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Spiral Type: Left Hand Spiral
or a table-mounted machine
Witness Hole: Each coupler nut is designed with a witness hole
For projects that fall outside the ideal thickness
covering a broad range of standard HVAC applications
Simpson Strong-Tie RFB#6X6-55 RFB 3/4 in. x 6 in. Zinc-Plated Retrofit Bolt, Grade 55 Dyno Kwick Pick Store Spiral Type: Left Hand SpiralSimpson Strong Tie RFB#6X6 55 The Simpson Strong Tie RFB retrofit bolt is a precut threaded rod, supplied with nut and washer, to use with anchoring adhesives to anchor into existing concrete and masonry. Each end of the threaded rod is stamped with rod length in inches and color coded indicating the grade or type of steel for quick and easy identification post installation. For 1 2 in. diameters and larger, the distinctive No Equal symbol is also