M16 x 2.00 Coarse Thread DIN 980 Class 8 Automation (Stover All Metal) Locknut Medium Carbon Steel Zinc Plated and Wax Pk 125: Amazon.com: Industrial & Scientific
1/2"-13 x 1" Coarse Thread Socket Low Head Cap Screw Alloy Steel Black Oxide Pk 125: Amazon.com: Industrial & Scientific
1/2"-13 x 1 3/4" (FT) Coarse Thread Socket Flat Head Cap Screw Stainless Steel 18-8 Pk 125: Amazon.com: Industrial & Scientific