Metric bolt grades and strength calculator was developed to show proof strength , tensile strength , Vickers / Brinell hardness, minimum breaking torque and stress area of metric bolts and screws made of carbon steel and alloy steel. Steel Bolts - Metric Grades Steel Bolts - SAE Grades For metric bolts strength is according ISO 898 Mechanical properties of fasteners made of carbon steel and alloy steel described by property classes with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9. Metric Bolts - Tightening Torques - Typical heremended thightening torques for metric bolts Metric Nuts - Proof Loads - Proof loads of metric nuts - coarse and fine threads Metric Steel Bolts - Grades and Property Classes - Metric steel bolts , screws and studs - proof and tensile strength

M10 M8 M14 M16 M12 M11 Metric Threads Thread Size Tensile Class 10.9 Class 12.9 Area Class 8.8 Class 9.8 Proof Load, Yield, Tensile Chart GFC Engineering Testing Center 1524 East 14 Mile Road • Madison Heights, MI 48071 • 248-307-0567 • here Proof Load, Yield Tensile Strength Chart Metric Aug 31, 2011 An 8.8 M10 bolt in shear will take over 3 tonnes in shear so the tensile strength of the bolt is less of a consideration than the bearing capability of the plates. An M12 shank will increase the bearing force to 0.62 and 1.64 tons for the same plates. 19 rows Metric Bolts : Head Marking Class and Material Nominal Size Range (mm) Mechanical …

A Short Guide To Metric Nuts and Bolts Answers to the most Frequently Asked Questions Standard and Fine Pitch Th reads How to identify nut and bolt strength grades . less of the bolts ’ strength on squeezing the ﬂ anges together and leave more strength available for carrying the weight. Technical Reference Guide Table of Contents Subject Page # Fastener Material Selection 1 . Structural Bolts 28 Standards 30 Metric heremon Specifications for Use with Fasteners 33 . area will result in lower bolt shear strength . To take full advantage of strength properties, Bolt Shear Capacity FASTENERS Table 12 Specification AS 1111 AS 1110 Prop. Cl. 8.8 AS 1110 Prop. Cl 10.9 . M10 20 13 39 26 51 34 7/16 26 16 50313663 39 45 M12 28 19 57 38 74 50 . Basis is ultimate shear stress equals 62% of ultimate tensile strength . Reference AS 4100-1990. This ratio was established on tension loaded lap joints.

Minimum Tensile Stress Hex Bolts HEX BOLTS - MINIMUM TENSILE STRESS (MPa or N/mm) Nominal Pitch Stress Area Class Class AS1252 Class Size mm mm 4.6 8.8 10.9 M3 0.50 5.03 400 800 - 1040 M4 0.70 8.78 400 800 - 1040 M5 0.80 14.20 400 800 - 1040 M6 1.00 20.10 400 800 - 1040 M8 1.25 36.60 400 800 - 1040 M10 1.50 58.00 400 800 - 1040