1/4 inch Hex Head Bolts have a 7/16 inch hex head. The fastener length is measured under the head. The thread length is typically 7/8, but may vary. 18-8 Stainless Steel for general construction, industrial and marine applications.
8 x 1/2 Hex Head Tapping/Sheet Metal Screw 18-8 Stainless Steel (100 count)
Hillman 5/16 In. x 3/4 In. Grade 18-8 Stainless Steel Hex Head Cap Screw (100 Ct.) - Parker's Building Supply
1-1/4-7 x 2-1/2 Hex Head Cap Bolts 18-8 / 304 Stainless-Marshfasteners.com
1/2-13 x 4-1/4 18-8 SS Hex Cap Screws
1/2-13 x 2 Stainless Steel Hex Head Tap Bolt 18-8
Value Collection - Hex Head Cap Screw: 1/4-28 x 1″, Grade 18-8 Stainless Steel - 67577882 - MSC Industrial Supply
Tacoma Screw Products 3/8-16 x 2-1/2 Carriage Bolts — 18-8 Stainless Steel, 50/PKG
1/4 Stainless Steel Hex Head Bolts
1-14 x 2 1/4 (FT) UNS Full Thread Hex Cap Screw (Bolt) Stainless Steel 18-8
1/4'' x 2-1/2'' Hex Head Lag Bolts, 18-8 Stainless Steel