Mutual Screw & Supply

9/16-18 X 3" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc (25 / Pkg.)

9/16-18 X 3" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc (25 - Main image
$62.03 $83.83 In stock

9/16-18 x 3" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • PFC9 Alloy Steel Yellow Zinc construction
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 25

Specifications

  • Thread Size: 9/16-18
  • Length: 3"
  • Threads Per Inch: 18
  • Material: Alloy Steel
  • Grade: PFC9
  • Finish: Yellow Zinc CR+6
  • Pack Quantity: 25
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

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

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

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

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

View policy

Customer Reviews (4.6 / 5 · 5 reviews)

Aurora F. ★★★★★

Bolts arrived well-packed and the yellow zinc coating looks even better in person than in the photos. I torqued them down on a jig I welded up and the hex heads grabbed cleanly with a socket, no stripping. For 25 pieces, the price is fair for something this solid.

Stella O. ★★★★★

Used these to secure the base of a small press I was rebuilding, and the 3-inch length was perfect for getting through the flange and into the frame. The hex head seated cleanly in my socket without any cam-out. They feel solid and the yellow zinc finish looks good.

Zoe ★★★★★

I was pleasantly surprised by the weight and feel of these screws—the yellow zinc coating looks more durable than I expected for the price. They threaded smoothly into my equipment without any binding, which saved me time on assembly.