Flanged Hexagon Head Bolts (DIN6921). Manufactured from A2 stainless steel for improved corrosion resistance. Stainless Steel Grade A2/70 (304). All screws are fully threaded.
eBay
M8 / 8mm HEX HEXAGON HEAD WOOD SCREW COACH SCREWS BOLTS ZINC PLATED. Anti-corrosion protection: zinc electroplated coating. Galvanised Steel. You will get answer in 30 minutes. If You don't live in Great Britain.
eBay
M6, M8 & M10 Coach Screws. Hexagon head coach screws. Also known as lag bolts. Bright zinc plated steel. Screw lengths do not include the head. Spanner size; 10mm. Spanner size; 13mm. Spanner size; 17mm.
eBay
Double Thread Female to Female Bolt Screw Reducer Fitting Adapter. These female thread adapter are useful where thread size of screw needs to be reduced or increased. Thread pitch 0.5mm(M3 )/0.7mm(M4 ) / 0.8mm(M5 ) / 1mm(M6 ) / 1.25mm(M8 )/1.5mm(M10 ) / 1.75mm(M12 )/ 2mm(M14 ) / 2mm(M16 )/2.5mm（M20 ）.
eBay
M8 Button Head Screws (ISO7380). Manufactured from A2 stainless steel for improved corrosion resistance. Stainless Steel Grade A2/70 (304). All screws are fully threaded. Screw lengths do not include the head.
eBay
Stainless Steel Flanged Hexagon Head Bolts (DIN6921). Manufactured from A2 stainless steel for improved corrosion resistance. Stainless Steel Grade A2/70 (304). Stainless Steel Nyloc Nuts (DIN985). All screws are fully threaded.
eBay
Cup Point Set Screws are integrally designed to withhold in place with pressure from the tip. Their distinctive cup point tip enables the set screw to prolong a feasible state when clamping in contrast to the other available set screws.
eBay
M8 / 8mm SQUARE CARRIAGE BOLT COACH SCREW. - M8 Square carriage bolt Zinc. - M8 Hexagonal Zinc Nut. - M8 Flat Zinc Washer. Carriage bolts are extensively used in security fixings, where the bolt must only be removable from one side.
eBay