Home 1/2-13 x 2 1/4" Carriage Bolts / Full Thread / Grade 5 / Zinc (Quantity: 250 pcs)

1/2-13 x 2 1/4" Carriage Bolts / Full Thread / Grade 5 / Zinc (Quantity: 250 pcs)

Availablity: In stock
Carriage Bolts (Shaker Screen)
Grade 5
Round Head/ Square Neck
Manufactured to ASME B18.5 & SAE J249 specifications
Tensile Strength: 120,000 psi (

SKU: 107162

In stock
A carriage bolt, coach bolt or round head square neck bolt is a form of bolt used to fasten metal to wood. It is distinguished from other bolts by its shallow mushroom head and that the shank cross-section of the bolt is circular for most of its length, as usual, but the portion immediately beneath the head is formed into a square section. This makes the bolt self-locking when placed through a square hole in a metal strap, or a round hole in most wood. This allows the fastener to be installed with only a single tool, a spanner or wrench, working from one side. The head of a carriage bolt is usually a shallow dome. The squared section is of the same size as the diameter of the bolt shank, with a plain unthreaded shank. Carriage bolts were developed for use through iron strengthening plates on either side of a wooden beam. It is commonplace though to use them to bare timber, the squared section giving enough grip to prevent rotation. Carriage bolts are extensively used in security fixings, such as the Brenton Bolt where the bolt must only be removable from one side. The smooth domed head and square nut below prevent the carriage bolt from being unlocked from the insecure side.
More Information
EAN 8945136205320
Material Steel
Size 1/2-13
RoHS On Request
Technical File 1 pdf
Technical File 2 pdf
Carton Quantity 250
Unit of Measure Pounds
Finish Zinc
Grade Grade 5
Length 2 1/4"
Measurement System Inch
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You're reviewing:1/2-13 x 2 1/4" Carriage Bolts / Full Thread / Grade 5 / Zinc (Quantity: 250 pcs)