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" you can select the best

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

Available in metric sizes M4 to M12 with coarse threads

Manufactured to meet DIN 439B standards

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

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" you can select the bestk 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