In this video，JM Hardware® has explained about screw thread terminology like thread pitch, major diameter, minor diameter,bolt shank, thread angle, lead etc. Types of threads and threaded profiles and thread standards like metric thread (M and MJ threads), UN thread or inch series threads (UN threads, UNC threads, UNF threads, UNR thread, UNRF thread, UNRC thread, UNJ thread , UNJF thread & UNJEF thread), NPT thread, BSP thread, ACME, whitworth thread and buttress thread etc.

following questions are answered in this video.
bot grade explained.
what is bolt marking meaning.
What is the meaning of bolt grade or fastener. grade of metric fasteners.
Bolt head marking we have seen on the bolt head but what they mean.
Metric bolt head stamps . 
what is the strongest bolt grade.
what is the meaning of bolt grade.
what is the meaning of bolt head marking. 
what is bolt property class. 
what is the property class of  fasteners.
Is a 10.9 Bolt stronger than Grade 8?
Are Grade 8 bolts the strongest.
Is a Grade 5 bolt stronger than a Grade 8.
What is the difference between a 10.9 and 12.9 bolt.
what is bolt grade.
bolt grade 8.8 meaning.
Bolt Head Markings and What is the  meaning of bolt head markings.
Fasteners Bolt Grades Strength & Materials


What is the strongest bolt grade


different grades of bolts?


grades of bolt strength.


how to calculate bolt strength.


how to calculate bolt proof strength. 


how to calculate tensile strength of bolt.

When standard fasteners fail under the twin pressures of mechanical stress and aggressive environments, the search for a robust solution begins. JM Hardware® answers this call with our latest production run of custom carriage bolts made from Duplex Stainless Steel D6-70 (2205), a product engineered to deliver unmatched value and performance where it matters most.

Selecting the Right Fasteners for Your Project

SUS318, also known as 1Cr18Ni12Mo2Ti, is a type of austenitic stainless steel renowned for its exceptional corrosion resistance, high-temperature stability, and excellent mechanical properties. It is widely used in industries that demand materials capable of withstanding harsh environments, such as chemical processing, oil and gas, marine engineering, and more. Below, we delve into the key aspects of SUS318, including its chemical composition, physical and mechanical properties, performance characteristics, and applications.