Bulk 3/8″-16 6-Lobe (Torx) Flat Head Floor-Board Screws — Type F Thread-Cutting, Black-Phosphate 440192 Thread Size: #1-72 UNF (Fine

Thread Size: #1-72 UNF (Fine Thread)

Photos showing locking nut for screw examples

each screw is chemically passivated to remove free iron and topped with a factory-applied dry-film wax that lowers driving torque by up to 30 %

Finish: Hot-Dipped Galvanized (HDG) for superior corrosion resistance

Bulk 1-1/2"-6 Grade B Heavy Hex Bolts (A307

Bulk 3/8″-16 6-Lobe (Torx) Flat Head Floor-Board Screws — Type F Thread-Cutting, Black-Phosphate 440192 Thread Size: #1-72 UNF (FineMonster Overview: Built for truck beds, heavy trailer floors, structural steel decking and laminated timbers, these 3 8 16 6 Lobe (Torx) Flat Head Floor Board Screws incorporate a Type F fluted cutting point that taps its own internal threads in mild steel or dense hardwood eliminating nuts, pre tapping and chip cleanup. A low glare black phosphate conversion coat meets RoHS requirements and partners with a factory wax oil film for predictably low