A hex cap screw is a cap screw with a hexagonal head, designed to be driven by a wrench.
An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head.
Hex cap screws are fully threaded in shorter lengths (usually around up to 1-1/4 inch, depending upon the bolt diameter), and partially threaded with a shoulder beneath the fastener hex head in longer lengths.
Grade 5 Zinc plated steel hex cap screws have a layer of corrosion resistance
Grade 5 Zinc hex cap screws are distinguished by three hash marks on top of the bolt's head
Hex Tap Bolt 18-8 Stainless Steel - 1/4"-20 x 1-1/2" Qty-100
SAR 162
Torx w/Pin Tamper Proof Security Button Head Sheet Metal Screws 18-8 Stainless Steel T-25 - #10 x 1-1/2-25 Pieces
SAR 73
Knurled Thumb Nut Brass - 1/4-20 (5/8 Dia x 3/8 Thick) Qty-25
SAR 160
Beveled Square Washers in Plain Malleable Iron - 3/8" - 1-1/2" (25, 3/4")
SAR 173
