The letter 'M' indicates that this bolt uses a metric thread. The number '8' refers to the nominal diameter of the bolt shaft in millimeters. The number 1.0 is the thread pitch of the bolt, which is the distance between threads, in millimeters.19 Jun 2020
What does M stand for in nuts?
M = This designates the fastener is a metric size. 10 = The nominal diameter in millimeters. 1.0 = The thread pitch, or distance between threads, in millimeters. 20 = The fastener's length, in millimeters.26 Feb 2020
How do you calculate bolt load capacity?
The tensile load a fastener can withstand is determined by the formula P = St x As. To find the tensile strength of a particular bolt, you will need to refer to Mechanical Properties of Externally Threaded Fasteners chart in the Fastenal Technical Reference Guide.
What is the shear strength of a 20mm bolt?
Diameter of Bolt Tensile Stress Area At Shear Capacity
---------------- ---------------------- --------------
mm mm2 kN
12 84.3 31.6
16 157 58.9
20 245 91.9
How much force can a bolt withstand?
Steel bolts are graded according to newtons per millimeter squared for bolt tensile strength as compared to yield strength. For example, a steel bolt with a rating of 5.5 will provide roughly 500 newtons/mm2 of bolt tensile strength and approximately 400 newtons/mm2 of yield strength.
Tap size Basic major dia (mm) Basic major dia (inch)
--------- -------------------- ----------------------
M18 x 2.5 18mm .7087
M18 x 1.5 18mm .7087
M20 x 2.5 20mm .7874
M20 x 1.5 20mm .7874
Using a standard wrench on a bolt or nut, the amount at force applied one foot away from the center of the bolt can be stated as foot-pounds force. To apply 100 ft-lbs torque to a bolt with a wrench long enough to allow a grip 2 ft. from the center of the bolt, would require 50 lbs. of force.
How much weight can a Grade 8 bolt support?
The tensile strength of a grade 8 bolt is 150,000 pounds per square inch. Tensile strength is the maximum load in tension (stretching) that a part can carry without breaking.