Cap Screw, M6x20, Socket Head 

In your instruction manual, this part appears on the parts list as:

Item No	Models
123	LittleMachineShop.com 4100 HiTorque Mini Lathe - 7x12 LittleMachineShop.com 4200 HiTorque Mini Lathe - 7x12 LittleMachineShop.com 5100 HiTorque Mini Lathe - 7x16 LittleMachineshop.com 5200 HiTorque Mini Lathe - 7x16 Various SC2-US SIEG Mini Lathe LittleMachineShop.com 7300 HiTorque Mini Lathe - 7x16 LittleMachineShop.com 7350 HiTorque Mini Lathe - 7x16 Micro-Mark 84631 MicroLux Mini Lathe - 7x16
16	LittleMachineShop.com 7450 HiTorque Mini Lathe - 7x16
181	LittleMachineShop.com 4190 HiTorque Mini Mill
182	Micro-Mark 84631 MicroLux Mini Lathe - 7x16
186	LittleMachineShop.com 4100 HiTorque Mini Lathe - 7x12 LittleMachineShop.com 4200 HiTorque Mini Lathe - 7x12 LittleMachineShop.com 5100 HiTorque Mini Lathe - 7x16 LittleMachineshop.com 5200 HiTorque Mini Lathe - 7x16 Various SC2-US SIEG Mini Lathe LittleMachineShop.com 7300 HiTorque Mini Lathe - 7x16 LittleMachineShop.com 7350 HiTorque Mini Lathe - 7x16
189	LittleMachineShop.com 6450 HiTorque Mini Mill
43	Enco 110-0803 Enco Mini Lathe - 7x10 Harbor Freight 93212 Central Machinery Mini Lathe - 7x10 Harbor Freight 33684 Central Machinery Mini Lathe - 7x10 MSC 0192857 Enco Mini Lathe - 7x10 BusyBee CX704 Craftex Mini Lathe - 7x12 Grizzly G8688 Grizzly Mini Lathe - 7x12 Harbor Freight 93799 Central Machinery Mini Lathe - 7x12 Homier 03911 Speedway Mini Lathe - 7x12 Micro-Mark 82500 MicroLux Mini Lathe - 7x12 Northern Tool 49656 KLUTCH Mini Lathe - 7x12 Cummins 5278 Cummins Mini Lathe - 7x12 Tormach 30689 Tormach Lathe, Duality CNC Various C2-US SIEG Mini Lathe WEN 3455 WEN Mini Lathe - 7x12 Princess Auto 8507659 Powerfist Mini Lathe - 7x12 Travers Tools OT222300 OTMT Mini Lathe - 7x12 Eastwood 32497 Mini Lathe - 7x12 LittleMachineShop.com 1012 LittleMachineShop.com Mini Lathe - 7x12 LittleMachineShop.com 1014 LittleMachineShop.com Mini Lathe - 7x14 LittleMachineShop.com 4959 SIEG Mini Lathe - 7x14 (C3) Micro-Mark 82710 MicroLux Mini Lathe - 7x14 Various C3-US SIEG Mini Lathe - 7x14
5-37	LittleMachineShop.com 7600 HiTorque Bench Lathe - 9x20 LittleMachineShop.com 7650 HiTorque Bench Lathe - 9x20
62	BusyBee CX611 Craftex Small Mill Grizzly G0619 Grizzly Small Mill Various SX3 SIEG Small Mill Travers Tools OT2225SX3 OTMT Small Mill
70	LittleMachineShop.com 4660 HiTorque Micro Mill LittleMachineShop.com 4700 HiTorque Micro Mill
75	Grizzly G8689 Grizzly Mini Mill Micro-Mark 82573 MicroLux Mini Mill BusyBee CX605 Craftex Mini Mill Harbor Freight 44991 Central Machinery Mini Mill Northern Tool 49657 KLUTCH Mini Mill Homier 03947 Speedway Mini Mill Cummins 7877 Cummins Mini Mill Various X2-US-MT3 SIEG Mini Mill Various X2-US-R8 SIEG Mini Mill Bolton XJ-9510 Mini Mill Hare & Forbes HM-10 SIEG Mini Mill Princess Auto 8507667 Powerfist Mini Mill Travers Tools OT2213 OTMT Mini Mill Eastwood 32498 Mini Mill Penn Tool Co XJ-9510-1 Precise Mini Mill Clarke CMD300 Mini Mill King Canada KC-15VS King Industrial Mini Mill Various X2L-US SIEG Mini Mill WEN 33013 WEN Mini Mill
92	Harbor Freight 47158 Central Machinery Micro Mill Clarke CMD10 Metalworker Micro Mill Various X1-US SIEG Micro Mill
A068	LittleMachineShop.com 6750 HiTorque Large Bench Mill LittleMachineShop.com 6770 HiTorque Large Bench Mill
A98	LittleMachineShop.com 5500 HiTorque Bench Mill Various SX2.7-US SIEG Bench Mill LittleMachineShop.com 5520 HiTorque Bench Mill LittleMachineShop.com 6500 HiTorque Bench Mill LittleMachineShop.com 5550 HiTorque Bench Mill Various SX2.7L-US SIEG Bench Mill LittleMachineShop.com 6550 HiTorque Bench Mill LittleMachineShop.com 6570 HiTorque Bench Mill
B23	LittleMachineShop.com 6750 HiTorque Large Bench Mill LittleMachineShop.com 6770 HiTorque Large Bench Mill
D45	LittleMachineShop.com 6770 HiTorque Large Bench Mill
G02	LittleMachineShop.com 6750 HiTorque Large Bench Mill LittleMachineShop.com 6770 HiTorque Large Bench Mill

Click your model to see the complete parts list.