Bolts

Elevator Bolt

Dimensions of Flat Countersunk Head Elevator Bolts

Nominal Size or Basic Bolt Diameter		E		A			C	F	H		O		P		Q	R
		Body Diameter		Head Diameter			Head Angle	Flat on Min Dia Head	Head Height		Square Width		Square Depth		Corner Radius on Square	Fillet Radius
		Body Diameter		Max Edge Sharp	Min Edge Sharp	Min Edge Flat	Head Angle	Flat on Min Dia Head	Head Height		Square Width		Square Depth		Corner Radius on Square	Fillet Radius
		Max	Min	Max Edge Sharp	Min Edge Sharp	Min Edge Flat	Ref	Max	Max	Min	Max	Min	Max	Min	Max	Max
No. 10	0.1900	0.199	0.182	0.790	0.750	0.740	9	0.025	0.082	0.062	0.210	0.185	0.125	0.094	0.031	0.031
1/4	0.2500	0.260	0.237	1.008	0.969	0.938	9	0.035	0.098	0.078	0.280	0.245	0.219	0.188	0.031	0.031
5/16	0.3125	0.324	0.298	1.227	1.188	1.157	9	0.035	0.114	0.094	0.342	0.307	0.250	0.219	0.031	0.031
3/8	0.3750	0.388	0.360	1.352	1.312	1.272	11	0.040	0.145	0.125	0.405	0.368	0.250	0.219	0.047	0.031
7/16	0.4375	0.452	0.421	1.477	1.438	1.397	13	0.040	0.176	0.156	0.468	0.431	0.281	0.250	0.047	0.031
1/2	0.5000	0.515	0.483	1.602	1.562	1.522	12	0.040	0.176	0.156	0.530	0.492	0.281	0.250	0.047	0.031
See Notes 1																2