5/8"-11 x 5-1/2" (USS) GRADE-8 FLANGE BOLT, PHOSPHATE & OIL FINISH, (6-pack)

High Strength Flange Bolt:

• Use Two-Piece (Screw & Nut) System Rather Than a Four-Piece System (One Screw, One Nut, Two Washers).
• Offers Increased Margin of Safety Between Desired Clamping Load And Ultimate Strength of Assembly.
• A 30% Increase in Bearing support area Minimizes Brinelling.
• 150,000 Psi.
• Phosphate And Oil Finish.
• Grade 8 Equivalent.
• Product May Be Fully or Partially threaded. Subject to Manufacturer Availability