5/16-18 X 1/2" Thumb Screws | Shoulder Head | Knurled Drive | Full Thread | Steel Zinc Plated (1000 / Pkg.) Flange Head style: Slotted pan head

Head style: Slotted pan head for a broad driving surface

12-piece package provides ready-to-use set for common drilling tasks in shop or field

Shank: Reduced 1/2"

making them a popular choice for equipment

these slotted flat-head machine screws deliver excellent corrosion resistance and a flush

5/16-18 X 1/2" Thumb Screws | Shoulder Head | Knurled Drive | Full Thread | Steel Zinc Plated (1000 / Pkg.) Flange Head style: Slotted pan headSpecs Product type: Thumb screws Thread size: 5 16 18 Shank diameter: 5 16 inch Length: 1 2 inch Head style: Shoulder Drive type: Knurled Thread type: Full thread Material: Steel Finish: Zinc plated Packaging: 1000 per package Features Knurled drive enables fingertip tightening and removal without tools Shoulder head provides stable seating and precise locating against mating surfaces Full thread along the shaft maximizes engagement and clamping range