often two pieces of threaded rod

7/16-14 x 1 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50)

3/4-10 x 3 3/4 A325 Type 1 Heavy Hex Bolt Hot Dipped Galvanized (75)

9/16-12 x 1 1/2 Socket Cap Screw Alloy

1/4-20 x 1 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (1400)

Simpson ETBS Wire Hole-Cleaning Brush - Standard (Hole Diam: 1 3/8 Useable Length: 5") 9/16-12 Hex Cap Screws 316 Stainless Steel often two pieces of threadedSimpson ETBS Wire Hole Cleaning Brush Standard is ideal for clearing dirt and debris from pipe and conduit openings. Its 1 3 8 hole diameter and 5 useable length makes it a versatile tool for cleaning and maintaining pipes and conduits.