Conical shape exerts a constant spring force to keep bolts from coming loose. 316 stainless steel for greater corrosion resistance.

• 316 stainless steel
• Bolt hole fits 1/2” or 12 mm bolts
• 4 mm (0.15”) thick
• Strength: 25 kN (5620 lbf)
• EN 959 compliant
• Not for use in high corrosion marine environments