Reference	Base diameter (A)	Metric (M)	Base height  (H)	Screw size (B)
SPF272508	27	M8	20	25
SPF272010	27	M10	20	20
SPF274010	27	M10	20	40
SPF402508	40	M8	20	25
SPF402010	40	M10	20	20
SPF403010	40	M10	20	30
SPF404010	40	M10	20	40
SPF406010	40	M10	20	60