Bulk 5/16″-18 6-Lobe (Torx) Pan Head Floor-Board Screws — Type F Thread-Cutting, Black-Phosphate Length:300 Qty - 5/16-18 x 2-1/2" Thread Size: 7/16"-20 – UNF

Thread Size: 7/16"-20 – UNF (Fine) Thread

Thread Size: #2-56 UNC

3 / SAE J1237 Type 25

Feature Details Diameter / Thread 5/16-18 UNC Available Lengths Fully threaded — select length above Head / Drive 6-Lobe Flat – Torx® Star / Hexalobular Point Style Taptite-style trilobular thread-rolling Material Carbon Steel Finish Zinc Bake & Wax (RoHS) System of Measurement US / Inch Standards Meets ASME B18

Bulk 5/16″-18 6-Lobe (Torx) Pan Head Floor-Board Screws — Type F Thread-Cutting, Black-Phosphate Length:300 Qty - 5/16-18 x 2-1/2" Thread Size: 7/16"-20 – UNFMonster Overview: Designed for steel decking, trailer floors and heavy timber to steel joints, these 5 16 18 6 Lobe (Torx) Pan Head Floor Board Screws feature a Type F cutting point that taps its own threads in mild steel or dense hardwoodno nuts, no pre tapping. A low glare black phosphate conversion coat with light oil provides corrosion resistance and RoHS compliance, while a factory wax oil film keeps drive torque predictably low. Supplied in bulk