Unbeatable Value – Get 120 industrial-strength clamps at a fraction of hardware store costs. Included in This 120-Pack ・120 × 1/2-inch (12.7mm ID) single ear cinch clamps. ・Fits: 3/8" Nominal PEX tubing (Actual 1/2" OD). ・Does NOT Fit: Standard 1/2" Nominal PEX (which requires 5/8" OD clamps). Technical Specifications - Material: 304 Stainless Steel Actual Inner Diameter: 0.50 Inch (12.7mm) - Pipe Compatibility: Fits pipes with 1/2" Actual Outside Diameter - Type: Single Ear Cinch Clamp (ASTM F2098 Style) Working Pressure: Up to 150 PSI Temperature Range: -40°F to 250°F Perfect For ✅ 3/8" PEX Tubing Installations ✅ Automotive & Marine Fuel/Fluid Lines ✅ Irrigation & Beverage Dispensing Systems ✅ Home Maintenance & Repair Kits ✅ Specialized Industrial Piping Built to Last. Precision to Perform. With Luckwell, you avoid the "one-size-fits-all" frustration. We provide the exact dimensions you need for a secure, confident connection every time. Please measure your pipe's outside diameter to ensure a 1/2" (12.7mm) fit.