The total vertical distance measured from the top of the threads to the inside bottom of the hook bend. Hook Length (H): The shorter vertical leg of the "J" shape.
For a detailed technical guide with specifications, review the Arab Bolts document J-Type Anchor Bolt Specifications | PDF | Screw - Scribd
The Ultimate Guide to J-Bolt Catalogues: How to Select, Spec, and Source the Right Fasteners
For imperial projects, common sizes include and 3/4"-10 . 3. Material Grades and Coatings j-bolt catalogue pdf
Industrial catalogues typically split J-bolts into light-duty (wire-formed) and heavy-duty (structural anchor) categories. Below are the most frequently requested standard dimensions found in industrial PDF catalogues. Imperial Sizes (ASTM Standards) Nominal Diameter (D) Thread Length (T) Hook Length (H) Inside Bend Radius (R) Common Overall Lengths (L) 6", 8", 10", 12" 1/2" - 13 8", 10", 12", 15" 5/8" - 11 10", 12", 15", 18" 3/4" - 10 12", 15", 18", 24" 7/8" - 9 15", 18", 24", 30" 1" - 8 18", 24", 30", 36" Metric Sizes (DIN 3570 / ISO Standards) Nominal Diameter (D) Thread Length (T) Hook Length (H) Inside Bend Radius (R) Common Overall Lengths (L) M10 150 mm, 200 mm, 250 mm M12 200 mm, 250 mm, 300 mm M16 250 mm, 300 mm, 400 mm M20 300 mm, 400 mm, 500 mm M24 400 mm, 500 mm, 600 mm 3. Material Grades and Mechanical Properties
A J-Bolt is a mechanical fastener shaped like the letter "J." It is primarily used to anchor objects to concrete or masonry. One end is threaded, while the other is curved into a hook.
The application environment dictates the finish and material. A good catalogue PDF will present these options in a clear table. The total vertical distance measured from the top
The following tables represent the standard industrial specifications found in major manufacturing catalogs. These follow ASME B18.31.5 (for bent bolts) and ASTM specifications. Imperial Dimensions (Inches) Nominal Diameter (D) Standard Lengths (L) Hook Length (H) Standard Thread (T) Min. Bend Radius (R) 1/2" - 13 5/8" - 11 3/4" - 10 10" to 30" 7/8" - 9 12" to 36" 1" - 8 12" to 48" 1-1/4" - 7 18" to 60" Metric Dimensions (Millimeters) Nominal Diameter (D) Standard Lengths (L) Hook Length (H) Standard Thread (T) Min. Bend Radius (R) M10 x 1.5 150mm - 300mm M12 x 1.75 200mm - 450mm M16 x 2.0 250mm - 600mm M20 x 2.5 300mm - 750mm M24 x 3.0 400mm - 900mm 3. Material Grades and Mechanical Properties
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A without pullout and shear values is useless. Look for tables referencing ICC-ES or IBC codes. These tables must include: Imperial Sizes (ASTM Standards) Nominal Diameter (D) Thread
The catalogue will specify the "thread projection" – the amount of thread above the nut. Standard is two to three threads past the nut. Ensure your chosen J-bolt leaves enough room for washers and double nuts.
Ensure the catalogue specifies whether the threads are Coarse (UNC) or Fine (UNF). Most concrete anchors use UNC threads for easier field assembly.