ReCalc

Hole Sizes

Hole Size

Green bolt sizes are the largest bolt that will fit in the input hole size. Green hole sizes are the closest hole sizes to the input hole size. Yellow are the next 3 closest.

Imperial
Size	Tapped	Close	Free
1/4-20	0.201 in	0.257 in	0.266 in
#12	-	0.221 in	0.228 in
#10-32	0.159 in	0.196 in	0.201 in
#8-32	0.136 in	0.17 in	0.177 in
#6-32	0.107 in	0.144 in	0.15 in
#5-40	0.102 in	0.129 in	0.136 in
#4-40	0.089 in	0.116 in	0.129 in
#3	-	0.104 in	0.11 in
#2-56	0.07 in	0.089 in	0.096 in
#1	-	0.076 in	0.081 in
#0-80	0.047 in	0.064 in	0.07 in

Metric
Size	Tapped	Close	Normal	Loose
M10-1.5	8.5 mm	10.5 mm	11 mm	12 mm
M8-1.25	6.8 mm	8.4 mm	9 mm	10 mm
M6-1	5 mm	6.4 mm	6.6 mm	7 mm
M5-0.8	4.2 mm	5.3 mm	5.5 mm	5.8 mm
M4-0.7	3.3 mm	4.3 mm	4.5 mm	4.8 mm
M3-0.5	2.5 mm	3.2 mm	3.4 mm	3.6 mm
M2.5-0.45	2.05 mm	2.7 mm	2.9 mm	3.1 mm
M2-0.4	1.6 mm	2.2 mm	2.4 mm	2.6 mm
M1.6-0.35	1.25 mm	1.7 mm	1.8 mm	2 mm
M1.4-0.3	1.1 mm	1.5 mm	1.6 mm	1.8 mm
M1.2-0.25	0.95 mm	1.3 mm	1.4 mm	1.5 mm
M1-0.25	0.75 mm	1.1 mm	1.2 mm	1.3 mm

Spacers

Mounting Patterns
Vendor	Product	Hole Size	Screw Size	Mounting Height	Mounting Width	Full Height	Full Width
CTRE	Voltage Regulator Module	0.15 in	#6, M3.5	1.695 in	1.88 in	2.03 in	2.22 in
CTRE	Power Distribution Panel	0.21 in	#12, M5	7.176 in	4.11 in	7.586 in	4.748 in
CTRE	Pneumatics Control Module	0.1445 in	#6, M3.5	2.403 in	1.923 in	2.72 in	2.24 in
CTRE	Pigeon 2.0	0.1285 in	#5, M3	1.14 in	1.14 in	1.77 in	1.77 in
REV	Power Distribution Hub	0.196 in	#10, M5	8.5 in	4 in	8.94 in	4.38 in
REV	Mini Power Module	0.196 in	#10, M5	3 in	1.5 in	3.38 in	1.88 in
REV	Radio Power Module	0.196 in	#10, M5	3 in	0 in	3.38 in	1.25 in
REV	Pneumatic Hub	0.196 in	#10, M5	4 in	1.5 in	4.38 in	1.88 in
AndyMark	Main Breaker (Series 18X)	0.26 in	1/4", M6	2.23 in	1.05 in	2.89 in	1.9 in
Anderson Power	SB50	0.14 in	#6, M3.5	0.75 in	0 in	1.89 in	1.38 in
Anderson Power	SB120	0.2 in	#10, M5	0.75 in	0 in	2.5 in	1.83 in
NI	roboRIO (bottom)	0.112 in	#4	5 in	4 in	5.637 in	5.754 in
NI	roboRIO (top)	0.112 in	#4	0 in	1.954 in	5.637 in	5.754 in

