Allied Titanium 0032349, (Pack of 10) 1/4-20 X 5/8 UNC Socket Head Titanium Machine Screw, Grade 2 (CP) 1/4-20 X 5/8 UNC Socket Head Allied Titanium Machine Screw TRUE TITANIUM(TM) - Stronger, Lighter and Corrosion Free Titanium is good for use in or near saltwater General Tolerance: +0/-0.010 inch Meets ASME B18.3; Grade 2 (CP) Titanium with Polished Finish