The Countersunk Mega-Coupler has a flat head bolt and solid wing nut tabs that are stronger than regular steel wing nuts.

• Fastens from 1-1/4" to 1-1/2" pipe or up to 2" OD truss tube
• Includes 1/2-13 × 1-1/2" flat head bolt with Nylock nut and 1" Belleville washer
• Made in USA