References

This is some reference/lookup charts I use throughout the build.

Squawk issues

Designation	USA Size (in)	EU Size (mm)	Total torque (in.lb)	Thread Size	Wrench size (in)	AC 43.13 torque range	TAF maintenance manual	Measured friction drag torque
AN3	3/16	4.8	29	10-32	3/8	20-25	18-24	5
AN4	1/4	6.35	76	1/4-28	7/16	50-70	51-80	7
AN5	5/16	7.94	150	5/16-24	1/2	100-140	12	12
AN6	3/8	9.53	159-189	3/8-24	9/16	160-190	159-189

ITEM	TORQUE VALUE (Nm)	TORQUE VALUE (ft.lb)	NOTES
Wing mounting bolts (front) (AN7).	55	40.57
Wing mounting bolts (rear) (AN5).	18	13.28
Main spar bolts (AN4).	7	5.16
Main landing gear mounting bolts (M10).	25	18.44
Propeller mounting bolts spacer to propeller hub (M8).	20	14.75	Airmaster AP430CTF-WWR72B propeller
Propeller mounting bolts spacer to engine flange (M8).	24	17.70
Engine mounting bolts (suspension frame to engine mount) (M10).	38	28.023	NOTE: 38 Nm for oiled thread. 30 Nm for greased thread.
Engine mount mounting bolts (securing engine mount to engine firewall) (AN5).	16	11.80
Nose wheel bolts	11.3	8.33
Safety belt bolts (3 points)	20	14.75
Door bolts (hinge to canopy)	25	18.44
Fuel pump banjo bolts (M12)	20.3	15
Fuel pump banjo bolts (M14)	25.8	19
Master Relay mounting bolts (1/4-20)	6.2	4.58 (55 in-lb)
GTP59 OAT probe	11.3	8.33 (100 in-lb)
Rudder middle/top bolts (AN4)	6.2	4.58 (55 in-lb)	Calculated for extended torque arm
Regulator A grounding terminal (M4)	1.2	0.92 (11 in-lb)

Reference: KAI introduction chapter

Rivet type	Diameter	Drill bit hole size
Dome head and Countersunk rivet	2.4 mm (3/32”)	2.4 mm
Dome head and Countersunk rivet	3.2 mm (1/8”)	3.3 mm
Dome head and Countersunk rivet	4.0 mm (5/32”)	4.1 mm
Dome head and Countersunk rivet	4.8 mm (3/16”)	4.9 mm

Gauge	Crimper Size
AWG2	35MM
AWG4	25MM

Loctite 222
- Inspection panel screws, elevator trim motor installation screws.
- Propeller extension (bolts securing propeller hub / assembly to the propeller extension).
- VHF antenna retaining screws.
- Instrument panel retaining screws.
- Navigation light retaining screws.
- Strobe light retaining screws.
- Fuselage fairings.
- Fuel selector valve retaining screws.
Loctite 243
- Autopilot aileron and elevator servo mounting screws.
- Propeller extension (bolts securing propeller extension to engine flange).
- Bolt securing main wheel fairing to main axle spacer.
Loctite 557
- Fuel hose and oil pipe fitting threads.
- Brake line fittings.

On my harness, CAN bus always use white as High, and White/Blue as Low.