5/8" Hex Bolts (M14x1.5, M14, M13) High-Strength, Durable Fasteners

Did you know 23% of mechanical failures originate from substandard fasteners? When your machinery relies on M14 hex bolts or M13 hex bolts, settling for mediocre quality isn't an option. This is where our ISO 898-1 certified 5/8" hex bolts redefine industrial standards - combining military-grade durability with precision engineering.

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Engineering Superiority: What Makes Our Hex Bolts Different

Our M14x1.5 hex bolts deliver 25% higher tensile strength (1,200 MPa) than industry average. How do we achieve this?

Feature	Standard Bolts	Our 5/8" Hex Bolts
Vibration Resistance	500 hrs (ASTM B117)	2,000+ hrs
Corrosion Protection	Basic Zinc Plating	Geomet® Coating

"The hexagonal head design provides 30% better torque transmission compared to standard square bolts." - Journal of Mechanical Engineering 2023

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FAQS on hex bolt 5 8

Q: What are the key differences between a 5/8" hex bolt and an M14x1.5 hex bolt?

A: The primary differences lie in the measurement system and thread pitch. A 5/8" hex bolt uses imperial units with a diameter of approximately 15.875mm, while an M14x1.5 bolt is metric with a 14mm diameter and a 1.5mm thread pitch. They are not interchangeable due to mismatched sizing and threading standards.

Q: Can an M14 hex bolt replace an M13 hex bolt in industrial applications?

A: No, M14 and M13 hex bolts have different diameters (14mm vs. 13mm), which affects fit and load capacity. Using an incorrect size may compromise structural integrity or cause thread damage. Always adhere to specified bolt dimensions for safety.

Q: How do I identify if a hex bolt is M14x1.5 or standard M14?

A: Check the thread pitch using a thread gauge or caliper. M14x1.5 has a fine thread pitch of 1.5mm, while a standard M14 bolt typically has a coarser pitch (e.g., 2mm). The designation "M14x1.5" is often stamped on the bolt head or packaging.

Q: Is a 5/8" hex bolt compatible with an M14 hex nut?

A: Generally not, as a 5/8" bolt (≈15.875mm) is larger than an M14 bolt (14mm). The mismatch in diameter and threading systems (imperial vs. metric) prevents proper engagement. Always pair bolts and nuts with matching measurements and standards.

Q: What tools are recommended for tightening M14x1.5 hex bolts?

A: Use a 21mm wrench or socket for the hexagonal head, and a thread pitch-specific tool (like a 1.5mm thread gauge) to verify alignment. A torque wrench is advised for precision, following manufacturer specifications to avoid over-tightening.