Mutual Screw & Supply

5/8-11 X 2-1/2" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Zinc Plated | Partially Threaded (125 / Pkg.)

5/8-11 X 2-1/2" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Zinc - Main image
$135.68 $212 In stock

A307 Grade B Steel Zinc Plated hex head cap screws, partially threaded, size 5/8-11 x 2-1/2". A dependable fastener for machinery, equipment assembly, and general industrial use.

  • A307 Grade B Steel Zinc Plated construction
  • partially threaded configuration
  • Hex head for wrench or socket drive
  • For machinery, equipment, and general-purpose fastening

Specifications

  • Thread Size: 5/8-11
  • Length: 2-1/2"
  • Threads Per Inch: 11
  • Material: A307 Grade B Steel Zinc Plated
  • Finish: Zinc Plated CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 125
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

William ★★★★★

The zinc coating on these bolts is even and smooth, no flaking or rough spots. Used a full dozen on a heavy equipment mount and each one seated perfectly without any binding. Solid buy for industrial work.

Evelyn ★★★★★

Threads were clean and uniform out of the box, and the zinc plating looks even across every single one of the 125. I torqued them into a steel fixture without a single stripped head or galling issue. Solid, heavy hex heads for the price.

Sebastian B. ★★★★★

Used about half of these to bolt down a heavy compressor base, and the zinc coating held up well against the garage floor moisture. The partial threading made it easy to get a snug fit without bottoming out the nut. Overall a solid, no-hassle fastener for the price.