Assortment Kit #629 (109Pcs.) 1/2"-13 Grade 5 Hex Cap Screws, Grade 5 Hex & Nylon Nuts, Flat & Lock Washers - Zinc Plated BoltsandNuts.com Part Number: BIT-DWDCO1-3/16

Part Number: BIT-DWDCO1-3/16

Part Number D/A3F63/64

Tap Drill Size 1-11/16"

Part Number: EZ-303-10

they have a slight wedge shape that grips both sides of the slot

Assortment Kit #629 (109Pcs.) 1/2"-13 Grade 5 Hex Cap Screws, Grade 5 Hex & Nylon Nuts, Flat & Lock Washers - Zinc Plated BoltsandNuts.com Part Number: BIT-DWDCO1-3/16Part Number: Assortment Kit #629109 Pieces 1 2" 13 Grade 5 Hex Cap Screws, Grade 5 Hex & Nylon Nuts, Flat & Lock Washers Zinc Plated Bolt Information: Grade 5 Hex Cap Screws Zinc Plated Nut Information: Grade 5 Hex Nuts & Nylon Insert Lock Nuts Zinc Plated Washers Information: Flat Washers Zinc Plated Lock Washers Zinc Plated Container Information: Plastic Individual Small Scoop Box, 10 13 16" Width x 1 3 4" Height x 6 3 4" Depth, 12 Hole Compartment