106 Piece Assorted Stainless Steel Hex Cap Bolt Set manufactured from stainless steel grade 201 for increased durability and protection from rust. Specially designed to be tightened with hex keys. Includes handy carrying case for quick and convenient storage. Stainless steel Grade 201. Specially designed to be tightened with hex keys/Sockets. Includes handy carrying case for quick and convenient storage. Contains 106 assorted stainless steel Hex Bolts in Sizes: 4mm x 12mm (x25), 5mm x 12mm (x25), 5mm x 25mm (x20), 6mm x 12mm (x10), 6mm x 25mm (x10), 8mm x 25mm (x5), 8mm x 40mm (x5), 10mm x 25mm (x3) & 10mm x 40mm (x3). Brand: Toolzone. .