The set screws are manufactured from A2 Stainless Steel (304),The thread diameter #4. Thread Count (TPI): 40,full thread.All the screws/nuts/washers
kidsnado 4-40 x 1/8 Socket Set Screws Cup Point Stainless Steel 10 Pack with .050 Hex Key Wrench (1/8 Length) : : Tools & Home Improvement
BAIRONG 25pcs 4-40 x 1/4 Inch Stainless Steel Allen Head Hex
Machine Screw Assortment Kit 4-40 Button Head Socket Cap Screws Bolts Nuts Assortment Kit Stainless Steel UNC Thread Hexagon Machine Screws, Fully Machine Thread - 230Pcs : Industrial & Scientific
4-40 Stainless Steel Socket Set Screws
4-40 UNC x 1/4 inch Socket Countersunk Screws (ANSI B18.3) - A2 Stainless Steel: Accu.co.uk: Precision Screws
4-40 x 1/4 inch UNC Cap Head Screws (ANSI B18.3) - 18-8 / 304 Stainless Steel: Accu.co.uk: Precision Screws
4-40 UNC Flat Point Set Screws Hex Socket Grub Screws Pack of 100-Pieces (#4-40 x 1/4) : : Industrial & Scientific
Everbilt #6-32 x 3/16 in. Stainless-Steel Socket Set Screws (2-Piece) 811928 - The Home Depot