1061181 | SC042C-038-C-SK-C (Pack of 50) --- Socket Cap Screws - 8-32 UNC - 4.17mm - 38.1 mm - High Tensile Steel / Black Oxide Alloy Steel Screw 1536.00x6.00x512.00 3/8x5/8x1/32 inch Washer - 9

3/8x5/8x1/32 inch Washer - 9

44 tooth - 88x6 mm Timing 2

Length: 554

Misumi® C-HTBN615S5M-150

257 tooth - 2056x25 mm Timing 8

1061181 | SC042C-038-C-SK-C (Pack of 50) --- Socket Cap Screws - 8-32 UNC - 4.17mm - 38.1 mm - High Tensile Steel / Black Oxide Alloy Steel Screw 1536.00x6.00x512.00 3/8x5/8x1/32 inch Washer - 98 32 UNC (4. 17mm) 38. 1 mm High Tensile Steel Black Oxide Socket Cap Screws High Tensile Steel Black Oxide Sold Per 50: Base Category: Screws Socket Cap Top Level Category: Screws Socket Cap Alloy Steel Black Oxide Product Details Thread Size (C): 8 32 UNC (4. 17mm) High Tensile Steel Black Oxide Thread Size (C): 8 32 UNC (4. 17mm) Thread Length (L): 38. 1mm (38. 1mm is 1. 5 in.) Material: High Tensile Steel Black Oxide Head Length (B Max.): 4. 2mm