Hillman 372170 Wedge Bolt, 1/2 x 3

Highlights:

• Size: 1/2 x 3
• Use with wedge-bit for best performance
• Relief grooves for low installation torque provide a dust relief
• Double lead thread for easy. straight centering and fast advancing
• Reverse parabolic threads provide high load capacity
• High helix angle for fast installation
• Box/20