Table 6.

Average values of the ultimate shear stress and embedment stiffness for the tested screws for different torque values and loading directions.

Torque [N ⋅ cm]	Pull-out		Push-in		Shear
	${\tau }_f$ [MPa]	c [N/mm3]	${\tau }_f$ [MPa]	c [N/mm3]	${\tau }_f$ [MPa]	c [N/mm3]
25	7.79	2.67	12.06	17.47	1.64	0.42
30	9.04	2.71	10.76	14.23	3.43	0.42
35	9.52	3.09	13.56	19.65	3.82	0.45