Bearings
Link	Bore	ID	OD	Flanged OD	Total Height	Flange Height	Flangeless Height
TTB-0050	Round	3.5 in	4 in		0.25 in		0.25 in
TTB-0004	Round	13.75 mm	0.75 in	0.875 in	0.375 in	0.125 in	0.25 in
TTB-0065	Round	47 mm	35 mm	0 in	7 mm	1.5 mm	5.5 mm
TTB-0003	Round	3.5 in	4 in		0.25 in		0.25 in
TTB-0008	Round	0.375 in	0.875 in	0.9675 in	0.28 in	0.0625 in	0.2175 in
TTB-0039	Round	2.5 in	3 in		0.25 in		0.25 in
TTB-0027	Round	0.25 in	0.5 in		0.188 in		0.188 in
TTB-0028	Round	10.25 mm	0.875 in	0.97 in	0.28 in	0 in	0.28 in
TTB-0006	Round	16 mm	8 mm	18 mm	5 mm	1.3 mm	3.7 mm
TTB-0064	Round	47 mm	35 mm		7 mm		7 mm
TTB-0025	Round	0.5 in	1.125 in	0 in	0.313 in	0 in	0.313 in
TTB-0023	Round	0.375 in	0.875 in		0.28 in		0.28 in
TTB-0038	Round	0.25 in	0.75 in		0.28 in		0.28 in
TTB-0026	Round	3 in	3.5 in		0.25 in		0.25 in
TTB-0091	Round	4 in	4.5 in		0.25 in		0.25 in
TTB-0081	Round	0.875 in	1.125 in		0.5 in		0.5 in
TTB-0024	Round	0.5 in	1.125 in		0.313 in		0.313 in
TTB-0022	Round	0.375 in	1.125 in		0.375 in		0.375 in
TTB-0021	Round	0.25 in	0.375 in		0.125 in		0.125 in
217-5830	Round	0.302 in	0.875 in	0.969 in	0.281 in	0.063 in	0.218 in
WCP-0784	Round	10.25 mm	0.875 in	0.969 in	0.281 in	0.063 in	0.218 in
WCP-0785	Round	13.75 mm	1.125 in	1.225 in	0.313 in	0.063 in	0.25 in
WCP-0072	Round	0.25 in	0.5 in	0.547 in	0.188 in	0.05 in	0.138 in
WCP-0042	Round	0.25 in	0.625 in	0.718 in	0.196 in	0.032 in	0.164 in
WCP-0779	Round	0.375 in	0.875 in	0.969 in	0.281 in	0.063 in	0.218 in
WCP-0780	Round	0.375 in	1.125 in	1.225 in	0.313 in	0.063 in	0.25 in
WCP-0781	Round	0.5 in	1.125 in	1.225 in	0.313 in	0.063 in	0.25 in
WCP-0783	Hex	0.5 in	1.125 in	1.225 in	0.313 in	0.063 in	0.25 in
217-2789	Round	0.75 in	1.375 in	1.512 in	0.437 in	0.07 in	0.367 in
WCP-0773	Round	0.188 in	0.5 in		0.196 in		0.196 in
WCP-0774	Round	0.25 in	0.375 in		0.125 in		0.125 in
WCP-0775	Round	0.25 in	5 in		0.188 in		0.188 in
WCP-0041	Round	0.25 in	0.625 in		0.196 in		0.196 in
WCP-0212	Round	0.25 in	0.75 in		0.282 in		0.282 in
WCP-0776	Round	0.375 in	0.875 in		0.281 in		0.281 in
WCP-0777	Round	0.5 in	0.875 in		0.281 in		0.281 in
WCP-0778	Round	0.5 in	1.125 in		0.313 in		0.313 in
WCP-1503	Round	2.5 in	3 in		0.25 in		0.25 in
WCP-1111	Round	2.5 in	3.125 in		0.3125 in		0.3125 in
WCP-0357	Round	3 in	3.5 in		0.25 in		0.25 in
WCP-0887	Round	3 in	3.5 in		0.25 in		0.25 in
WCP-0037	Round	3.5 in	4 in		0.25 in		0.25 in
WCP-0896	Round	3.5 in	4 in		0.25 in		0.25 in
WCP-0498	Round	6 mm	12 mm		4 mm		4 mm
WCP-1508	Round	8 mm	16 mm		5 mm		5 mm
WCP-0078	Round	15 mm	24 mm		5 mm		5 mm
WCP-0840	Round	15 mm	28 mm		7 mm		7 mm
WCP-0841	Round	17 mm	26 mm		5 mm		5 mm
WCP-0027	Round	25 mm	37 mm		7 mm		7 mm
WCP-0299	Round	30 mm	42 mm		7 mm		7 mm
WCP-1471	Round	35 mm	47 mm		7 mm		7 mm
WCP-0036	Round	80 mm	100 mm		10 mm		10 mm
WCP-0040	Round	8 mm	16 mm		5 mm		5 mm
REV-21-2386	Round	0.75 in	1 in		0.5 in		0.5 in
REV-21-1916	Round	13.75 mm	1.125 in	1.225 in	0.313 in	0.063 in	0.25 in
BRG-0001	Hex	0.5 in	1.125 in	1.226 in	0.3285 in	0.0625 in	0.266 in
BRG-0002	Round	0.375 in	0.875 in	0.97 in	0.2895 in	0.0625 in	0.227 in
SDS	Round	15 mm	24 mm		5 mm		5 mm
SDS	Round	8 mm	16 mm		5 mm		5 mm
SDS	Round	9 mm	17 mm	19 mm	5 mm	1 mm	4 mm
SDS	Round	3.5 in	4 in		0.25 in		0.25 in
Armabot	Round	10 mm	19 mm	21 mm	5 mm	1 mm	4 mm
Armabot	Round	12 mm	21 mm	23 mm	5 mm	1 mm	4 mm
Armabot	Round	15 mm	24 mm	26 mm	5 mm	1 mm	4 mm
Armabot	Round	17 mm	26 mm	28 mm	5 mm	1 mm	4 mm
Armabot	Round	20 mm	32 mm	35 mm	7 mm	1 mm	6 mm
Armabot	Round	25 mm	37 mm	40 mm	7 mm	1 mm	6 mm
Armabot	Round	30 mm	42 mm	43 mm	7 mm	1 mm	6 mm
Armabot	Round	35 mm	47 mm	50 mm	7 mm	1 mm	6 mm
am-2986	Hex	0.5 in	1.125 in	1.225 in	0.312 in	0.062 in	0.25 in
am-4489	Hex	0.375 in	0.875 in	0.975 in	0.28 in	0.065 in	0.215 in
am-4703	Hex	0.5 in	1.125 in		0.313 in		0.313 in
am-0028	Round	0.375 in	0.875 in	0.969 in	0.281 in	0.062 in	0.219 in
am-0573	Round	0.375 in	1.125 in	1.25 in	0.312 in	0.062 in	0.25 in
am-0030	Round	0.5 in	1.125 in	1.225 in	0.312 in	0.062 in	0.25 in