5/16"-18 x 3 T-40 Flat Head Self Tapping Trailer Deck Screws, 10 Pack

★★★★★ 4.6 119 reviews

US$5.20
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US$5.20
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Product details

Management number 250222872 Release Date 2026/09/17 List Price US$5.20 Model Number 250222872
Category
  • TYPE F SELF-TAPPING POINT - cuts machine threads directly into steel crossmembers up to 1/4" thick; drill a pilot hole, drive with an impact, no nut and no pre-tapping
  • FLUSH COUNTERSUNK FLAT HEAD - nibs under the head cut a clean countersink in hardwood and softwood decking, so nothing catches a boot, a strap or a skid
  • STAR DRIVE, NO CAM-OUT - deep six-lobe recess takes full impact-driver torque without stripping; far more re-drives than any Phillips deck screw survives
  • REMOVABLE, SERVICEABLE JOINT - machine threads in the steel survive board replacement; back the screw out, drop a new board, drive the same screw home
  • SPECS (5/16"-18 x 3") - T-40 star drive, 17/64" pilot in steel; suits 2" nominal decking over steel frames; steel Type F thread cutting screws, made for trailer deck and floorboard replacement
ASIN B07LBJWS64
Brand Newport Fasteners
Color Black
Set Name 10-Piece 5/16-18 x 3" Self-Tapping Trailer Deck Screws Set
Head Type Flat
Size Name 5/16-18 x 3 inch
Metal Type Alloy Steel
Unit Count 10 Count
Part Number 688100-10
Thread Size 5/16"-18
Thread Type Unc
Drive System Star, Torx
Finish Types Black Phosphate and Oil Coated
Manufacturer Newport Fasteners
Thread Class 2B
Thread Style Right Hand
Fastener Size 5/16-18 x 3 inch
Fastener Type Machine Screw
Item Diameter 0.31 inches
Material Type Heat-Treated
Item Highlight Star drive (six lobe) floorboard screws fasten wood decking to steel trailer and truck bed frames. Type F, phosphate.
Exterior Finish Black Phosphate,Steel
Number Of Items 10
Thread Coverage Fully Threaded
Number of Pieces 10
Outside Diameter 0.31 inches
Screw Head Style Flat
Screw Point Style Type F Point
Set Screw Thread Type Unified National Coarse (UNC)

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