M14 x 1.75p *60mm Metric Coarse Zinc Hex Bolts Class 8.9

Description

Product Introduction
This M14 x 1.75p * 60mm metric coarse tooth 8.9 grade galvanized hexagon bolt produced by VANGUARD INDUSTRIAL is a high-strength metal fastener:
Core parameters: M14 thread specification, 1.75mm pitch, 60mm nominal length of screw, metric coarse thread bolt with half tooth structure
Performance level: 8.9 grade high strength, after heat treatment process, the nominal tensile strength can reach 900MPa, the yield strength ratio is 0.9, the nominal yield strength can reach 810MPa, and the load-bearing and impact resistance are much higher than ordinary 4.8 grade bolts
Surface treatment: Galvanized and passivated as a whole, which can effectively prevent rust and corrosion, and is suitable for most outdoor and humid working conditions
It is widely used in heavy machinery assembly, engineering construction, equipment fixation, steel structure connection and other scenarios. When used in combination with nuts, flat washers, and spring washers of the same specifications, it can achieve high-strength component fastening connections.
🛠️ Usage
Preparation in advance
Confirm that the hole size of the workpiece to be connected is compatible with the M14 screw, prepare the corresponding specifications of M14 hex nuts, flat washers, spring washers, and compatible socket or torque wrenches, and check that the bolt threads have no defects such as burrs, deformation, coating peeling, etc.
Installation operation
Insert the bolt into the pre drilled hole of the workpiece, sequentially insert the flat washer and spring washer, and tighten the matching nut; Use a torque wrench to gradually tighten the bolts according to the standard torque value corresponding to grade 8.9 bolts, to avoid loose connections caused by insufficient torque or screw breakage caused by torque overload.
Precautions
Grade 8.9 high-strength bolts cannot be reused. After disassembly, it is recommended to replace them with new bolts before assembly; In important connection scenarios that bear dynamic loads, auxiliary measures such as anti loosening gaskets and thread glue can be used to further enhance the reliability of the connection.