PIGD ring tongue terminals for bus bars and studs
For blue sea bus bars
5-way bus bars with #10-32 studs and #8-32 screws

10- and 20-way bus bars with #1/4" stud and #8-32 screws

MIL-W 22759/16 Tefzel maximum insulation diameters
- 10 AWG - 3.61mm
- 12 AWG - 2.97mm
- 14 AWG - 2.41mm
- 16 AWG - 2.06mm
- 18 AWG - 1.85mm
- 20 AWG - 1.57mm
- 22 AWG - 1.37mm
TE connectivity PIDG ring terminals for smaller wire sizes and screws, compatible with 58433-3 crimper

#8-32 screw options
22-16 AWG

Maximum MIL-W 22759/16 insulation diameter for 16AWG is 2.06mm so 320554 or 320551 are sufficient and preferred, alternatively 31886 or 31890. In fact the 3.18mm max insulation diameter for these types is good for 12 AWG wire (2.97mm max diameter). The 320551 is preferred over the 320554 as the metal part is wider
1-320551-3 | TE Connectivity, PIDG Insulated Ring Terminal, M4 Stud Size 20 AWG 20 AWG Wire Size, Red | RS - 100 units
TE connectivity PIDG ring terminals for larger wire sizes and studs, compatible with 58433-3 crimper

12-10 AWG
Maximum MIL-W 22759/16 insulation diameter for 12AWG is 2.97mm and 10 AWG is 3.61mm, far below the limits imposed by the PIGD terminals
#10-32 stud options, #1/4" stud options, and 8mm stud options (for grounding stud on firewall)
#10-32 studs can preferably use 324918, 32883 or 36161 due to smaller insulation diameter limit, alternatively 131071 or 35109
The 36161, 131071 or 35109 are preferred due to having more metal
The 36161 is preferred overall, but his is all I can see on the RS webpage
1/4" (M6) studs can preferably use 320569 due to smaller insulation diameter limit, alternatively 35110
This is what I can get
5/16" (M8) studs can preferably use 320576 due to smaller insulation diameter limit, alternatively 35111 or 160298. 320576 or 35111 are preferred due to having more metal
EarthX batteries, or the optional terminal adapters have M6 hex head screws. There will be a need for ~10AWG wire to connect to the battery for the avionics
Placement of firewall electrics - We Build Planes
Canadian Shunt LA-100-100 current shunt has 1/4" studs
Bussmann LMI stackable fuses have M5 studs
This post is from Adam Dickson