Standard Grade 2 Fasteners

Grade 2, unlike grade 5 and grade 8, has become an industry term to refer to low carbon fasteners. Most low carbon fasteners manufactured today are actually A307. A307 bolts are similar to grade 2 but have slightly less tensile strength in larger diameters. When we mark an item as "Grade 2" it might be an A307 or a grade 2 depending on the manufacture. If you have an application where tensile strength is an issue please see our Grade 5 and Grade 8 fasteners.


Click on the links below to select just the sizes of cap screws, washers, nuts, or bolts you are looking for. If you need help searching or for special orders email us at sales@monsterfastener.com.

    Grade 2 Coarse Hex Bolts Grade 2 Hex Nuts Grade 2 Lock Nuts Grade 2 Flat Washers Grade 2 Lock Washers
    Hex Bolt*  
Hex Nuts  
Stop/Lock Nuts  
Flat Washers   Lock Washers
1/4 inch 1/4" (#14) 1/4-20 1/4 1/4 1/4 1/4
5/16 inch" 5/16" 5/16-18 5/16 5/16 5/16 5/16
3/8 inch" 3/8" 3/8-16 3/8 3/8 3/8 3/8
7/16 inch" 7/16" 7/16-14 7/16 7/16 7/16 7/16
1/2 inch" 1/2" 1/2-13 1/2 1/2 1/2 1/2
9/16 inch" 9/16" 9/16-12 9/16 9/16 9/16 9/16
5/8 inch" 5/8" 5/8-11 5/8 5/8 5/8 5/8
3/4 inch" 3/4" 3/4-10 3/4 3/4 3/4 3/4
7/8 inch" 7/8" 7/8-9 7/8 7/8 7/8 7/8
1 inch 1" 1-8 1" 1" 1" 1"
1 and 1/8 inch 1 1/8" 1.125" 1.125" 1.125" 1.125"
1 and 1/4 inch 1 1/4" 1.25" 1.25" 1.25" 1.25"
1 and 1/2 inch 1 1/2" 1.5" 1.5" 1.5" 1.5"
   
Hex Bolt* 
Hex Nuts 
Stop/Lock Nuts 
Flat Washers 
Lock Washers 

* Hex bolts and hex cap screws have become synonymous but technically a hex cap screw refers to a hex bolt with a thin fillet under its head and is machined with tighter tolerances. Our grade 2 bolts are hex bolts. If you need an actual cap screw please see our Stainless, Grade 5, and Grade 8 hex cap screws.