3 8 Bolt Shear Strength

Reference to table 1 shows that the yield strength of a grade 8 bolt is higher than the ultimate strength of a grade 5 bolt.

3 8 bolt shear strength.

Shear stress ave bolt pin n mm 2 lbs in 2 bearing area stress b t n mm 2 lbs in 2. Jack stands are typically rated from 3 to 12 tons so we d think that the jack stand would fail before the bolt does. Tensile strength mpa class 8 8 medium carbon steel quenched and tempered. Head marking class and material nominal size range mm mechanical properties.

Mm tensile 4 фn sa lb kn shear фv sa lb kn 1 4 1 3 4 1 590 1 065 44 7 1 4 7 3 8 2 3 8 4 770 2 905 60 21 2 12 9 1 2 2 1 4 8 745 38 9 4 315 57 19 2 3 1 2 4 390 89 19 5 5 8 3 1 2 13 515 60 1. All sizes below 16mm. Safe shear strength at 7500 psi load note. 16mm 72mm.

Yield strength mpa min. These values seems awfully low to me. Proof load mpa min. Strength mechanics of materials beam deflection structural analysis.

Grade 2 low carbon steel up to 3 4 proof load 55000 psi minimum tensile strength 74000 psi 3 4 1 1 2 proof load 33000 psi minimum tensile strength 66000 psi. So shear strength yield strength bolt is damage. There exists an often quoted myth that grade 5 bolts are better in shear than grade 8 since they will bend before breaking. Shear strengths of bolts by diameter.

Bolt safe working loads lbs safe tensile load at 6 000 psi load. Material strength 60 000 psi j82 60m or grade 1 or class 4 8. 5mm 100mm. So if we take shear strength is 60 of tensile strength we have 45 000 psi.

This information is derived from data here. Keep units consistant when performing calculations. Grade 5 medium carbon steel quenched and tempered up to 1 proof load 85000 psi 1 1 1 2 proof load 74000 psi minimum tensile strength 105000 psi. Shear strength of alloy steel is approximately 60 of its ultimate tensile strength.

Alma bolt company prime fasteners 1 800 526 2200 home size thread reference bolts screws pins washers nuts cable chain drop forged turned wire hardware alloy socket masonry electrical terminals b laster products. Material strength for threaded fasteners and headed industrial fasteners from elgin fasteners group is listed below by grade type and class and separated into 60 000 psi 75 000 psi and 120 000 psi. Table 4 steel design strength for hilti kwik bolt 3 carbon steel anchors1 2 nominal anchor diameter nominal 3 embedment in. Bolt or pin in single shear equation and calculator.

Bolt a193 b8m class 1 have tensile strength is 75 000 psi yield strength is 30 000 psi. Tensile strength and proof loads sae bolts.