<div class="full-description"> <p><strong>Material</strong></p> <p><strong>Washer:</strong> CR 410 Stainless Steel heat treated to HRC 38-42.<br> <strong>Ball:</strong> Type 440-C Stainless Steel to HRC 58-65.<br> <strong>Ball Tolerance:</strong> ±0.0025 (Grade 100)<br> <strong>Ball Retainer:</strong> HS Nylon permitting continuous use up to 120°C.</p> <p><strong>Other Info.</strong></p> <p>Inch sizes available, P.O.A.<br> Also available in Carbon Steel P.O.A.</p> </div>