Zoro Select
Zoro Select MPB751 Carriage Bolt 5/16-18 x 1 1/2 in Pack of 5
Chrome-plated Grade 5 carriage bolts, 5/16-18 by 1 1/2 inches, pack of five
- TypeBolts
- Grade 5 steel rated at 120,000 psi tensile strength
- Chrome-plated finish resists corrosion in outdoor use
- Square neck locks into wood to prevent bolt spin
- ASME B18.5 compliant dimensions ensure reliable fit
- Pack of five carriage bolts for multiple fastening jobs
Zoro Select Grade 5 Carriage Bolts
These bolts are medium carbon steel fasteners with a chrome plated finish and a square neck design. They meet ASME B18.5 standards and come in a pack of five. The coarse UNC threading and round head profile suit general purpose fastening tasks.
Builders needing Grade 5 strength in a 5/16-18 size
The 120000 psi tensile strength handles structural shear loads where Grade 2 hardware would be insufficient. Projects requiring stainless corrosion resistance or a different thread pitch should select alternative fasteners.
1 1/2 inch length with 5/16 inch diameter
The 0.688 inch head diameter and 0.156 inch square height provide standard clearance for Grade 2 nuts. The 21/64 inch drill size guides pilot hole preparation. Longer grip lengths or higher grade requirements exceed this package.
Highlights
- Grade 5 steel rated at 120,000 psi tensile strength
- Chrome-plated finish resists corrosion in outdoor use
- Square neck locks into wood to prevent bolt spin
- ASME B18.5 compliant dimensions ensure reliable fit
- Pack of five carriage bolts for multiple fastening jobs
Specifications
| Brand | ZORO SELECT |
|---|---|
| Type | Bolts |
Questions about this item
What size drill bit is needed for the 5/16-18 threads?
The specified drill size is 21/64 in to match the 5/16-18 UNC thread specification.
Will these Grade 5 bolts work with the Grade 2 nuts I already have?
Yes, the manufacturer highlights confirm they are for use with Grade 2 nuts.
How can I verify the square neck dimensions after installation?
Measure the square width at 0.307 in and square height at 0.156 in to match the stated specs.
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