Bulk 1/2″-13 6-Lobe (Torx) Flat Head Floor-Board Screws — Type F Thread-Cutting, Black-Phosphate (1 ½″ & 2″) Length:150 Qty - 1/2-13 x 2" Fine Thread for Precision: UNF

Fine Thread for Precision: UNF threading provides increased holding strength for high-vibration applications

you can select the best bolt configuration to suit your specific project needs

Available in metric sizes M4 to M12 with coarse threads

1/4"-20 UNC Knurled Cup Point Socket Set Screws

Bulk 1/2″-13 6-Lobe (Torx) Flat Head Floor-Board Screws — Type F Thread-Cutting, Black-Phosphate (1 ½″ & 2″) Length:150 Qty - 1/2-13 x 2" Fine Thread for Precision: UNFk Monster Overview: For truck beds, structural steel decking, trailer floors and heavy timber to steel joints, choose 1 2 13 6 Lobe (Torx) Flat Head Floor Board Screws with a Type F fluted point taps mating threads in a pre drilled or punched holeno nut required; chips clear through the flute. A tough black phosphate conversion coat (RoHS compliant) adds corrosion protection and low glare, while a factory wax oil film keeps drive torque predictably