318pcs Heavy Duty Bolts and Nuts Kit, Flat Hex Head Cap Screws Bolts and Nuts and Flat & Spring Washers Assortment Kit, 1/4-20 5/16-18 3/8-16 Metric Nuts and Bolts Washers Set :
M10-1.25 x170 Metric Bolts Fine DIN 931 Hexagon Bolt [] - £16.00 : Stainless Automotive Fastenings
3/8" BSW x 3/4" - Hexagon Set Screw Grade R BS 1083 - Self Colour - Pack of 5 | Hex Set Screws
Socket Set Metric 19mm 3/8 and Bolt & Bit Sets 1/4 11mm 5.5 10 19 mm Deep M5.5X100mm - China 5/16, Hex Nut Driver | Made-in-China.com
Get to Know Metric Bolt Sizes - Insight Security
Are metric and standard bolts interchangeable? - Quora